HP 2500 manual Switch D Gvrp On, To allow tagged packets to pass through, Tagged, Switch C Gvrp On

Configuring Advanced Features

GVRP

Note that if a static VLAN is configured on at least one port of a switch, and that port has established a link with another device, then all other ports of that switch will send advertisements for that VLAN.

For example, in the following figure, Tagged VLAN ports on switch “A” and switch “C”, below advertise VLANs 22 and 33 to ports on other GVRP-enabled switches that can dynamically join the VLANs.

Switch “A” GVRP On

Tagged

VLAN 22

Switch “B” (No GVRP)

1 5

Switch “C”

GVRP On

Dynamic

VLAN 22

11

Tagged

VLAN 33

12

Switch “D”

GVRP On

Switch “C”:

Port 5 dynamically joined VLAN 22.. Ports 11 and 12 belong to Tagged VLAN 33.

2Switch “E” GVRP On

Dynamic

VLAN 33

Features Configuring Advanced

Tagged

VLAN 22

Dynamic

VLAN 33

3

7Dynamic VLAN 22

Dynamic 6

VLAN 22

Switch “D”:

Port 3 dynamically joined VLAN 33.

Port 6 dynamically joined VLAN 22.

Switch “E”:

Port 2 dynamically joined VLAN 33. Lower port dynamically joined VLAN 22.

	Figure 9-58. Example of GVRP Operation
N o t e	A port can learn of a dynamic VLAN through devices that are not aware of
	GVRP (Switch “B”, above). VLANs must be disabled in GVRP-unaware devices
	to allow tagged packets to pass through.

A GVRP-aware port receiving advertisements has these options:

■If there is not already a static VLAN with the advertised VID on the receiving port, then dynamically create a VLAN with the same VID as in the advertisement, and begin moving that VLAN’s traffic.

9-79