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52-1
Chapter 52: VLAN Commands
A VLAN is a group of ports that can be located anywhere in the network, but
communicate as though they belong to the same physical segment. This section
describes commands used to create VLAN groups, add port members, specify how
VLAN tagging is used, and enable automatic VLAN registration for the selected
interface.
GVRP and Bridge Extension Commands
GARP VLAN Registration Protocol defines a way for switches to exchange VLAN
information in order to automatically register VLAN members on interfaces across
the network. This section describes how to enable GVRP for individual interfaces
and globally for the switch, as well as how to display default configuration settings
for the Bridge Extension MIB.
Table 52-1 VLAN Commands
Command Groups Function Page
GVRP and Bridge Extension Configures GVRP settings that permit automatic VLAN learning;
shows the configuration for bridge extension MIB
52-1
Editing VLAN Groups Sets up VLAN groups, including name, VID and state 52-5
Configuring VLAN
Interfaces
Configures VLAN interface parameters, including ingress and egress
tagging mode, ingress filtering, PVID, and GVRP
52-7
Configuring 802.1Q
Tunneling
Configures IEEE 802.1Q tunneling (QinQ) to segregate and preserve
customer VLAN IDs for traffic crossing the service provider network
52-13
Displaying VLAN
Information
Displays VLAN groups, status, port members, and MAC addresses 52-16
Table 52-2 GVRP and Bridge Extension Commands
Command Function Mode Page
bridge-ext gvrp Enables GVRP globally for the switch GC 52-2
show bridge-ext Shows the global bridge extension configuration PE 52-2
switchport gvrp Enables GVRP for an interface IC 52-3
switchport forbidden vlan Configures forbidden VLANs for an interface IC 52-12
show gvrp configuration Displays GVRP configuration for the selected interface NE, PE 52-3
garp timer Sets the GARP timer for the selected function IC 52-4
show garp timer Shows the GARP timer for the selected function NE, PE 52-5