IP router configuration

Context

config>router>interface

config>router>router-advertisement>interface

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command administratively disables the entity. When disabled, an entity does not change, reset, or remove any configuration settings or statistics. Many entities must be explicitly enabled using the no shutdown command.

Unlike other commands and parameters where the default state is not indicated in the configuration file, shutdown and no shutdown are always indicated in system generated configuration files.

The no form of this command puts an entity into the administratively enabled state.

Default

no shutdown

Context

config>router>if

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command creates a text description stored in the configuration file for a configuration context.

The no form of this command removes the description string from the context.

Parameters

description-string

Specifies the description character string. Allowed values are any string up to 80 characters, composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes.

Context

config

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

Commands in this context configure router parameters and interfaces.

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables or disables ICMP redirects received on the management interface.

The no form of this command disables ICMP redirects.

Default

no allow-icmp-redirect

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables or disables IPv6 ICMP redirects received on the management interface.

The no form of this command disables IPv6 ICMP redirects.

Default

no allow-icmp6-redirect

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the autonomous system (AS) number for the router. A router can only belong to one AS. An AS number is a globally unique number with an AS. This number is used to exchange exterior routing information with neighboring ASs and as an identifier of the AS itself.

If the AS number is changed on a router with an active BGP instance, the new AS number is not used until the BGP instance is restarted either by administratively disabling or enabling (shutdown or no shutdown) the BGP instance or rebooting the system with the new configuration.

Parameters

autonomous-system

Specifies the autonomous system number expressed as a decimal integer.

Values

1 to 4294967295

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables ECMP and configures the number of routes for path sharing. For example, a value of 2 means two equal-cost routes are used for cost sharing.

ECMP can only be used for routes learned with the same preference and same protocol. When more ECMP routes are available at the best preference than configured in max-ecmp-routes, the lowest next-hop IP address algorithm is used to select the number of routes configured in max-ecmp-routes.

The no form of this command disables ECMP path sharing. If ECMP is disabled, and multiple routes are available at the best preference and equal cost, route selection is as follows:

• IGP selects the next-hop based on the lowest router ID

• static-route chooses the next-hop based on lowest next-hop IP address

Default

no ecmp

Parameters

max-ecmp-routes

Specifies the maximum number of equal cost routes allowed on this routing table instance, expressed as a decimal integer. Setting ECMP max-ecmp-routes to 1 yields the same result as entering no ecmp.

Values

1 to 4

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure global parameters related to MPLS labels.

Context

config>router>mpls-labels

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the range of MPLS static label values shared among static LSP, MPLS-TP LSP, and static service VC labels. When this range is configured, it is reserved and cannot be used by other protocols such as RSVP, LDP, BGP, or segment routing to assign a label dynamically.

The no form of this command reverts to the default value.

Default

18400

Parameters

static-range

Specifies the size of the static label range in number of labels. The minimum label value in the range is 32. The maximum label value is computed as {32+ static-range-1}.

Values

0 to 131040

Context

config>router>mpls-labels

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the range of the segment routing global block (SRGB). It is a label block that is used for assigning labels to SR prefix SIDs originated by the router. The range is carved from the system dynamic label range and is not instantiated by default.

This is a reserved label and when configured it cannot be used by other protocols such as RSVP, LDP, and BGP to assign a label dynamically.

The no form of this command reverts to the default value.

Default

no sr-labels

Parameters

start start-value

Specifies the start label value in the SRGB.

Values

18432 to 131071

end end-value

Specifies the end label value in the SRGB.

Values

18432 to 131071

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the router ID for the router instance.

The router ID is used by both OSPF and BGP routing protocols in this instance of the routing table manager. IS-IS uses the router ID value as its system ID.

When configuring a new router ID, protocols are not automatically restarted with the new router ID. The next time a protocol is initialized, the new router ID is used. This can result in an interim period of time when different protocols use different router IDs.

To force the new router ID to be used, issue the shutdown and no shutdown commands for each protocol that uses the router ID, or restart the entire router.

The no form of this command to reverts to the default value.

Default

The system uses the system interface address (which is also the loopback address)

If a system interface address is not configured, use the last 32 bits of the chassis MAC address.

Parameters

router-id

Specifies the 32-bit router ID expressed in dotted decimal notation or as a decimal value.

Context

config>router

Platforms

7210 SAS-D, 7210 SAS-Dxp, and 7210 SAS-K 2F1C2T

Description

This command creates static route entries for both the network and access routes.

When configuring a static route, either next-hop or black-hole must be configured.

If a CPE connectivity check target address is already being used as the target address in a different static route, the cpe-check parameters must match. If they do not, the new configuration command is rejected.

If a static-route command is issued with no cpe-check target but the destination prefix/netmask and next-hop match a static route that did have an associated cpe-check, the cpe-check test is removed from the associated static route.

The no form of this command deletes the static route entry. If a static route needs to be removed when multiple static routes exist to the same destination, then as many parameters to uniquely identify the static route must be entered.

Parameters

ip-prefix/prefix-length

Specifies the destination address of the static route.

Values

ipv4-prefix	a.b.c.d (host bits must be 0)
ipv4-prefix-length	0 to 32

Values

ipv6-prefix	x:x:x:x:x:x:x:x (eight 16-bit pieces)
	x:x:x:x:x:x:d.d.d.d
	x — 0 to FFFF (hexadecimal)
	d — 0 to 255 (decimal)
ipv6-prefix-length	0 to 128 (7210 SAS-D and 7210 SAS-K 2F1C2T) 0 to 64 (7210 SAS-Dxp)

ip-address

Specifies the IP address of the IP interface. The ip-addr portion of the address command specifies the IP host address that is used by the IP interface within the subnet. This address must be unique within the subnet and specified in dotted decimal notation.

Values

ipv4-address	a.b.c.d (host bits must be 0)
ipv6-address	x:x:x:x:x:x:x:x[-interface]
	x:x:x:x:x:x:d.d.d.d[-interface]
	x — 0 to FFFF (hexadecimal)
	d — 0 to 255 (decimal)

netmask

Specifies the subnet mask in dotted decimal notation.

Values

a.b.c.d (network bits all 1 and host bits all 0)

prefix-list prefix-list-name[all | none]

Specifies the prefix-list to be considered.

preference preference

Specifies the preference of this static route versus the routes from different sources, such as BGP or OSPF, expressed as a decimal integer. When modifying the preference of an existing static route, the metric is not changed unless specified.

Different protocols should not be configured with the same preference. If this occurs, the tiebreaker is according to the route preference defaults listed in Default route preferences.

If multiple routes are learned with an identical preference using the same protocol, the lowest- cost route is used. If multiple routes are learned with an identical preference using the same protocol and the costs (metrics) are equal, then the route to use is determined by the next-hop with the lowest address.

Values

1 to 255

metric metric

Specifies the cost metric for the static route, expressed as a decimal integer. When modifying the metric of an existing static route, the preference does not change unless specified. This value also determines which static route to install in the forwarding table.

If there are multiple routes with different preferences, the lower preference route is installed. If there are multiple static routes with the same preference but different metrics, the lower cost (metric) route is installed. If there are multiple static routes with the same preference and metric, the route with the lowest next-hop IP address is installed.

Values

0 to 65535

Default

1

black-hole

Specifies that the route is a blackhole route. If the destination address on a packet matches this static route, it is silently discarded.

The black-hole and next-hop keyword are mutually exclusive. If an identical command is entered (with the exception of the next-hop keyword), this static route is replaced with the newly entered command and, unless specified, the respective defaults for preference and metric is applied.

next-hop ip-address

Specifies the directly connected next hop IP address used to reach the destination.

The next-hop and black-hole keywords are mutually exclusive. If an identical command is entered (with the exception of the black-hole keyword), this static route is replaced with the newly entered command, and unless specified, the respective defaults for preference and metric is applied.

The ip-address configured here can be either on the network side or the access side on this node. This address must be associated with a network directly connected to a network configured on this node.

Values

ip-int-name (32 chars max)

enable

Static routes can be administratively enabled or disabled. The enable parameter reenables a disabled static route. To enable a static route, it must be uniquely identified by the IP address, mask, and any other parameter that is required to identify the exact static route. The administrative state is maintained in the configuration file.

Default

enable

disable

Static routes can be administratively enabled or disabled. The disable parameter disables a static route while maintaining the static route in the configuration. To enable a static route, it must be uniquely identified by the IP address, mask, and any other parameter that is required to identify the exact static route. The administrative state is maintained in the configuration file.

Default

enable

cpe-check cpe-ip-address

Specifies the IP address of the target CPE device. ICMP pings are sent to this target IP address. This parameter must be configured to enable CPE connectivity for the associated static route. To avoid possible circular references, the target IP address cannot be in the same subnet as the static route subnet.

Default

no cpe-check enabled

interval seconds

Specifies the interval between ICMP pings to the target IP address, in seconds.

Values

1 to 255

Default

1

drop-count count

Specifies the number of consecutive ping replies that must be missed to declare the CPE down and to deactivate the associated static route.

Values

1 to 255

Default

3

log

Sets the ability to log transitions between active and inactive based on the CPE connectivity check. Events should be sent to the system log, syslog, and SNMP traps.

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command creates static route entries for both the network and access routes. When configuring a static route, the next-hop, indirect, or black-hole parameter, indicating the type of static route, must be configured. Multiple types of static routes (next-hop, indirect, black-hole) can be applied to the same IP prefix. If a static route that is forwarding traffic goes down, the default route is used instead. The preference parameter is used to specify the order in which the routes are applied. If a blackhole static route has the same preference as another route with the same prefix, the blackhole route takes a lower precedence.

If a CPE connectivity check target address is already being used as the target address in a different static route, the cpe-check parameters must match. If they do not, the new configuration command is rejected.

If a static-route command is issued with no cpe-check target, but the destination prefix/netmask and next hop matches a static route that did have an associated CPE check, the cpe-check test is removed from the associated static route.

The no form of this command deletes the static route entry. If a static route needs to be removed when multiple static routes exist to the same destination, then as many parameters to uniquely identify the static route must be entered.

Default

no static-route

Parameters

ip-prefix/prefix-length

Specifies the destination address of the static route.

Values

ipv4-prefix	a.b.c.d (host bits must be 0)
ipv4-prefix-length	0 to 32

ipv6-prefix	x:x:x:x:x:x:x:x (eight 16-bit pieces)
	x:x:x:x:x:x:d.d.d.d
	x - 0 to FFFF (hexadecimal)
	d - 0 to 255 (decimal)
ipv6-prefix-length	0 to 128

ip-address

Specifies the IP address of the IP interface. The ip-addr portion of the address command specifies the IP host address that is used by the IP interface within the subnet. This address must be unique within the subnet and specified in dotted decimal notation.

Values

ipv4-address a.b.c.d (host bits must be 0)

Values

ipv6-address	x:x:x:x:x:x:x:x[-interface]
	x:x:x:x:x:x:d.d.d.d[-interface]
	x - 0 to FFFF (hexadecimal)
	d - 0 to 255 (decimal)

netmask

Specifies the subnet mask in dotted decimal notation.

Values

a.b.c.d (network bits all 1 and host bits all 0)

prefix-list prefix-list-name[all | none]

Specifies the prefix-list to be considered.

preference preference

Specifies the preference of this static route versus the routes from different sources such as OSPF, IS-IS, or BGP expressed as a decimal integer. When modifying the preference of an existing static route, the metric is not changed unless specified.

Different protocols should not be configured with the same preference. If this occurs, the tiebreaker is according to the route preference defaults listed in the following table.

Table 3. Default route preferences

Route type	Preference	Configurable
Direct attached	0	No
Static-route	5	Yes
OSPF Internal routes	10	Yes
IS-IS level 1 internal	15	Yes
IS-IS level 2 internal	18	Yes
OSPF External	150	Yes
IS-IS level 1 external	160	Yes
IS-IS level 2 external	165	Yes

If multiple routes are learned with an identical preference using the same protocol, the lowest- cost route is used. If multiple routes are learned with an identical preference using the same protocol and the costs (metrics) are equal, then the route to use is determined by the next hop with the lowest address.

Values

1 to 255

metric metric

Specifies the cost metric for the static route, expressed as a decimal integer. When modifying the metric of an existing static route, the preference does not change unless specified. This value is also used to determine which static route to install in the forwarding table.

If there are multiple routes with different preferences, the lower preference route is installed. If there are multiple static routes with the same preference but different metrics, the lower cost (metric) route is installed. If there are multiple static routes with the same preference and metric, the route with the lowest next-hop IP address is installed.

Values

0 to 65535

Default

1

black-hole

Specifies that the route is a blackhole route. If the destination address on a packet matches this static route, it is silently discarded.

The black-hole and next-hop keyword are mutually exclusive. If an identical command is entered (with the exception of the next-hop keyword), this static route is replaced with the newly entered command, and unless specified, the respective defaults for preference and metric are applied.

next-hop ip-int-name | ip-address

Specifies the directly connected next-hop interface name or IP address used to reach the destination. If the next hop is over an unnumbered interface, the ip-int-name of the unnumbered interface (on this node) can be configured.

The next-hop and black-hole keywords are mutually exclusive. If an identical command is entered (with the exception of the black-hole keyword), this static route is replaced with the newly entered command, and unless specified, the respective defaults for preference and metric is applied.

The ip-int-name is the interface name of the next hop. Interface names must be unique within the group of defined IP interfaces for config router interface commands. An interface name cannot be in the form of an IP address. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes.

The ip-address configured for the next-hop parameter can be either on the network side or the access side on this node. This address must be associated with a network that is directly connected to a network configured on this node.

Values

ip-int-name	32 chars max (must start with a letter)
ipv4-address	a.b.c.d
ipv6-address	x:x:x:x:x:x:x:x[-interface] (eight 16-bit pieces)
	x:x:x:x:x:x:d.d.d.d[-interface]
	x - 0 to FFFF (hexadecimal)
	d - 0 to 255 (decimal)
	interface: mandatory for link local addresses, up to 32 characters

tag tag

Specifies a 32-bit integer tag to be added to the static route. The tag is used in route policies to control distribution of the route into other protocols.

Values

1 to 4294967295

Default

5

enable

Specifies that a disabled static route will be reenabled. To enable a static route, it must be uniquely identified by the IP address, mask, and any other parameter that is required to identify the exact static route. The administrative state is maintained in the configuration file.

Default

enable

disable

Specifies that the static route will be disabled while maintaining the static route in the configuration. To enable a static route, it must be uniquely identified by the IP address, mask, and any other parameter that is required to identify the exact static route. The administrative state is maintained in the configuration file.

Default

enable

indirect ip-address

Specifies that the route is indirect and specifies the next-hop IP address used to reach the destination. The configured IP address is not directly connected to a network configured on this node. The destination can be reachable via multiple paths. The indirect address can be resolved either via a dynamic routing protocol or by another static route.

If a static route is configured with the same destination address, subnet mask, and indirect next-hop IP address as a previously configured static route, the newly configured route replaces the previous one, and unless specified, the respective defaults for preference and metric will be applied. The IP address configured for the indirect keyword must be on the network side of this node and be at least one hop away from the node.

Values

ip-address a.b.c.d

bfd-enable

Specifies that the state of the static route is associated with a BFD session between the local system and the configured next hop. This keyword cannot be configured if the next hop is configured as indirect or black-hole. For more information about the protocols and platforms that support BFD, see the BFD section in the 7210 SAS-D, Dxp, K 2F1C2T, K 2F6C4T, K 3SFP+ 8C Router Configuration Guide.

cpe-check cpe-ip-address

Specifies the IP address of the target CPE device. ICMP pings are sent to this target IP address. This parameter must be configured to enable CPE connectivity for the associated static route. To avoid possible circular references, the target IP address cannot be in the same subnet as the static route subnet. This parameter option and BFD support are mutually exclusive on a specific static route.

Default

no cpe-check enabled

interval seconds

Specifies the interval between ICMP pings to the target IP address, in seconds.

Values

1 to 255

Default

1

drop-count count

Specifies the number of consecutive ping replies that must be missed to declare the CPE down and to deactivate the associated static route.

Values

1 to 255

Default

3

ldp-sync

Specifies that the LDP synchronization feature is extended to a static route. When an interface comes back up after a failure, it is possible that a preferred static route, using the interface as the next hop for a specific prefix, is enabled before the LDP adjacency to the peer LSR comes up on this interface. When this happens, traffic on an SDP that uses the static route for the far-end address is blackholed until the LDP session comes up and the FECs exchanged. When LDP synchronization is enabled, activation of the static route is delayed until the LDP session comes up over the interface and the ldp-sync-timer configured on that interface has expired (see ldp-sync-timer).

log

Sets the ability to log transitions between active and in-active based on the CPE connectivity check. Events should be sent to the system log, syslog, and SNMP traps.

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command triggers route policy reevaluation.

By default, when a change is made to a policy in the config>router>policy>options context and then committed, the change is effective immediately. There may be circumstances when the changes should or must be delayed; for example, if a policy change is implemented that would affect every BGP peer on a 7210 SAS Mrouter, the consequences could be dramatic. It would be more effective to control changes on a peer-by-peer basis.

If the triggered-policy command is enabled, and a specific peer is established, and you want the peer to remain up, in order for a change to a route policy to take effect, a clear command with the soft or soft inbound option must be used.

Context

config>router>dhcp

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command instantiates a local DHCP server. A local DHCP server can serve multiple interfaces but is limited to the routing context it was which it was created.

Parameters

server-name

Specifies the name of local DHCP server.

create

Specifies that the local DHCP server is created. The create keyword requirement can be enabled or disabled in the environment>create context.

Context

config>router>dhcp>server

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables the sending of force-renew messages.

The no form of this command disables the sending of force-renew messages.

Default

no force-renews

Context

config>router>dhcp>server

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the time to remember this lease. This lease-hold-time is for unsolicited release conditions such as lease timeout and normal solicited release from DHCP client.

The no form of this command reverts to the default.

Default

sec 0

Parameters

lease-hold-time

Specifies the amount of time to remember the lease.

Values

days days	0 to 3650
hrs hours	0 to 23
min minutes	0 to 59
sec seconds	0 to 59

Context

config>router>dhcp>server

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures a DHCP address pool on the router.

Parameters

pool name

Specifies the name of this IP address pool. Allowed values are any string up to 32 characters composed of printable, 7-bit ASCII characters.

create

Specifies that the pool is created. The create keyword requirement can be enabled or disabled in the environment>create context.

Context

config>router>dhcp>server>pool

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the maximum lease time.

The no form of this command reverts the value to the default.

Default

10 days

Parameters

time

Specifies the maximum lease time.

Values

days days	0 to 3650
hrs hours	0 to 23
min minutes	0 to 59
sec seconds	0 to 59

Context

config>router>dhcp>server>pool

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the minimum lease time.

The no form of this command returns the value to the default.

Default

10 minutes

Parameters

time

Specifies the minimum lease time.

Values

days days	0 to 3650
hrs hours	0 to 23
min minutes	0 to 59
sec seconds	0 to 59

Context

config>router>dhcp>server>pool

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command specifies the minimum number of free addresses in this pool.

The no form of this command reverts to the default.

Default

1

Parameters

minimum-free

Specifies the minimum number of free addresses.

0 to 255

percent

Specifies that the value indicates a percentage.

event-when-depleted

Enables a system-generate event when all available addresses in the pool or subnet of local DHCP server are depleted.

Context

config>router>dhcp>server>pool

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the system to return a DHCP NAK message if the following conditions are met:

• the local DHCPv4 server receives a DHCP request with option 50 (meaning the client is trying to request a previously allocated message as described in section 3.2 of RFC 2131, Dynamic Host Configuration Protocol)

• the address allocation algorithm uses a pool and the address in option 50 is not in the pool

If the conditions are not met, the system drops the DHCP packet.

Default

no nak-non-matching-subnet

Context

config>router>dhcp>server>pool

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the offer time.

The no form of this command reverts the value to the default.

Default

1 minute

Parameters

time

Specifies the offer time.

Values

min minutes	0 to 10
sec seconds	0 to 59

Context

config>router>dhcp>server>pool

config>router>dhcp>server>pool>subnet

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure pool options. The options defined here can be overruled by defining the same option in the local user database.

Context

config>router>dhcp>server>pool>options

config>router>dhcp>server>pool>subnet>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures specific DHCP options. The options defined here can overrule options in the local user database.

The no form of this command removes the option from the configuration.

Parameters

option-number

Specifies the option number that the DHCP server uses to send the identification strings to the DHCP client.

Values

1 to 254

address ip-address

Specifies the IP address of this host.

hex hex-string

Specifies the hex value of this option.

Values

0x0 to 0xFFFFFFFF (maximum 254 hex nibbles)

string ascii-string

Specifies the value of this option, up to 127 characters.

Context

config>router>dhcp>server>pool>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the IP address of the DNS server.

Parameters

ipv-address

Specifies the IP address of the DNS server in dotted-decimal notation. Up to four addresses can be entered.

Values

a.b.c.d

Context

config>router>dhcp>server>pool>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the default domain for a DHCP client that the router uses to complete unqualified hostnames (without a dotted-decimal domain name).

The no form of this command removes the name from the configuration.

Parameters

domain-name

Specifies the domain name for the client.

Values

127 character maximum

Context

config>router>dhcp>server>pool>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the time the client transitions to a rebinding state.

The no form of this command removes the time from the configuration.

Parameters

time

Specifies the lease rebind time.

Values

days days	0 to 3650
hrs hours	0 to 23
min minutes	0 to 59
sec seconds	0 to 59

Context

config>router>dhcp>server>pool>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the time the client transitions to a renew state.

The no form of this command removes the time from the configuration.

Parameters

time

Specifies the lease renew time.

Values

days:	0 to 3650
hours:	0 to 23
minutes:	0 to 59
seconds	0 to 59

Context

config>router>dhcp>server>pool>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the amount of time that the DHCP server grants to the DHCP client permission to use a particular IP address.

The no form of this command removes the lease time parameters from the configuration.

Parameters

time

Specifies the lease time.

Values

days days	0 to 3650
hrs hours	0 to 23
min minutes	0 to 59
sec seconds	0 to 59

Context

config>router>dhcp>server>pool

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command creates a subnet of IP addresses to be served from the pool. The subnet cannot include any addresses that were assigned to subscribers without those addresses specifically excluded. When the subnet is created no IP addresses are made available until a range is defined.

Parameters

ip-address

Specifies the base IP address of the subnet. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d (no multicast address)

mask

Specifies the subnet mask in Classless Inter-Domain Routing (CIDR) notation, expressed as a decimal integer.

Values

8 to 30

netmask

Specifies a string of 0s and 1s that mask or screen out the network part of an IP address so that only the host computer part of the address remains.

Values

a.b.c.d (any mask expressed as dotted quad)

create

Specifies that the subnet is created. The create keyword requirement can be enabled or disabled in the environment>create context.

Context

config>router>dhcp>server>pool>subnet

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures a range of IP addresses to be served from the pool. All IP addresses between the start and end IP addresses are included (other than specific excluded addresses).

Parameters

start-ip-address

Specifies the start address of this range to include. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d

end-ip-address

Specifies the end address of this range to include. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d

failover local

Specifies that the DHCP server failover control type is in control under normal operation.

failover remote

Specifies that the remote DHCP server failover system is in control under normal operation.

Context

config>router>dhcp>server>pool>subnet

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command specifies a range of IP addresses that excluded from the pool of IP addresses in this subnet.

Parameters

start-ip-address

Specifies the start address of this range to exclude. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d

end-ip-address

Specifies the end address of this range to exclude. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d

Context

config>router>dhcp>server>pool>subnet

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the maximum number of declined addresses allowed.

Default

64

Parameters

maximum-declined

Specifies the maximum number of declined addresses allowed.

Values

0 to 4294967295

Context

config>router>dhcp>server>pool>subnet

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the minimum number of free addresses in this subnet. If the actual number of free addresses in this subnet falls below this configured minimum, a notification is generated.

Default

1

Parameters

minimum-free

Specifies the minimum number of free addresses in this subnet.

Values

0 to 255

percent

Specifies that the value indicates a percentage.

event-when-depleted

This parameter enables a system-generate event when all available addresses in the pool or subnet of local DHCP server are depleted.

Context

config>router>dhcp>server>pool>subnet>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the IP address of the default router for a DHCP client. Up to four IP addresses can be specified.

The no form of this command removes the address or addresses from the configuration.

Parameters

ip-address

Specifies the IP address of the default router. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d

Context

config>router>dhcp>server>pool>subnet>options

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command specifies the subnet-mask option to the client. The mask can either be defined (for super-netting) or taken from the pool address.

The no form of this command removes the address from the configuration.

Parameters

ip-address

Specifies the IP address of the subnet mask. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d

Context

config>router>dhcp>local-dhcp-server

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables the use of gi-address matching. If the gi-address flag is enabled, a pool can be used even if a subnet is not found. If the local-user-db-name is not used, the gi-address flag is used and addresses are handed out by GI only. If a user must be blocked from getting an address, the server maps to a local user database and configures the user with no address.

A pool can include multiple subnets. Because the GI is shared by multiple subnets in a subscriber interface, the pool may provide IP addresses from any of the subnets included when the GI is matched to any of its subnets. This allows a pool to be created that represents a sub-int.

Default

no use-gi-address

Parameters

scope scope

Specifies if addresses are assigned for a specific subnet where the GI address belongs to only or for all subnets part of the pool.

Values

subnet — Addresses are only assigned for the subnet where the GI address belongs.

pool — All subnets that are part of the pool containing the subnet to which the GI address can assign addresses.

Context

config>router>dhcp>server

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures a local user database for authentication.

Default

no user-db

Parameters

local-user-db-name

Specifies the name of a local user database.

create

Specifies that the local user database is created. The create keyword requirement can be enabled or disabled in the environment>create context.

Context

config>router

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure route next-hop policies.

Context

config>router>route-next-hop-policy

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command discards the changes that have been made to route next-hop templates during the current session.

Context

config>router>route-next-hop-policy

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables the editing mode for route next-hop templates. Use the commit command to save edits made during the current session. Use the abort command to discard edits made during the current session.

Context

config>router>route-next-hop-policy

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command saves the changes that have been made to route next-hop templates during the current session.

Context

config>router>route-next-hop-policy

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command creates a template to configure the attributes of a Loop-Free Alternate (LFA) Shortest Path First (SPF) policy. An LFA SPF policy allows the user to apply specific criteria, such as admin group and SRLG constraints, to the selection of an LFA backup next-hop for a subset of prefixes which resolve to a specific primary next-hop.

First, the user creates a route next-hop policy template under the global router context and then applies it to a specific OSPF or ISIS interface in the global routing instance.

A policy template can be used in both IS-IS and OSPF to apply the specific criteria to prefixes protected by LFA. Each instance of IS-IS or OSPF can apply the same policy template to one or more interfaces.

The commands within the route next-hop policy template use the begin-commit-abort model. The following are the steps needed to create and modify the template.

1. To create a template, the user enters the name of the new template directly under the route-next-hop-policy context.

2. To delete a template which is not in use, the user enters the no form for the template name under the route-next-hop-policy context.

3. The user enters the editing mode by executing the begin command under the route-next-hop-policy context. The user can then edit and change any number of route next-hop policy templates. However, the parameter value is still stored temporarily in the template module until the commit command is executed under the route-next-hop-policy context. Any temporary parameter changes are lost if the user enters the abort command before the commit command.

4. The user is allowed to create or delete a template instantly when in the editing mode without the need to enter the commit command. Also, if the abort command is executed, it has no effect on the prior deletion or creation of a template.

After the commit command is executed, IS-IS or OSPF reevaluates the templates. If there are any net changes, IS-IS or OSPF schedule a new LFA SPF to recompute the LFA next-hop for the prefixes associated with these templates.

The no form of this command deletes a template.

Parameters

template-name

Specifies the name of the template, up to 32 characters.

Context

config>router>route-next-hop-policy>template

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the description of the next-hop template.

Parameters

description-string

Specifies the description of the next-hop template. 80 characters maximum.

Context

config>router>route-next-hop-policy>template

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command prunes all links belonging to the specified admin group before making the LFA backup next-hop selection for a prefix.

If the same group name is part of both include-group and exclude-group configurations, the exclude-group configuration takes precedence. It other words, the exclude-group statement can be viewed as having an implicit preference value of 0.

The no form of this command deletes the admin group exclusion constraint from the route next-hop policy template.

Parameters

ip-admin-group-namec d

Specifies the name of the admin group to be excluded, up to 32 characters.

Context

config>router>route-next-hop-policy>template

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command instructs the LFA SPF selection algorithm to pick up a subset of LFA next-hops among the links which belong to one or more of the specified admin groups. A link which does not belong to at least one of the admin groups is excluded. However, a link can still be selected if it belongs to one of the groups in an include-group configuration but also belongs to other groups which are not part of any include-group configuration in the route next-hop policy.

The pref option is used to provide a relative preference for the admin group to select. A lower preference value means that LFA SPF will first attempt to select an LFA backup next-hop which is a member of the corresponding admin group. If none is found, then the admin group with the next higher preference value is evaluated. If no preference is configured for a specific admin group name, then it is supposed to be the least preferred, or numerically the highest preference value.

When evaluating multiple include-group configurations within the same preference, any link which belongs to one or more of the included admin groups can be selected as an LFA next-hop. There is no relative preference based on how many of those included admin groups the link is a member of.

If the same group name is part of both include-group and exclude-group configurations, the exclude-group configuration takes precedence. It other words, the exclude-group statement can be viewed as having an implicit preference value of 0.

The no form deletes the admin group constraint from the route next-hop policy template.

Parameters

ip-admin-group-name

Specifies the name of the admin group to be included, up to 32 characters.

preferences

Specifies the relative preference of a group, with 1 corresponding to the highest preference and 255 corresponding to the lowest preference.

Values

1 to 255

Context

config>router>route-next-hop-policy>template

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the next-hop type for the route next-hop policy template.

The user can select IP backup next-hop is preferred.

When the route next-hop policy template is applied to an IP interface, all prefixes using this interface as a primary next-hop follow the next-hop type preference specified in the template.

The no form deletes the next-hop type constraint from the route next-hop policy template.

Default

ip

Parameters

{ip | tunnel}

Specifies the two possible values for the next-hop type.

Context

config>router>route-next-hop-policy>template

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the protection type for the route next-hop policy template.

The user can select if link protection or node protection is preferred in the selection of a LFA next-hop for all IP prefixes and LDP FEC prefixes to which a route next-hop policy template is applied. The default in SR OS implementation is node protection. The implementation falls back to the other type if no LFA next-hop of the preferred type is found.

When the route next-hop policy template is applied to an IP interface, all prefixes using this interface as a primary next-hop follow the protection type preference specified in the template.

The no form deletes the protection type constraint from the route next-hop policy template.

Parameters

link

Specifies that link protection is preferred.

node

Specifies that node protection is preferred.

Context

config>router>route-next-hop-policy>template

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the SRLG constraint for the route next-hop policy template.

When this command is applied to a prefix, the LFA SPF attempts to select an LFA next-hop from the computed ones, which uses an outgoing interface that does not participate in any of the SLRGs of the outgoing interface used by the primary next-hop.

The no form of this command deletes the SRLG constraint from the route next-hop policy template.

Context

config>router

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command creates a system or a loopback IP routing interface. When created, attributes like IP address, or system can be associated with the IP interface.

Interface names are case-sensitive and must be unique within the group of IP interfaces defined for config router interface. Interface names must not be in the dotted decimal notation of an IP address.; for example, the name ‟1.1.1.1” is not allowed, but ‟int-1.1.1.1” is allowed. Show commands for router interfaces use either the interface names or the IP addresses. Ambiguity can exist if an IP address is used as an IP address and an interface name.

When a new name is entered, a new logical router interface is created. When an existing interface name is entered, the user enters the router interface context for editing and configuration.

Although not a keyword, the ip-int-name ‟system” is associated with the network entity, not a specific interface. The system interface is also referred to as the loopback address.

The no form of this command removes the IP interface and all the associated configurations. The interface must be administratively shut down before issuing the no interface command.

Parameters

interface-name

Specifies the name of the IP interface. Interface names must be unique within the group of defined IP interfaces for config router interface commands. An interface name cannot be in the form of an IP address. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes.

If the interface-name already exists, the context is changed to maintain that IP interface. If ip-int-name already exists within another service ID or is an IP interface defined within the config router commands, an error occurs and the context is not changed to that IP interface. If interface-name does not exist, the interface is created and the context is changed to that interface for further command processing.

Values

1 to 32 alphanumeric characters.

Context

config>router>interface

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command assigns an IP address to a system IP interface. Only one IP address can be associated with an IP interface.

The IP address for the interface can be entered in either CIDR (Classless Inter-Domain Routing) or traditional dotted decimal notation. Show commands display CIDR notation and are stored in configuration files.

By default, no IP address or subnet association exists on an IP interface until it is explicitly created.

If a new address is entered while another address is still active, the new address is rejected.

The no form of this command removes the IP address assignment from the IP interface. The no form of this command can only be performed when the IP interface is administratively shut down.

Parameters

ip-address

Specifies the IP address of the IP interface. The ip-address portion of the address command specifies the IP host address that is used by the IP interface within the subnet. This address must be unique within the subnet and specified in dotted decimal notation.

Values

a.b.c.d (no multicast or broadcast address)

/

Specifies a parameter delimiter that separates the ip-address portion of the IP address from the mask that defines the scope of the local subnet. No spaces are allowed between the ip-address, the ‟/” and the mask-length parameter. If a forward slash does not immediately follow the ip-address, a dotted decimal mask must follow the prefix.

mask

Specifies the subnet mask length when the IP prefix is specified in CIDR notation. When the IP prefix is specified in CIDR notation, a forward slash (/) separates the ip-address from the mask parameter. The mask length parameter indicates the number of bits used for the network portion of the IP address; the remainder of the IP address is used to determine the host portion of the IP address.

Values

1 to 32

netmask

Specifies the subnet mask in dotted decimal notation.

Values

a.b.c.d (network bits all 1 and host bits all 0)

broadcast {all-ones | host-ones}

Specifies an optional parameter that overrides the default broadcast address used by the IP interface when sourcing IP broadcasts on the IP interface. If no broadcast format is specified for the IP address, the default value is host-ones, which indicates a subnet broadcast address. Use this parameter to change the broadcast address to all-ones or revert back to a broadcast address of host-ones.

The all-ones keyword following the broadcast parameter specifies that the broadcast address used by the IP interface for this IP address will be 255.255.255.255, also known as the local broadcast.

The host-ones keyword following the broadcast parameter specifies that the broadcast address used by the IP interface for this IP address will be the subnet broadcast address. This is an IP address that corresponds to the local subnet described by the ip-address and the mask-length or mask with all the host bits set to binary 1. This is the default broadcast address used by an IP interface.

The broadcast parameter within the address command does not have a negate feature, which is usually used to revert a parameter to the default value. To change the broadcast type to host-ones after being changed to all-ones, the address command must be executed with the broadcast parameter defined.

The broadcast format on an IP interface can be specified when the IP address is assigned or changed.

This parameter does not affect the type of broadcasts that can be received by the IP interface. A host sending either the local broadcast (all-ones) or the valid subnet broadcast address (host-ones) will be received by the IP interface.

Values

all-ones, host-ones

Default

host-ones

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the minimum time, in seconds, an ARP entry learned on the IP interface is stored in the ARP table. ARP entries are automatically refreshed when an ARP request or gratuitous ARP is seen from an IP host. Otherwise, the ARP entry is aged from the ARP table. If the arp-timeout value is set to 0 seconds, ARP aging is disabled.

The no form of this command reverts to the default value.

Default

14400

Parameters

seconds

The minimum number of seconds a learned ARP entry is stored in the ARP table, expressed as a decimal integer. A value of 0 specifies that the timer is inoperative and learned ARP entries are not aged.

Values

0 to 65535

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command specifies the bidirectional forwarding detection (BFD) parameters for the associated IP interface. If no parameters are defined, the default values are used.

The multiplier specifies the number of consecutive BFD messages that must be missed from the peer before the BFD session state is changed to down and the upper level protocols (OSPF, IS-IS) are notified of the fault.

The no form of this command removes BFD from the router interface, regardless of the RSVP.

Default

no bfd

Parameters

transmit-interval

Specifies the transmit interval, in milliseconds, for the BFD session.

Values

10 to 1000

receive receive-interval

Specifies the receive interval, in milliseconds, for the BFD session.

Values

10 to 1000

Default

100

multiplier multiplier

Specifies the multiplier for the BFD session.

Values

3 to 20

Default

3

echo-receive echo-interval

Specifies the minimum echo receive interval, in milliseconds, for the session.

Values

100 to 1000

Default

100

type iom-hw

Specifies that IOM-based hardware BFD sessions are used. The user must explicitly set this keyword when configuring a BFD on an IP interface that is configured on a port.

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command creates a delay to make the interface operational by the specified number of seconds

The value is used whenever the system attempts to bring the interface operationally up.

Parameters

seconds

Specifies a delay, in seconds, to make the interface operational.

Values

1 to 1200

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables local proxy ARP on the interface.

The no form of this command disables local proxy ARP on the interface.

Default

no local-proxy-arp

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the IGP-LDP synchronization timer. This timer enables synchronization of IGP and LDP, and synchronization of static routes and LDP. This command is not supported on RIP interfaces.

When a link is restored after a failure, IGP sets the link cost to infinity and advertises it; if it’s a static route, the route activation is delayed until this timer expires. The supported IGPs are OSPF and IS-IS. The value advertised in OSPF is 0xFFFF (65535). The value advertised in IS-IS regular metric is 0x3F (63) and in IS-IS wide-metric is 0xFFFFFE (16777214).

If an interface belongs to both IS-IS and OSPF, a physical failure causes both IGPs to advertise infinite metric and to follow the IGP-LDP synchronization procedures. If only one IGP bounces on this interface or on the system, only the affected IGP advertises the infinite metric and follows the IGP-LDP synchronization procedures.

After IGP advertises the link cost, the LDP hello adjacency is brought up with the neighbor. IGP starts the LDP synchronization timer when the LDP session to the neighbor becomes operationally up over the interface. This synchronization timer allows time for the label-FEC bindings to be exchanged.

When the LDP synchronization timer expires, the link cost is restored and is readvertised. IGP announces a new best next-hop and LDP uses it if the label binding for the neighbor’s FEC is available.

The preceding behavior is similar for static routes. If the static route is enabled for ldp-sync (see static-route), the route is not enabled immediately after the interface to the next hop comes up. Routes are suppressed until the LDP adjacency with the neighbor comes up and the synchronization timer expires. The timer does not start until the LDP adjacency with the neighbor node is fully established.

If the user changes the cost of an interface, the new value is advertised at the next flooding of link attributes by IGP. However, if the LDP synchronization timer is still running, the new cost value is only advertised after the timer expires. Also, if the currently advertised cost is different, the new cost value is advertised after the user executes any of the following commands:

• tools>perform>router>ospf>ldp-sync-exit

• tools>perform>router>isis>ldp-sync-exit

• config>router>interface>no ldp-sync-timer

• config>router>ospf>disable-ldp-sync

• config>router>isis>disable-ldp-sync

See the 7210 SAS-D, Dxp, K 2F1C2T, K 2F6C4T, K 3SFP+ 8C OAM and Diagnostics Guidefor the tools commands and to the 7210 SAS-D, Dxp, K 2F1C2T Routing Protocols Guide and the 7210 SAS-K 2F6C4T, K 3SFP+ 8C Routing Protocols Guide for the OSPF and IS-IS commands.

If the user changes the value of the LDP synchronization timer parameter, the new value takes effect at the next synchronization event. That is, if the timer is still running, it continues using the previous value.

If parallel links exist to the same neighbor, the bindings and services should remain up as long as there is one interface that is up. However, the user-configured LDP synchronization timer still applies on the failed then restored interface. In this case, the 7210 SAS only considers this interface for forwarding after IGP re-advertises its actual cost value.

The LDP Sync Timer State is not always synchronized across to the standby CSM, so after an activity switch the timer state may not be same as it was on the previously active CSM.

If the ldp-sync-timer value is configured on the interface but LDP is not running on the interface, the configuration causes the IGP route cost to increase to the maximum value.

The no form of this command disables IGP-LDP synchronization and deletes the configuration.

Default

no ldp-sync-timer

Parameters

seconds

Specifies the time interval for the IGP-LDP synchronization timer in seconds

Values

1 to 1800

Context

config>router>interface

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command configures the interface as a loopback interface.

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command assigns a specific MAC address to an IP interface. Only one MAC address can be assigned to an IP interface. When multiple mac commands are entered, the last command overwrites the previous command.

The no form of this command reverts the MAC address of the IP interface to the default value.

Default

IP interface has a system-assigned MAC address

Parameters

ieee-mac-addr

Specifies the 48-bit MAC address for the IP interface in the form aa:bb:cc:dd:ee:ff or aa-bb-cc-dd-ee-ff where aa, bb, cc, dd, ee and ff are hexadecimal numbers. Allowed values are any non-broadcast, non-multicast MAC and non-IEEE reserved MAC addresses.

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables SNTP broadcasts received on the IP interface. This parameter is only valid when the SNTP broadcast-client global parameter is configured.

The no form of this command disables SNTP broadcast received on the IP interface.

Default

no ntp-broadcast

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command creates an association with a logical IP interface and a physical port.

An interface can also be associated with the system (loopback address).

The command returns an error if the interface is already associated with another port or the system. In this case, the association must be deleted before the command is reattempted.

If the card in the slot has MDAs, port-id is in the slot_number/MDA_number/port_number format; for example, 1/1/3 specifies port 3 of the MDA installed in MDA slot 1 on the card installed in chassis slot 1.

The encapsulation type is an property of a Ethernet network port. The port in this context can be tagged with either IEEE 802.1Q (referred to as dot1q) encapsulation or null encapsulation. Dot1q encapsulation supports multiple logical IP interfaces on a specific network port and Null encapsulation supports a single IP interface on the network port.

The no form of this command deletes the association with the port. The no form of this command can only be performed when the interface is administratively down.

Parameters

port-name

Specifies the physical port identifier to associate with the IP interface.

Values

port-name	port-id [:encap-val]
encap-val	- 0	for null
	- 0 to 4094	for dot1q
port-id:	slot/mda/port[.channel]
lag-id	- lag-<id>
lag	- keyword
id	- 1 to 200

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables and configures proxy ARP on the interface and specifies an existing policy statement to analyze match and action criteria that controls the flow of routing information to and from a specific protocol, set of protocols, or a particular neighbor. The policy-name is configured in the config>router>policy-options context.

Use proxy ARP so the 7210 SAS responds to ARP requests on behalf of another device. Static ARP is used when a 7210 SAS needs to know about a device on an interface that cannot or does not respond to ARP requests. Therefore, the 7210 SAS configuration can state that if it has a packet that has a specific IP address to send it to the corresponding ARP address.

Default

no proxy-arp-policy

Parameters

policy-name

Specifies the export route policy name. Allowed values are any string up to 32 characters composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes. The specified policy names must already be defined.

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables remote proxy ARP on the interface.

Default

no remote-proxy-arp

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures a static Address Resolution Protocol (ARP) entry associating an IP address or an unnumbered address with a MAC address for the core router instance. This static ARP appears in the core routing ARP table. A static ARP can only be configured if it exists on the network attached to the IP interface.

If an entry for a particular IP address already exists and a new MAC address is configured for the IP address, the existing MAC address is replaced by the new MAC address.

Static ARP is used when a 7210 SAS router needs to know about a device on an interface that cannot or does not respond to ARP requests. Therefore, the 7210 SAS configuration can state that if it has a packet that has a specific IP address to send the packet to the corresponding ARP address.

The no form of this command removes a static ARP entry.

Default

no static-arp

Parameters

ip-address

Specifies the IP address for the static ARP in IP address dotted decimal notation.

ieee-address

Specifies the 48-bit MAC address for the static ARP in the form aa:bb:cc:dd:ee:ff or aa-bb-cc-dd-ee-ff where aa, bb, cc, dd, ee and ff are hexadecimal numbers. Allowed values are any non-broadcast, non-multicast MAC and non-IEEE reserved MAC addresses.

unnumbered

Specifies the static ARP MAC is for an unnumbered interface. Unnumbered interfaces support dynamic ARP. When this command is configured, it overrides any dynamic ARP.

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command sets an IP interface as an unnumbered interface and specifies the IP address to be used for the interface.

To conserve IP addresses, unnumbered interfaces can be configured. The address used when generating packets on this interface is the ip-address parameter configured.

An error message is generated when an unnumbered interface is configured and an IP address already exists on this interface.

The no form of this command removes the IP address from the interface, effectively removing the unnumbered property. The interface must be shutdown before the no unnumbered command is issued to delete the IP address from the interface.

Default

no unnumbered

Parameters

ip-int-name | ip-address

Specifies the IP interface name or IP address with which to associate the unnumbered IP interface, in dotted decimal notation. The configured IP address must exist on this node. Nokia recommends to use the system IP address as it is not associated with a particular interface and is therefore always reachable. The system IP address is the default if ip-int-name or ip-address is not configured.

Context

config>router

Platforms

7210 SAS-K 3SFP+ 8Cs

Description

This command enables the Unicast RPF check feature on this router.

Context

config>router>urpf-check

config>router>urpf-check>ipv6>ignore-default

Platforms

7210 SAS-K 3SFP+ 8C

Description

This command configures the Unicast RPF check feature (if enabled) to ignore default routes for purposes of determining the validity of incoming packets.

The no form of this command considers the default route to be eligible when performing a Unicast RPF check.

Default

no ignore-default

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure egress network filter policies for the IP interface. If an egress filter is not defined, no filtering is performed.

Context

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure ingress network filter policies for the IP interface. If an ingress filter is not defined, no filtering is performed.

Context

config>router>if>ingress

config>router>if>egress

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command associates an IP filter policy with an IP interface.

Filter policies control packet forwarding and dropping based on IP match criteria.

The ip-filter-id must have been preconfigured before this filter command is executed. If the filter ID does not exist, an error occurs.

Only one filter ID can be specified.

The no form of this command removes the filter policy association with the IP interface.

Parameters

ip ip-filter-id

Specifies the ID for the IP filter policy, expressed as a decimal integer. The filter policy must already exist within the config>filter>ip context.

Values

1 to 65535

Context

config>router>interface

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

Commands in this context configure Internet Control Message Protocol (ICMP) parameters on a network IP interface. ICMP is a message control and error reporting protocol that also provides information relevant to IP packet processing.

Context

config>router>if>icmp

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables responses to ICMP mask requests on the router interface.

If a local node sends an ICMP mask request to the router interface, the mask-reply command configures the router interface to reply to the request.

The no form of this command disables replies to ICMP mask requests on the router interface.

Default

mask-reply

Context

config>router>if>icmp

Platforms

7210 SAS-D, 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command enables and configures the rate for ICMP redirect messages issued on the router interface.

When routes are not optimal on this router, and another router on the same subnetwork has a better route, the router can issue an ICMP redirect to alert the sending node that a better route is available.

The redirects command enables the generation of ICMP redirects on the router interface. The rate at which ICMP redirects are issued can be controlled with the optional number and time parameters by indicating the maximum number of redirect messages that can be issued on the interface for a specific time interval.

By default, generation of ICMP redirect messages is enabled at a maximum rate of 100 per 10 second time interval.

The no form of this command disables the generation of ICMP redirects on the router interface.

Parameters

number

Specifies the maximum number of ICMP redirect messages to send, expressed as a decimal integer. This parameter must be specified with the time parameter.

Values

10 to 1000

Default

100

seconds

Specifies the time frame, in seconds, used to limit the number of ICMP redirect messages that can be issued. This value is expressed as a decimal integer.

Values

1 to 60

Default

10

Context

config>router>if>icmp

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command configures the rate that Internet Control Message Protocol (ICMP) Time To Live (TTL) expired messages are issued by the IP interface.

By default, generation of ICMP TTL expired messages is enabled at a maximum rate of 100 per 10 second time interval.

The no form of this command disables the generation of TTL expired messages.

Parameters

number

Specifies the maximum number of ICMP TTL expired messages to send, expressed as a decimal integer. The seconds parameter must also be specified.

Values

10 to 1000

Default

100

seconds

Specifies the time frame, in seconds, used to limit the number of ICMP TTL expired messages that can be issued. This value is expressed as a decimal integer.

Values

1 to 60

Default

10

Context

config>router>if>icmp

Platforms

Supported on all 7210 SAS platforms as described in this document

Description

This command enables and configures the rate for ICMP host and network destination unreachable messages issued on the router interface.

The unreachables command enables the generation of ICMP destination unreachables on the router interface. The rate at which ICMP unreachables is issued can be controlled with the optional number and seconds parameters by indicating the maximum number of destination unreachable messages that can be issued on the interface for a specific time interval.

By default, generation of ICMP destination unreachables messages is enabled at a maximum rate of 100 per 10 second time interval.

The no form of this command disables the generation of ICMP destination unreachables on the router interface.

Parameters

number

Specifies the maximum number of ICMP unreachable messages to send, expressed as a decimal integer. The seconds parameter must also be specified.

Values

10 to 1000

Default

100

seconds

Specifies the time frame, in seconds, used to limit the number of ICMP unreachable messages that can be issued. The value is expressed as a decimal integer.

Values

1 to 60

Default

10

Context

config>router

config>router>interface

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure or apply IP interface attributes such as administrative group (admin-group) or Shared Risk Loss Group (SRLG).

Context

config>router>if-attribute

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command defines an administrative group (admin-group) which can be associated with an IP or MPLS interface.

Admin groups, also known as affinity, are used to tag IP and MPLS interfaces which share a specific characteristic with the same identifier. For example, an admin group identifier could represent all links which connect to core routers, all links which have bandwidth higher than 10G, or all links which are dedicated to a specific service.

First, the user configures, locally on each router, the name and identifier of each admin group. A maximum of 32 admin groups can be configured per system.

Next, the user configures the admin group membership of an interface. The user can apply admin groups to a network IP or MPLS interface.

When applied to MPLS interfaces, the interfaces can be included or excluded in the LSP path definition by inferring the admin group name. CSPF computes a path that satisfies the inclusion and exclusion constraints of the admin group.

When applied to network IP interfaces, the interfaces can be included or excluded in the route next-hop selection by inferring the admin group name in a route next-hop policy template applied to an interface or a set of prefixes.

The following provisioning rules are applied to the admin group configuration. The system rejects the creation of an admin group if it reuses the same name or group value as an existing group.

Parameters

group-name

Specifies the name of the administrative group. The association of the group name and value should be unique within an IP/MPLS domain, up to 32 characters.

group-value

Specifies the value associated with the group. The association of the group name and value should be unique within an IP/MPLS domain.

Values

0 to 31

Context

config>router>if-attribute

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command defines a Shared Risk Loss Group (SRLG) which can be associated with an IP or MPLS interface.

SRLG is used to tag IP or MPLS interfaces that share a specific fate with the same identifier. For example, an SRLG group identifier could represent all links that use separate fibers but are carried in the same fiber conduit. If the conduit is accidentally cut, all the fiber links are cut, which means that all interfaces using these fiber links will fail.

First, the user configures, locally on each router, the name and identifier of each SRLG group. A maximum of 1024 SRLGs can be configured per system.

Next, the user configures the SRLG membership of an interface. The user can apply SRLGs to a network IP or MPLS interface. A maximum of 64 SRLGs can be applied to a specific interface.

When SRLGs are applied to MPLS interfaces, CSPF at LER will exclude the SRLGs of interfaces used by the LSP primary path when computing the path of the secondary path. CSPF at a LER or LSR will also exclude the SRLGs of the outgoing interface of the primary LSP path in the computation of the path of the FRR backup LSP. This provides path disjointness between the primary path and the secondary path or FRR backup path of an LSP.

When SRLGs are applied to network IP interfaces, they are evaluated in the route next-hop selection by adding the srlg-enable option in a route next-hop policy template applied to an interface or a set of prefixes. For instance, the user can enable the SRLG constraint to select a LFA next-hop for a prefix which avoids all interfaces that share fate with the primary next-hop.

The following provisioning rules are applied to SRLG configuration. The system will reject the creation of a SRLG if it reuses the same name but with a different group value than an existing group. The system will also reject the creation of an SRLG if it reuses the same group value but with a different name than an existing group.

Parameters

group-name

Specifies the name of the administrative group. The association of the group name and value should be unique within an IP/MPLS domain, up to 32 characters.

group-value

Specifies the value associated with the group. The association of the group name and value should be unique within an IP/MPLS domain.

Values

0 to 4294967295

Context

config>router>interface>if-attribute

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the admin group membership of an interface. The user can apply admin groups to a network IP or MPLS interface.

Each single operation of the admin-group command allows a maximum of 5 groups to be specified at a time. However, a maximum of 32 groups can be added to a specific interface through multiple operations. When an admin group is bound to one or more interfaces, its value cannot be changed until all bindings are removed.

The configured admin group membership will be applied in all levels/areas the interface is participating in. The same interface cannot have different memberships in different levels/areas.

The no form of this command deletes one or more of the admin-group memberships of an interface. The user can also delete all memberships of an interface by not specifying a group name.

Parameters

group-name

Specifies the name of an admin-group, up to 32 characters.

Context

config>router>interface>if-attribute

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures the SRLG membership of an interface. The user can apply SRLGs to a network IP or MPLS interface.

An interface can belong to a maximum of 64 SRLG groups. However, each single operation of the srlg-group command allows a maximum of 5 groups to be specified at a time. When an SRLG group is bound to one or more interfaces, its value cannot be changed until all bindings are removed.

The configured SRLG membership will be applied in all levels/areas the interface is participating in. The same interface cannot have different memberships in different levels/areas.

The no form of this command deletes one or more of the SRLG memberships of an interface. The user can also delete all memberships of an interface by not specifying a group name.

Parameters

group-name

Specifies the name of an SRLG, up to 32 characters.

Context

config>router>interface

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures IPv6 for a router interface.

The no form of this command disables IPv6 on the interface.

Default

not enabled

Context

config>router>if>ipv6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command assigns an IPv6 address to the interface.

Parameters

ipv6-address/prefix-length

Specifies the IPv6 address on the interface.

Values

ipv6-address/prefix:	ipv6-address	x:x:x:x:x:x:x:x (eight 16-bit pieces)
		x:x:x:x:x:x:d.d.d.d
		x — 0 to FFFF (hexadecimal)
		d — 0 to 255 (decimal)
prefix-length		1 to 128 (7210 SAS-D, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C) 1 to 64 (7210 SAS-Dxp)

eui-64

Specifies that a complete IPv6 address from the supplied prefix and 64-bit interface identifier is formed. The 64-bit interface identifier is derived from MAC addresses on Ethernet interfaces. For interfaces without a MAC address, for example POS interfaces, the Base MAC address of the chassis should be used.

Context

config>router>if>ipv6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

Commands in this context configure ICMPv6 parameters for the interface.

Context

config>router>if>ipv6>icmp6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures the rate for ICMPv6 packet-too-big messages.

Parameters

number

Specifies that the number of packet-too-big messages issued per the time frame, specified in the seconds parameter, will be limited.

Values

10 to 1000

seconds

Specifies the time frame, in seconds, that is used to limit the number of packet-too-big messages issued per time frame.

Values

1 to 60

Context

config>router>if>ipv6>icmp6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures the rate for ICMPv6 param-problem messages.

Parameters

number

Specifies that the number of param-problem messages issued per the time frame, specified in the seconds parameter, will be limited.

Values

10 to 1000

seconds

specifies the time frame, in seconds, that is used to limit the number of param-problem messages issued per time frame.

Values

1 to 60

Context

config>router>if>ipv6>icmp6

Platforms

7210 SAS-D, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures the rate for ICMPv6 redirect messages. When configured, ICMPv6 redirects are generated when routes are not optimal on the router and another router on the same subnetwork has a better route to alert that node that a better route is available.

The no form of this command disables ICMPv6 redirects.

Default

100 10 (when IPv6 is enabled on the interface)

Parameters

number

Specifies that the number of redirects issued per the time frame, specified in seconds parameter, will be limited.

Values

10 to 1000

seconds

Specifies the time frame, in seconds, that is used to limit the number of redirects issued per time frame.

Values

1 to 60

Context

config>router>if>ipv6>icmp6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures rate for ICMPv6 time-exceeded messages.

Parameters

number

Specifies that the number of time-exceeded messages issued per the time frame, specified in seconds parameter, will be limited.

Values

10 to 1000

seconds

Specifies the time frame, in seconds, that is used to limit the number of time-exceeded messages issued per time frame.

Values

1 to 60

Context

config>router>if>ipv6>icmp6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures the rate for ICMPv6 unreachable messages. When enabled, ICMPv6 host and network unreachable messages are generated by this interface.

The no form of this command disables the generation of ICMPv6 host and network unreachable messages by this interface.

Default

100 10 (when IPv6 is enabled on the interface)

Parameters

number

Specifies the number destination unreachable ICMPv6 messages to issue in the time frame specified in seconds parameter.

Values

10 to 1000

seconds

Sets the time frame, in seconds, to limit the number of destination unreachable ICMPv6 messages issued per time frame.

Values

1 to 60

Context

config>router>if>ipv6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures the link local address.

Context

config>router>if>ipv6

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command enables local proxy neighbor discovery on the interface.

The no form of this command disables local proxy neighbor discovery.

Context

config>router>if>ipv6

Platforms

7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C

Description

This command configures a proxy neighbor discovery policy for the interface.

Parameters

policy-name

Specifies the neighbor discovery policy name. Allowed values are any string up to 32 characters composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $, spaces, and so on), the entire string must be enclosed within double quotes. The specified policy names must already be defined.

Context

config>router>if>ipv6

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C

Description

This command configures an IPv6-to-MAC address mapping on the interface. Use this command if a directly attached IPv6 node does not support ICMPv6 neighbor discovery, or for some reason, a static address must be used. This command can only be used on Ethernet media.

The ipv6-address must be on the subnet that was configured from the IPv6 address command or a link-local address.

Parameters

ipv6-address

Specifies the IPv6 address assigned to a router interface.

Values

ipv6-address:	x:x:x:x:x:x:x:x (eight 16-bit pieces)
	x:x:x:x:x:x:d.d.d.d
	x - 0 to FFFF (hexadecimal)
	d - 0 to 255 (decimal)

mac-address

Specifies the MAC address for the neighbor in the form of xx:xx:xx:xx:xx:xx or xx-xx-xx-xx-xx-xx.

Context

config>router

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command enables router advertisement on IPV6 interfaces. By default, it is disabled for all IPv6-enabled interfaces.

The no form of this command disables router advertisement on all IPv6 interfaces.

Default

no router-advertisement

Context

config>router>router-advertisement

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures router advertisement properties on a specified IPv6 interface. The interface name must already exist in the config>router>interface>ipv6 context.

The no form of this command disables the specifies IPv6 interface.

Parameters

template-name

Specifies the name of an existing IPv6 interface. An interface name cannot be in the form of an IPv6 address. If the string contains special characters (such as #, $, spaces), the entire string must be enclosed within double quotes. The string must start with a letter and the max is 32 characters.

Context

config>router>router-advertisement>if

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command enables the router to advertise the hop-limit in ICMPv6 Neighbor Discovery (ND) router advertisement messages.

The no form of this command disables the advertising of the hop-limit in ICMPv6 ND router advertisement messages by the router.

Default

no current-hop-limit

Parameters

number

Specifies the number of hop limits.

Values

0 to 255 (a value of 0 means that there are an unspecified number of hops)

Default

64

Context

config>router>router-advertisement>if

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command enables the ‟managed-config-flag” to be advertised in ICMPv6 ND router advertisement messages.

The no form of this command disables the advertising of the ‟managed-config-flag” in ICMPv6 router advertisement messages.

Default

no managed-configuration

Context

config>router>router-advertisement>if

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures the maximum interval between sending ICMPv6 ND router advertisement messages.

The no form of this command disables the setting of a maximum interval between sending ICMPv6 ND router advertisement messages.

Default

no max-advertisement-interval

Parameters

seconds

Specifies the maximum interval, in seconds.

Values

4 to 1800

Default

600

Context

config>router>router-advertisement>if

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures the minimum interval between sending ICMPv6 ND router advertisement messages.

The no form of this command disables the setting of a minimum interval between sending ICMPv6 ND router advertisement messages.

Default

no min-advertisement-interval

Parameters

seconds

Specifies the minimum interval, in seconds.

Values

3 to 1350

Default

200

Context

config>router>router-advertisement>interface

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures the MTU for sending packets to the router.

The no form of this command disables the sending of MTU in the router advertisement messages

Default

no mtu

Parameters

mtu-bytes

Specifies the MTU for the nodes to use when sending packets.

Values

1280 to 9212

Context

config>router>router-advertisement>interface

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command enables the ‟other-config-flag” to be advertised in ICMPv6 ND router advertisement messages.

The no form of this command disables the advertising of the ‟other-config-flag” in ICMPv6 router advertisement messages.

Default

no other-stateful-configuration

Context

config>router>router-advertisement>interface

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures the IPv6 prefix to include in router advertisement messages. To support multiple IPv6 prefixes, use multiple prefix statements.

The no form of this command disables the inclusion of an IPv6 prefix in router advertisement messages.

Default

no prefix

Parameters

ipv6-prefix/prefix-length

The Pv6 prefix.

Values

ipv6-prefix	x:x:x:x:x:x:x:x (eight 16-bit pieces)
	x:x:x:x:x:x:d.d.d.d
	x - 0 to FFFF (hexadecimal)
	d - 0 to 255 (decimal)
ipv6-prefix-length	0 to 128 (7210 SAS-D, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C) 0 to 64 (7210 SAS-Dxp)

Context

config>router>router-advertisement>interface>prefix

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command specifies whether the prefix can be used for a stateless address autoconfiguration.

The no form of this command disables the prefix to be used for a stateless address autoconfiguration.

Default

autonomous

Context

config>router>router-advertisement>interface>prefix

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command specifies whether the prefix can be used for onlink determination.

The no form of this command disables the prefix to be used for onlink determination.

Default

on-link

Context

config>router>router-advertisement>interface>prefix

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures the remaining time, in seconds, that this prefix continues to be preferred (time until deprecation). The address generated from a deprecated prefix should not be used as a source address in new communications. However, packets received on such an interface are processed as expected.

The no form of this command does disables the configuration of the time until deprecation for the prefix.

Default

no preferred-lifetime

Parameters

seconds

Specifies the remaining length of time, in seconds, that this prefix will be preferred.

Values

1 to 4294967294

infinite

Specifies that the prefix will always be preferred. A value of 4294967295 represents infinity.

Context

config>router>router-advertisement>interface>prefix

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command specifies the length of time, in seconds, that the prefix is valid for the purpose of onlink determination. The address generated from an invalidated prefix should not appear as the destination or source address of a packet.

The no form of this command disables configuration of the time that the prefix is valid for the purpose of onlink determination.

Default

no valid-lifetime

Parameters

seconds

Specifies the remaining length of time, in seconds, that this prefix will be valid.

Values

1 to 4294967294

infinite

Specifies that the prefix will always be valid. A value of 4294967295 represents infinity.

Context

config>router>router-advertisement>interface

Platforms

7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F6C4T, 7210 SAS-K 3SFP+ 8C

Description

This command configures how long the router should be considered reachable by other nodes on the link after receiving a reachability confirmation.

The no form of this command disables the configuration of how long the router should be considered reachable.

Default

no reachable-time

Parameters

milli-seconds

Specifies the amount of time, in milliseconds, that the router will be considered reachable.

Values

0 to 3600000