Access egress QoS policies for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
This section provides information to configure Access Egress QoS policies using the command line interface.
Overview
On 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12, the users have an option to use either port-based egress queuing and shaping or SAP-based egress queuing and shaping for SAPs configured on access ports or hybrid ports. Use the configure system resource-profile qos port-scheduler-mode command on the 7210 SAS-Mxp and the configure system global-res-profile qos port-scheduler-mode command on the 7210 SAS-R6 and 7210 SAS-R12 to select the mode to be used for SAPs configured on all the ports of the node (in other words, this is a per node setting).
On 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12, an access egress policy allows the user to define the marking values for the traffic sent out of the access ports toward the customer. Access egress QoS policies map forwarding class flows to marking values to use. In addition, based on the queuing mode used on access egress, it also defines the per port queue parameters.
Access egress QoS policy for SAP-based queuing mode
The 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 support SAP-based marking for access SAPs and port-based egress marking on access ports. SAP-based marking is only supported for Layer 2 SAPs, that is, SAPs configured in Epipe and VPLS service. If user enables remarking in the SAP egress policy attached to the SAP, the remark policy configured is used to mark the packets sent out of the SAP. If remarking is disabled in the SAP egress policy attached to the SAP, remark policy configured under the access-egress policy associated with the egress access port is used to mark all packets sent out of the Layer 2 SAP configured on the access port. This is known as port-based marking.
Port-based marking is supported primarily for Layer 3 SAPs (that is, SAPs configured in VPRN services and IES services). In other words, SAP-based marking is not supported for Layer 3 SAPs.
On 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12, no explicit CLI command is provided to choose between port-based marking and SAP-based marking for Layer 2 SAPs. The user can choose SAP-based marking by enabling remarking in the SAP egress policy attached to the Layer 2 SAP or choose port-based marking by disabling remarking in the SAP egress policy attached to the SAP and enabling remarking in the access-egress policy associated with the access port on which the Layer 2 SAP is configured.
A remarking policy can be defined for each access egress policy and remarking is disabled by default. Only remarking policy of type dot1p, dot1p-lsp-exp-shared, dscp or dot1p-dscp can be used with access-egress policy. The following is the marking behavior with different remark policy types:
If remark policy type is dot1p or dot1p-lsp-exp-shared, then all traffic sent out of Layer 2 SAPs and Layer 3 SAPs configured on that port will have its Dot1p bits marked.
If remark policy type is dscp, then all traffic sent out of Layer 2 SAPs and Layer 3 SAPs configured on that port will have its IP DSCP bits marked (assuming Layer 2 SAPs are carrying IP traffic).
If remark policy type is of type dot1p-dscp, then all traffic sent out of Layer 2 SAPs and Layer 3 SAPs configured on that port will have its IP DSCP bits (assuming Layer 2 SAPs are carrying IP traffic) and dot1p bits marked.
On the 7210 SAS-Mxp, for Layer 2 SAPs, if remarking is enabled in the SAP egress policy and port-based marking is disabled, the dot1p values configured in the SAP egress policy are used. For Layer 3 SAPs no marking is done.
On the 7210 SAS-Mxp, Layer 2 SAPs, if remarking is enabled in the SAP egress policy and port-based marking is enabled, the dot1p values configured in the SAP egress policy are used. For Layer 3 SAPs, the dot1p and DSCP values configured in the access-egress policy are used. In addition, the DSCP values configured in the access-egress policy are used to mark the IP traffic sent out of Layer 2 SAPs.
On the 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12, if remarking is disabled for the SAP egress policy and port-based marking is enabled, IP DSCP values are marked, including for the traffic egressing from the Layer 2 SAPs configured on the port. To avoid this, it is recommended to use only FC-to-dot1p values when both Layer 2 and Layer 3 SAPs are configured on the same access port.
On the 7210 SAS-R6 and 7210 SAS-R12, if remarking is enabled for the SAP egress policy and port based marking is enabled, the values configured in the SAP egress policy are used. For L3 SAPs the values configured in the access-egress policy are used.
Access egress QoS policy for port-based queuing mode
In addition to marking values, the access egress QoS policy provides an option to define port-based queues and scheduling when per port queues are used for SAPs configured on access ports.
Users have an option to use either port-based egress queuing and shaping or SAP-based egress queuing and shaping for SAPs configured on access ports or hybrid ports. Use the configure system resource-profile qos port-scheduler-mode command on 7210 SAS-Mxp or the configure system global-res-profile qos port-scheduler-mode on the 7210 SAS-R6 and 7210 SAS-R12 to select the mode to be used for SAPs configured on all the ports of the node. When port-scheduler-mode is enabled, software uses 8 egress queues per access port and all the SAPs configured on the port will share the 8 egress queues for traffic sent out of that port. In this mode, SAPs configured on hybrid port shares the egress queues with network port traffic. Enabling port-scheduler-mode affects the behavior for all the SAPs configured on either access or hybrid port. That is, port-based egress queues is mutually exclusive to use of SAP-based egress queues. When port-scheduler-mode is enabled, per port egress queues are defined using the access egress policies.
Additionally, the marking values used to mark traffic from different forwarding classes is defined by the remark policy in the access egress policy. In other words, per SAP marking cannot be used when Port-based queuing mode is used. A remarking policy can be defined for each access egress policy and remarking is disabled by default. Only remarking policy of type dot1p, dot1p-lsp-exp-shared, dscp or dot1p-dscp can be used with access-egress policy. The following is the marking behavior with different remark policy types:
If the remark policy type is dot1p or dot1p-lsp-exp-shared, all traffic sent out of Layer 2 SAPs and Layer 3 SAPs configured on that port will have its Dot1p bits marked.
If the remark policy type is dscp, all traffic sent out of Layer 2 SAPs and Layer 3 SAPs configured on that port will have its IP DSCP bits marked (assuming Layer 2 SAPs are carrying IP traffic).
If remark policy is of type dot1p-dscp, all traffic sent out of Layer 2 SAPs and Layer 3 SAPs configured on that port will have its IP DSCP bits (assuming Layer 2 SAPs are carrying IP traffic) and Dot1p bits marked.
When port-scheduler-mode is disabled, per-SAP egress queues are available for use. Per-SAP egress queues are configured in the service egress policies.
On the 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12, when port-based queuing is enabled, RVPLS SAPs use the port-based egress queues for both unicast and BUM traffic; all the SAPs, including RVPLS SAPs, share the eight egress queues created per port.
Access egress QoS policies define egress queues and map forwarding class flows to queues, if port-scheduler-mode is enabled. In port-scheduler-mode, the system allocates 8 queues to access port egress by default. To define a basic access egress QoS policy, the following are required:
unique access egress QoS policy ID
QoS policy scope of template or exclusive
The parameters that can be configured for a queue are discussed in Queue parameters.
Optional service egress QoS policy elements include:
specify remark policy that defines IEEE 802.1p priority value remarking based on forwarding class
When port-based queuing is used, the FC to queue map is fixed and the queues priority is determined by the queue number, with higher queue number having the higher priority. The user can configure a queue to be a strict queue to change the scheduling behavior for that queue.
The following is a sample configuration output showing a default access-egress policy for the 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12.
*A:sasr_dutb>config>qos>access-egress# info detail
----------------------------------------------
description "Default Access egress QoS policy."
no remarking
remark 2
scope template
queue 1
adaptation-rule cir closest pir closest
rate cir 0 pir max
queue-mgmt "default"
queue-mode weighted
weight 1
exit
A:sasr_dutb>config>qos>access-egress#
Access egress QoS policy queue override
The following QoS policy queue parameters can be overridden using the configure>port>ethernet>access>egress>queue-override command. For command description details, see the "Port Ethernet QoS commands" section in the 7210 SAS-Mxp, R6, R12, S, Sx, T Interface Configuration Guide:
adaptation rule
Specifies the criteria used to compute the operational PIR and CIR values for this queue (min, max, or closest).
percent rate
Enables the configuration of queue PIR and CIR as a percentage of the egress port line rate rather that the values set by the rate parameter.
queue management
Associates a queue management policy with the queue.
queue mode
Sets strict or weighted mode for the queue.
rate
Defines the administrative PIR and CIR for the queue.
weight
Determines the proportion of available bandwidth that is given to this queue.
See ‟Port Ethernet QoS commands” in the 7210 SAS-Mxp, R6, R12, S, Sx, T Interface Configuration Guide for more information about the queue-override command.
Basic configurations
A basic access egress QoS policy must conform to the following:
have a unique access egress QoS policy ID
have a QoS policy scope of template or exclusive
Modifying access egress QoS queues on the 7210 SAS-R6 and 7210 SAS-R12
The following is a sample port-scheduler-mode policy configuration output for the 7210 SAS-R6 and 7210 SAS-R12.
*A:sasr_dutb>config>system>glob-res# info detail
----------------------------------------------
qos
no port-scheduler-mode
exit
----------------------------------------------
*A:sasr_dutb>config>system>glob-res#
Applying access egress QoS policies on the 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Apply access egress policies to the following entities:
Ethernet ports
A policy can be applied to the ports that are in access mode.
Ethernet ports
Use the following syntax to apply an access-egress policy to an Ethernet port.
config>port#
ethernet access egress
qos access-egress-policy-id
The following is a sample port configuration output for 7210 SAS-R6 and 7210 SAS-R12.
*A:Dut-B>config>port# ethernet mode access
*A:Dut-B>config>port# info detail
----------------------------------------------
shutdown
description "10/100/Gig Ethernet SFP"
ethernet
mode access
no enable-table-classification
access
no accounting-policy
no collect-stats
egress
qos 1
exit
exit
encap-type null
exit
Editing QoS policies
Existing policies and entries can be edited through the CLI or NMS. The changes are applied immediately to all services where the policy is applicable.
To prevent configuration errors perform the following:
Copy the policy to a work area.
Edit the policy.
Overwrite the original policy.
Deleting QoS policies
Every access Ethernet port is associated, by default, with the default access egress policy (policy-id 1). You can replace the default policy with a customer-configured policy, but you cannot entirely remove the policy from the port configuration. When you remove a non-default access egress policy, the association reverts to the default policy-id 1.
A QoS policy cannot be deleted until it is removed from all access ports where they are applied.
*A:7210-SAS-1>config>qos# no access-egress 30
MINOR: CLI Could not remove Access egress policy "30" because it is in use.
Removing a policy from the QoS configuration
config>qos# no access-egress policy-id
- Example:
config>qos# no access-egress 100 config>qos# no access-egress 1010
Access egress QoS policy command reference
Command hierarchies
Configuration commands for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
config
- qos
- access-egress policy-id [create]
- no access-egress policy-id
- [no] description description-string
- queue queue-id
- [no] adaptation-rule [cir adaptation-rule] [pir adaptation-rule]
- percent-rate cir cir-percent [pir pir-percent ]
- no percent-rate
- no queue-mgmt
- queue-mgmt name
- no queue-mgmt
- queue-mode queue-mode
- no queue-mode
- [no] rate cir cir-rate [pir pir-rate]
- no rate
- weight weight
- no weight
- scope {exclusive | template}
- remark policy-id
- no remark
- remarking
- no remarking
Show commands
show
- qos
- access-egress [policy-id] [association| detail]
Command descriptions
Generic commands
description
Syntax
description description-string
no description
Context
config>qos>access-egress
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command creates a text description stored in the configuration file for a configuration context.
The description command associates a text string with a configuration context to help identify the context in the configuration file.
The no form of this command removes any description string from the context.
Parameters
- description-string
Specifies a text string describing the entity. 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.
access-egress
Syntax
access-egress policy-id [create]
no access-egress policy-id
Context
config>qos
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
Commands in this context create or edit an access egress QoS policy. The policy can be applied to multiple access ports. The access egress policy is common to services (SAPs) that are all egressing on a particular port.
On 7210 SAS-Mxp, the access egress policy provides an option to configure remarking parameters and access port egress queue parameters on access port. The remarking parameters are used when SAP-based queuing is configured and port-based marking is in use. The remarking parameters and queue parameters are used when port-based queuing is configured. See Access egress QoS policies on 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE for more information.
Any changes made to an existing policy are applied to all access ports on which the policy is specified.
A policy cannot be deleted until it is removed from all access ports where it is applied. When an access-egress policy is removed from an access port, the access port revert to the default access-egress policy ID 1.
The no form of the policy associated the default policy with the access port.
Parameters
- policy-id
Specifies the value that uniquely identifies the access-egress policy.
- create
Keyword to create an access-egress policy. The create keyword requirement can be enabled or disabled in the environment>create context.
queue
Syntax
queue queue-id
Context
config>qos>access-egress
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
Commands in this context modify queue parameters associated with a particular queue. The queue is identifiable by the queue-id and FCs are mapped into the queues.See Forwarding class to queue-ID map for more information.
Parameters
- queue-id
Specifies the access egress queue ID associated with an FC.
remark
Syntax
remark policy-id
no remark
Context
config>qos>access-egress
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command specifies the remarking policy ID to use for marking packets on access egress (also known as, access port egress).
7210 SAS-Mxp supports two different access egress queuing modes. Marking functionality available in these two modes are different as described in the overview below. See Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for more information.
SAP-based queuing mode
The 7210 SAS-Mxp supports SAP-based marking for access SAPs and port-based egress marking on access ports. SAP-based marking is only supported for L2 SAPs, that is, SAPs configured in Epipe and VPLS service. If user enables remarking in the SAP egress policy attached to the SAP, then the remark policy configured is used to mark the packets sent out of the SAP. If remarking is disabled in the SAP egress policy attached to the SAP, then remark policy configured under the access-egress policy associated with the egress access port is used to mark all packets sent out of the L2 SAP configured on the access port. This is known as port-based marking. For more details refer to the details in the chapter above on Access Egress policies. section Access egress QoS policy for SAP-based queuing mode on 7210 SAS-Mxp.
Port-based Queuing Mode
When port-based queues are used, only per port egress marking is supported. In other words, per SAP marking cannot be used when Port-based queuing mode is used. For more details refer to the details in the chapter above on Access Egress policies, section Access egress QoS policy for port-based queuing mode on 7210 SAS-Mxp
The remarking policy ID must be associated with the appropriate access egress policy and remarking must be enabled in the access egress policy to enable marking of packets sent out of all SAPs configured on the access port. Only a remarking policy of the type dot1p, dscp, or dot1p-dscp is allowed to be used when the remark policy is associated with access egress.
See Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for more information.
The no form of this command removes the explicit association of the remark policy and associates the default remark policy. In other words, if remarking is enabled and no remark policy is executed, then the default remark policy is used to mark packets sent out. If no remark policy is executed and remarking is disabled, then packets are not remarked.
Parameters
- policy-id
Specifies the remark policy.
remarking
Syntax
no remarking
remarking
Context
config>qos>access-egress
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command enables the system to remark egress packets sent out of access ports.
When remarking is enabled, the remark policy configured in the QoS policy context is used to determine the FC to QoS bit mapping. For example, when remarking is enabled in the access egress QoS policy, the remark policy associated with access-egress QoS policy is used to determine the FC to dot1p mapping to use for marking packets sent out of access ports.
See Remark policies and Summary of remark policy and attachment points for 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12 for the remark policy that can be used to configure FC to priority bit markings in different QoS policies associated with different service entities.
See Access egress QoS policies on 7210 SAS-Mxp for more information.
The no form of this command disables remarking.
Default
no remarking
Access egress queue QoS policy commands
adaptation-rule
Syntax
adaptation-rule [cir adaptation-rule] [pir adaptation-rule]
no adaptation-rule
Context
config>qos>access-egress>queue
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command defines the method used by the system to derive the operational CIR and PIR rates when the queue is provisioned in hardware. For the cir and pir parameters, the system attempts to find the best operational rate depending on the defined constraint.
The no form of this command removes any explicitly defined constraints used to derive the operational CIR and PIR created by the application of the policy. When a specific adaptation-rule is removed, the default constraints for cir and pir apply.
Default
adaptation-rule pir closest cir closest
Parameters
- cir adaptation-rule
Specifies the adaptation rule and defines the constraints enforced when adapting the CIR rate defined using the queue queue-id rate command. The cir parameter requires a qualifier that defines the constraint used to derive the operational CIR rate for the queue. When the cir parameter is not specified, the default constraint applies. The max (maximum), min (minimum), and closest qualifiers are mutually exclusive. See Supported hardware rates and burst step sizes for CIR and PIR values on the 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-T for information about supported hardware step-size rates.
- pir adaptation-rule
Specifies the adaptation rule and defines the constraints enforced when adapting the PIR rate defined using the queue queue-id rate command. The pir parameter requires a qualifier that defines the constraint used when deriving the operational PIR rate for the queue. When the pir command is not specified, the default constraint applies. The max (maximum), min (minimum), and closest qualifiers are mutually exclusive. See Supported hardware rates and burst step sizes for CIR and PIR values on the 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-T for information about supported hardware step-size rates.
percent-rate
Syntax
percent-rate [cir cir-percent] [pir pir-percent]
no percent-rate
Context
config>qos>access-egress>queue
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command enables support for a queue’s PIR and CIR to be configured as a percentage of the egress port’s line rate (that is, the port limit). When the rates are expressed as a port limit, the actual rates used per instance of the queue will vary based on the port speed or the configured port egress rate. For example, when the same QoS policy is used on a 1-Gigabit and a 10-Gigabit Ethernet port, the queue’s rates will be 10 times greater on the 10 Gigabit port because of the difference in port speeds. This enables the same QoS policy to be used on SAPs on different ports instead of using different policies to modify a queue’s rate to get the same relative performance from the queue.
If the port’s speed changes after the queue is created, the queue’s PIR and CIR are recalculated based on the defined percentage value.
The rate and percent-rate commands override one another. If the current rate for a queue is defined using the percent-rate command and the rate command is executed, the percent-rate values are deleted. Similarly, the percent-rate command causes any rate command values to be deleted. A queue’s rate may dynamically be changed back and forth from a percentage to an explicit rate at anytime.
The no form of this command reverts the queue to its default shaping rate and CIR values. When no percent-rate is defined within an egress queue-override, the queue reverts to the PIR and CIR defined within the access egress QoS policy associated with the queue.
Parameters
- cir cir-percent
Specifies the queue’s CIR as a percentage dependent on the use of the port-limit.
- pir pir-percent
Specifies the queue’s PIR as a percentage dependent on the use of the port-limit.
queue-mgmt
Syntax
queue-mgmt name
no queue-mgmt
Context
config>qos>access-egress>queue
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command associates the specified queue management policy with this queue.
The queue management policy is used to specify the queue buffer parameters and queue slope policy parameters.
The no form of this command associates the default SAP egress queue management policy with this queue.
Parameters
- name
Specifies the name of the queue management policy, up to 32 characters.
queue-mode
Syntax
queue-mode queue-mode
no queue-mode
Context
config>qos>access-egress>queue
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command determines whether the queue operates in strict or weighted mode.
The no form of this command reverts the queue mode to the default.
Default
weighted
Parameters
- queue-mode
Specifies the mode of operation for the queue.
rate
Syntax
rate cir cir-rate [pir pir-rate]
no rate
Context
config>qos>access-egress>queue
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command defines the administrative Peak Information Rate (PIR) and the administrative Committed Information Rate (CIR) parameters for the queue. The PIR defines the maximum rate that the queue can transmit packets through the port. Defining a PIR does not necessarily guarantee that the queue can transmit at the intended rate. The actual rate sustained by the queue can be limited by over-subscription factors or available egress bandwidth. The CIR defines the rate at which the system prioritizes the queue over other queues competing for the same bandwidth.
The rate command can be executed at anytime, altering the PIR and CIR rates for all queues created on the access ports.
The max default specifies the amount of bandwidth in kilobits per second (thousand bits per second). The max value is mutually exclusive to the pir-rate value.
Queues with a cir-level cir-level parameter value of 8 are treated differently by the software than queues configured with different cir-level values. The PIR rate values configured for the cir-level 8 queues are ignored. Only the CIR rate value is used and PIR is set to the CIR value. In addition, when executing the no form of the rate command for a queue configured at cir-level 8, the default CIR (and PIR) value is set to 1. See the cir-level parameter description under the port-parent command for more information about the scheduler behavior for queues configured with a cir-level value of 8.
The no form of this command reverts all queues created with the queue ID by association with the QoS policy to the default PIR (max) and CIR (0) parameters.
Parameters
- cir-rate
Specifies the administrative CIR rate, in kilobits, for the queue. The cir parameter overrides the default administrative CIR used by the queue. When the rate command is executed, a valid CIR setting must be explicitly defined. When the rate command has not been executed or the cir parameter is not explicitly specified, the default CIR (0) is assumed. Fractional values are not allowed and must be given as a positive integer.
- pir-rate
Specifies the administrative PIR rate, in kilobits, for the queue. When the rate command is executed, a PIR setting is optional. When the rate command has not been executed, the default PIR of max is assumed.
Fractional values are not allowed and must be given as a positive integer.
The actual PIR rate is dependent on the queue adaptation-rule parameters and the actual hardware where the queue is provisioned.
weight
Syntax
[no] weight weight
Context
config>qos>access-egress
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command specifies the weight of the queue when the queue mode is set to weighted.
For queues configured in weighted mode, the CIR of the queues are met if bandwidth is available and the configured weights are considered in the PIR loop. The configured weight determines the proportion of available bandwidth that is given to this queue in comparison to other queues configured in weighted mode.
The no form of this command reverts the weight to the default.
Default
1
Parameters
- weight
Specifies the proportion of available bandwidth to be allocated to this queue relative to other queues.
scope
Syntax
scope {exclusive | template}
no scope
Context
config>qos>access-egress
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command configures the scope as exclusive or template. The policy’s scope cannot be changed if the policy is applied to multiple ports.
The no form of this command reverts the scope of the policy to the default.
Default
template
Parameters
- exclusive
Specifies that the policy can only be applied to one interface port. If a policy with an exclusive scope is assigned to a second interface, an error message is generated. If the policy is removed from the exclusive interface, it will become available for assignment to another exclusive interface. The system default policies cannot be put into the exclusive scope. An error will be generated if scope exclusive is executed in any policies with a policy ID equal to 1.
- template
Specifies that the policy can be applied to multiple ports on the router.
Show commands
access-egress
Syntax
access-egress [policy-id] [association | detail]
Context
show>qos
Platforms
7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12
Description
This command displays access egress QoS policy information.
Parameters
- policy-id
Displays the policy ID of the access-egress policy.
- association
Displays associations related to the specified access-egress policy.
- detail
Displays detailed policy information including the policy associations.
Output
The following output is an example of access egress QoS policy information, and Output fields: QoS access egress describes the output fields.
Sample outputA:Dut-A>show>qos# access-egress
===============================================================================
Access Egress Policies
===============================================================================
Policy-Id Scope Description
-------------------------------------------------------------------------------
1 Template Default Access egress QoS policy.
===============================================================================
A:Dut-A>show>qos#
A:Dut-A>show>qos# access-egress 1 detail
===============================================================================
QoS Access Egress
===============================================================================
-------------------------------------------------------------------------------
Policy-id : 1 Scope : Template
Remark : False Remark Pol Id: 2
Description : Default Access egress QoS policy.
-------------------------------------------------------------------------------
Queue Rates and Rules
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId CIR CIR Adpt Rule PIR PIR Adpt Rule
-------------------------------------------------------------------------------
Queue1 0 closest max closest
Queue2 0 closest max closest
Queue3 0 closest max closest
Queue4 0 closest max closest
Queue5 0 closest max closest
Queue6 0 closest max closest
Queue7 0 closest max closest
Queue8 0 closest max closest
-------------------------------------------------------------------------------
Queue Mode and Weight Details
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId Mode Weight
-------------------------------------------------------------------------------
Queue1 weighted 1
Queue2 weighted 1
Queue3 weighted 1
Queue4 weighted 1
Queue5 weighted 1
Queue6 weighted 1
Queue7 weighted 1
Queue8 weighted 1
-------------------------------------------------------------------------------
High Slope
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId State Start-Avg(%) Max-Avg(%) Max-Prob(%)
-------------------------------------------------------------------------------
Queue1 Down 70 90 75
Queue2 Down 70 90 75
Queue3 Down 70 90 75
Queue4 Down 70 90 75
Queue5 Down 70 90 75
Queue6 Down 70 90 75
Queue7 Down 70 90 75
Queue8 Down 70 90 75
-------------------------------------------------------------------------------
Low Slope
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
QueueId State Start-Avg(%) Max-Avg(%) Max-Prob(%)
-------------------------------------------------------------------------------
Queue1 Down 50 75 75
Queue2 Down 50 75 75
Queue3 Down 50 75 75
Queue4 Down 50 75 75
Queue5 Down 50 75 75
Queue6 Down 50 75 75
Queue7 Down 50 75 75
Queue8 Down 50 75 75
-------------------------------------------------------------------------------
Burst Sizes and Time Average Factor
-------------------------------------------------------------------------------
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QueueId CBS MBS Time Average Factor Queue-Mgmt
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Queue1 def def 7 default
Queue2 def def 7 default
Queue3 def def 7 default
Queue4 def def 7 default
Queue5 def def 7 default
Queue6 def def 7 default
Queue7 def def 7 default
Queue8 def def 7 default
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Associations
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Port-id : 1/1/21
Port-id : 1/1/23
Port-id : 1/1/25
Port-id : 1/1/26
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A:Dut-A>show>qos#
| Label | Description |
|---|---|
Policy-Id |
The ID that uniquely identifies the policy |
Remark |
True — Remarking is enabled for all the Dot1q-tagged packets that egress the ports on which the sap-egress QoS policy is applied and remarking is enabled False — Remarking is disabled for the policy |
Remark Pol Id |
Displays the policy ID of the remarking policy |
Scope |
Exclusive — Implies that this policy can be applied only to a single access egress port Template — Implies that this policy can be applied to multiple access ports on the router |
Description |
A text string that helps identify the policy’s context in the configuration file |
Queue Rates and Rules |
|
QueueId |
Displays the Queue identifier associated with the sap-egress QoS policy |
CIR |
Specifies the administrative Committed Information Rate (CIR) parameters for the queue The CIR defines the rate at which the system prioritizes the queue over other queues competing for the same bandwidth. |
CIR Adpt Rule |
min — The operational CIR for the queue will be equal to or greater than the administrative rate specified using the rate command max — The operational CIR for the queue will be equal to or less than the administrative rate specified using the rate command closest — The operational CIR for the queue will be the rate closest to the rate specified using the rate command without exceeding the operational PIR |
PIR |
Specifies the administrative Peak Information Rate (PIR) parameters for the queue The PIR defines the maximum rate that the queue can transmit packets through the access port. |
PIR Adpt Rule |
min — The operational PIR for the queue will be equal to or greater than the administrative rate specified using the rate command max — The operational PIR for the queue will be equal to or less than the administrative rate specified using the rate command closest — The operational PIR for the queue will be the rate closest to the rate specified using the rate command |
High Slope/Low slope |
|
QueueId |
Displays the Queue identifier associated with the sap-egress QoS policy |
State |
Displays the state of the queue The state of the queue can be either ‟Up” or ‟Down” |
Start Avg |
Specifies the low priority or high priority RED slope position for the shared buffer average utilization value where the packet discard probability starts to increase above zero |
Max Avg |
Specifies the percentage of the shared buffer space for the buffer pool at which point the drop probability becomes ‟1” This parameter is expressed as a decimal integer. |
Max Prob |
Specifies the high priority RED slope position for the maximum non-one packet discard probability value before the packet discard probability rises directly to one |
Burst Sizes and Time Average Factor |
|
QueueId |
Displays the Queue identifier associated with the sap-egress QoS policy |
CBS |
Displays the configured CBS value |
MBS |
Displays the configured MBS value |
Time Average Factor |
Displays the value of the time average factor in use |
Queue-Mgmt |
Displays the Queue management policy in use |