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Configuring virtual routing interfaces – Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Switching Configuration Guide

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Configuring virtual routing interfaces

7

NOTE

Dynamically adding ports to the protocol-based VLANs are not supported. Ports within the
port-based VLAN can only be added as static ports to the protocol-based VLAN. The
running-configuration will show “no dynamic” under ip-proto name name to indicate that the ports
are added as static ports to the protocol-based VLAN.

Configuring virtual routing interfaces

The Brocade device sends Layer 3 traffic at Layer 2 within a protocol-based VLAN. However, Layer 3
traffic from one protocol-based VLAN to another must be routed. If you want the device to be able to
send Layer 3 traffic from one protocol-based VLAN to another on the same device, you must
configure a virtual routing interface on each protocol-based VLAN, then configure routing
parameters on the virtual routing interfaces.

A virtual routing interface is a logical routing interface that the Brocade device uses to route Layer
3 protocol traffic between protocol-based VLANs. It is a logical port on which you can configure
Layer 3 routing parameters.

For example, to enable a Brocade device to route IP traffic from one IP protocol VLAN to another,
you must configure a virtual routing interface on each IP protocol VLAN, then configure the
appropriate IP routing parameters on each of the virtual routing interfaces.

Example

Brocade(config)# vlan 2

Brocade(config-vlan-2)# tagged e 1/1 to 1/2

Brocade(config-vlan-2)# router-interface ve 1

The Brocade device can locally route IP packets between VLANs that are defined within a single
device.

If you do not need to further partition the port-based VLAN into protocol-based VLANs, you can
define a single virtual routing interface at the port-based VLAN level and enable routing on a single
virtual routing interface.

Brocade(config)# vlan 2

Brocade(config-vlan-2)# tagged e 1/1 to 1/2

Brocade(config-vlan-2)# router-interface ve 2

Brocade(config-vlan-2)# exit

Brocade(config)# interface ve 2

Brocade(config-ve-2)# ip address 10.1.1.1/24

Syntax: router-interface ve ve-number

Enter 1 to the maximum number of virtual routing interfaces supported on the device for
ve-number.