474 PowerConnect B-Series FCX Configuration Guide53-1002266-01Configuring VLAN groups and virtual routing interface groups13Syntax: show vlan-group []The specifies a VLAN group. If you do not use this parameter, the configurationinformation for all the configured VLAN groups is displayed.Configuring a virtual routing interface groupA virtual routing interface group allows you to associate the same IP subnet interface with multipleport-based VLANs. For example, if you associate a virtual routing interface group with a VLANgroup, all the VLANs in the group have the IP interface of the virtual routing interface group.Configuration notes and feature limitations• When you configure a virtual routing interface group, all members of the group have the sameIP subnet address. This feature is useful in collocation environments where the device hasmany IP addresses and you want to conserve the IP address space.• The group-router-interface command creates router interfaces for each VLAN in the VLANgroup by using the VLAN IDs of each of the VLANs as the corresponding virtual interfacenumber. Therefore, if a VLAN group contains VLAN IDs greater than the maximum virtualinterface number allowed, the group-router-interface command will be rejected.CLI syntaxTo configure a virtual routing interface group, enter commands such as the following.PowerConnect(config)# vlan-group 1PowerConnect(config-vlan-group-1)# group-router-interfacePowerConnect(config-vlan-group-1)# exitPowerConnect(config)# interface group-ve 1PowerConnect(config-vif-group-1)# ip address 10.10.10.1/24These commands enable VLAN group 1 to have a group virtual routing interface, then configurevirtual routing interface group 1. The software always associates a virtual routing interface grouponly with the VLAN group that has the same ID. In this example, the VLAN group ID is 1, so thecorresponding virtual routing interface group also must have ID 1.Syntax: group-router-interfaceSyntax: interface group-ve Syntax: [no] ip address [secondary]orSyntax: [no] ip address / [secondary]PowerConnect# show vlan-groupvlan-group 1 vlan 2 to 20tagged ethe 1/1 to 1/2!vlan-group 2 vlan 21 to 40tagged ethe 1/1 to 1/2!