Configuration Guide User guide

FastIron Configuration Guide 793
53-1002494-02
VLAN groups and virtual routing interface group
The <vlan-id> to <vlan-id> parameters specify a contiguous range (a range with no gaps) of
individual VLAN IDs. Specify the low VLAN ID first and the high VLAN ID second. You can add or
remove up to 256 VLANs at a time. To add or remove more than 256 VLANs, do so using separate
commands. For example, to remove 512 VLANs from VLAN group 1, enter the following commands.
Brocade(config-vlan-group-1)# remove-vlan 400 to 654
Brocade(config-vlan-group-1)# remove-vlan 655 to 910
Displaying information about VLAN groups
To display VLAN group configuration information, use the show vlan-group command.
Syntax: show vlan-group [<group-id>]
The <group-id> specifies a VLAN group. If you do not use this parameter, the configuration
information for all the configured VLAN groups is displayed.
Configuring a virtual routing interface group
A virtual routing interface group allows you to associate the same IP subnet interface with multiple
port-based VLANs. For example, if you associate a virtual routing interface group with a VLAN
group, all the VLANs in the group have the IP interface of the virtual routing interface group.
Configuration notes and feature limitations for
virtual routing interface group
• When you configure a virtual routing interface group, all members of the group have the same
IP subnet address. This feature is useful in collocation environments where the device has
many IP addresses and you want to conserve the IP address space.
• The group-router-interface command creates router interfaces for each VLAN in the VLAN
group by using the VLAN IDs of each of the VLANs as the corresponding virtual interface
number. Therefore, if a VLAN group contains VLAN IDs greater than the maximum virtual
interface number allowed, the group-router-interface command will be rejected.
CLI syntax for virtual routing interface group
To configure a virtual routing interface group, enter commands such as the following.
Brocade(config)# vlan-group 1
Brocade(config-vlan-group-1)# group-router-interface
Brocade(config-vlan-group-1)# exit
Brocade(config)# interface group-ve 1
Brocade(config-vif-group-1)# ip address 10.10.10.1/24
Brocade# show vlan-group
vlan-group 1 vlan 2 to 20
tagged ethe 1/1 to 1/2
!
vlan-group 2 vlan 21 to 40
tagged ethe 1/1 to 1/2
!