User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
6-17
G
ENERIC
VLAN R
EGISTRATION
P
ROTOCOL
• IPX address (if configured)
• STPD information
• Protocol information
• QoS profile information
• Ports assigned
• Tagged/untagged status for each port
• How the ports were added to the VLAN (manually or by GVRP)
Use the
detail
option to display the detailed format.
To display protocol information, use the following command:
show protocol {<protocol>}
This
show
command displays protocol information, including the following:
• Protocol name
• List of protocol fields
• VLANs that use the protocol
G
ENERIC
VLAN R
EGISTRATION
P
ROTOCOL
The Generic VLAN Registration Protocol (GVRP) allows a LAN device to signal other
neighboring devices that it wishes to receive packets for one or more VLANs. The
GVRP protocol is defined as part of the IEEE 802.1Q Virtual LANs draft standard. The
main purpose of the protocol is to allow switches to automatically discover some of the
VLAN information that would otherwise have to be manually configured in each
switch. GVRP can also be run by network servers. These servers are usually configured
to join several VLANs, and then signal the network switches of the VLANs they want
to join.
Figure 6-7 illustrates a network using GVRP.