To create an L3 network interface on a routing instance
Purpose
Perform this procedure to create L3 network interfaces on a routing instance. This procedure provides an example for configuring a network interface on a 7950 XRS with IPv6 enabled.
Note: The steps in this procedure depend on the device type, device version, and the parameter options that are selected during configuration. If a step in this procedure does not apply to the interface type that you are configuring on your device, proceed to the next applicable step.
An L3 interface on an OmniSwitch enables IP routing on a VLAN. Without an L3 interface, traffic is bridged within the VLAN or across connections to the same VLAN on other switches.
See To configure L3 network interfaces to re-configure a L3 network interface after it is created. See Workflow to configure NE routing and forwarding for information about how to configure other L3 network interfaces on routing instances.
You can create the following L3 interface types:
Steps
1 |
In the navigation tree routing view, expand Network→NE→Routing Instance. |
2 |
Right-click on the routing instance icon and choose Create Interface. The Create Network Interface step form opens. |
3 |
Configure the parameters on the Define General Properties form as required. When you create an unnumbered MPLS-TP instance, you must configure a Static ARP in Step 11 before you can turn the Administrative State parameter to Up. |
4 |
Click Next. Perform one of the following as required:
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5 |
Click Next to associate the L3 interface with a physical port. The Select Port form open. Perform the following steps:
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6 |
Click Next to associate a network policy for the interface. The Select Network Policy form opens. Network policies are used to determine QoS settings based on the packet CoS bits on the ingress and egress of the network. Note: The form name and policy selection options vary depending on the NE. See Chapter 50, QoS policies for information about network policies. Perform the following steps:
If you are configuring an L3 access interface for 7210 SAS or 7250 IXR nodes, go to Step 7 . Otherwise, go to Step 8. |
7 |
Click Next to configure accounting statistics collection for the interface. The Select Accounting Policy form opens. Select an accounting policy and configure the required parameters. |
8 |
Click Next to assign ACL filters to the interface. The Select ACL Filters form opens. ACL filters are used to filter out IP traffic that matches user-defined criteria defined in ACL IP filter or ACL IPv6 policies. Perform the following steps:
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9 |
Click Next. The Configure ICMP form opens. Configure the ICMP parameters. |
10 |
Click Next. If the IPv6 Allowed parameter is enabled on the Define General Properties form, the Configure ICMPv6 form opens. Configure the IPv6 parameters as required. |
11 |
Click Next. The Configure ARP form opens. Perform the following steps:
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12 |
Click Next. The Configure Proxy ARP form opens. Configure the parameters as required. Proxy ARP allows a device, such as a router, to answer ARP requests that are intended for another device. This allows a device to reach a remote subnet without configuring routes to the subnet or a default gateway device. |
13 |
Click Next. The Configure Proxy ARP Policies form opens. Configure the parameters as required. Note: You must not leave an empty policy parameter between two configured policy parameters. For example, do not configure the Policy 1 and Policy 3 parameters and leave the Policy 2 parameter unconfigured. The NFM-P reorders the policies and moves the policy entered for the Policy 3 parameter to the Policy 2 parameter. |
14 |
Click Next. If the IPv6 Allowed parameter is enabled on the Define General Properties form, the Configure Neighbor Discovery form opens. Perform the following steps: |
15 |
Click Next. The Configure Proxy Neighbor Discovery form opens. Perform the following steps:
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16 |
Click Next. The Configure Secure Neighbor Discovery form opens. Configure the parameters as required. |
17 |
Click Next. If NTP or SNTP is enabled on the NE, the Configure NTP form opens. Configure the Broadcast parameter. Note: When the Broadcast parameter is enabled, a time protocol such as NTP or SNTP must be enabled and configured on the device, or the device ignores broadcast time packets received on the interface. See Chapter 8, Device commissioning and management for information about configuring NTP or SNTP on a device. |
18 |
Click Next. The Configure DHCP - General form opens. To configure IPv4 DHCP for the interface: Perform the following steps:
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19 |
Click Next. The Configure VRRP form opens. Click Create to add a VPPR instance. See To create and configure a VRRP instance to create a VRRP instance. VRRP instances are members of a virtual router that provide backup if a router fails in a statically configured LAN. VRRP instances are created from network interfaces on a router, either as a master owner through which IP packets are routed before a failover, or as a backup non-owner that assumes the packet-forwarding (master) role after a failover. Before you create or add a VRRP instance to a virtual router, ensure that the master and backup interfaces have the same VRID and occupy the same subnet. See To create and configure a VRRP instance to create a VRRP instance. |
20 |
Click Next. If the IPv6 Allowed parameter is enabled on the Define General Properties form, the Configure IPv6 VRRP form opens. Click Create to add a VPPR IPv6 instance. See To create and configure a VRRP instance to create a VRRP instance. |
21 |
Click Next. The Configure Router Advertisement form opens. Perform the following steps:
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22 |
Click Next. The Unicast RPF form opens. Configure the parameters as required. The URPF Check State IPv6 and URPF Check Mode IPv6 parameters are only configurable when the IPv6 Allowed parameter is enabled is enabled on the Define General Properties form. |
23 |
Click Next. The Configure DHCP - General form opens. Configure the parameters as required to configure IPv4 DHCP for the interface. Note: The Remote ID String parameter is configurable when the Remote ID parameter is set to Remote IDString. |
24 |
Click Next. The Configure DHCP - Server form opens. Configure the Server 1 through Server 8 parameters. |
25 |
Click Next. The Configure Network Domain form opens. Click Add Network Domain to add a network domain to a network interface. See To create a network domain to create a network domain. |
26 |
Click Next. The Configure BFD form opens. To configure Bidirectional Forwarding Detection for the interface: Perform the following steps:
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27 |
Click Next. If the IPv6 Allowed parameter is enabled on the Define General Properties form, the Configure IPv6 BFD form opens. Configure the parameters as required. |
28 |
Click Next. The Select Security form opens. Click Select to assign a DoS protection policy or DDoS protection policy to a network interface. See DoS protection on L3 network interfaces or DDoS protection on network and access interfaces in this chapter for more information. |
29 |
Click Next. The Configure Cflowd Sampling form opens. Note: You must enable cflowd globally on an NE before you can configure cflowd collectors; see To enable and configure global Cflowd sampling on an NE . You can configure cflowd sampling for unicast and multicast traffic on a routing network interface; up to two cflowd sampling objects can be configured under the parent interface, one for unicast and one for multicast. Perform the following steps: |
30 |
Click Finish. The Summary form opens. |
31 |
Enable the View the newly created Network Interface parameter to view the interface configuration after closing the form. |
32 |
Save your changes and close the form. End of steps |