beautypg.com

Fsx-a – Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual

Page 382

background image

FIGURE 84 Routing between protocol-based VLANs

To configure the Layer 3 VLANs and virtual routing interfaces on the FSX Layer 3 Switch in the above
figure, use the following procedure.

Configuring Layer 3 VLANs and virtual routing interfaces on the FSX-A

Enter the following commands to configure FSX-A. The following commands enable OSPF or RIP
routing.

device>en

No password has been assigned yet...

device# configure terminal

device(config)# hostname FSX-A

device-A(config)# router ospf

device-A(config-ospf-router)# area 0.0.0.0 normal

Please save configuration to flash and reboot.

device-A(config-ospf-router)#

The following commands create the port-based VLAN 2. In the previous example, an external FSX
defined the router interfaces for VLAN 2. With ISR, routing for VLAN 2 is done locally within each FSX.
Therefore, there are two ways you can solve this problem. One way is to create a unique IP subnet
and IPX network VLAN, each with its own virtual routing interface and unique IP or IPX address within
VLAN 2 on each FSX. In this example, this is the configuration used for VLAN 3. The second way is to
split VLAN 2 into two separate port-based VLANs and create a virtual router interface within each port-
based VLAN. Later in this example, this second option is used to create a port-based VLAN 8 to show
that there are multiple ways to accomplish the same task with ISR.

You also need to create the Other-Protocol VLAN within port-based VLAN 2 and 8 to prevent
unwanted protocols from being Layer 2 switched within port-based VLAN 2 or 8. Note that the only
port-based VLAN that requires STP in this example is VLAN 4. You will need to configure the rest of
the network to prevent the need to run STP.

device-A(config-ospf-router)# vlan 2 name IP-Subnet_10.1.2.0/24

device-A(config-vlan-2)# untagged ethernet 1 to 4

device-A(config-vlan-2)# no spanning-tree

device-A(config-vlan-2)# router-interface ve1

device-A(config-vlan-2)# other-proto name block_other_protocols

Configuring Layer 3 VLANs and virtual routing interfaces on the FSX-A

382

FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide

53-1003086-04