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Virtual Routers

ExtremeWare XOS 11.3 Concepts Guide

246

Configuring the Routing Protocols and VLANs

Once the virtual router is created, the ports are added, and support for any needed routing protocols is

added, you can configure the virtual router. To simplify configuring the user virtual routers, the concept

of a virtual router configuration domain was added (instead of adding a virtual router keyword to

every command in every routing protocol). Virtual router commands are applied to the current

configuration domain. The virtual router commands consist of all the BGP, OSPF, PIM and RIP

commands, as well as the

create vlan and delete vlan commands. Other commands apply to the

switch as a whole.

To enter a virtual router configuration domain, use the following command:

virtual-router {<vr-name>}

For example, to enter the configuration domain for the virtual router helix, your CLI session would look

similar to this:

* BD10K.13 # virtual-router helix

* (vr helix) BD10K.14 #

The CLI prompt displays the virtual router configuration domain.

Use the

virtual-router command with no virtual router name, or use the name VR-Default to return

to the default configuration domain.

Now you can create VLANs, using the following command:

create vlan <vlan_name> {vr <vr-name>}

If you do not specify a virtual router in the create vlan command, the VLAN is created in the virtual

router of the current configuration domain.

NOTE

All VLAN names and VLAN IDs on a switch must be unique, regardless of the virtual router they are created in. You

cannot have two VLANs with the same name, even if they are in different virtual routers.

You can also configure routing protocols, by using the standard ExtremeWare XOS commands. The

routing configurations of the different virtual routers are independent of each other.

Virtual Router Configuration Example

In the following example:

● The user virtual router helix is created

● Ports are removed from the VLAN Default and the virtual router VR-Default

● Ports are added to the virtual router helix

● OSPF is added to the virtual router helix

● The configuration domain is set to helix, so that subsequent virtual router commands affect the

virtual router helix

Extreme Networks ExtremeWare XOS Guide User Manual

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