C
HAPTER
6
| VLAN Configuration
IEEE 802.1Q VLANs
– 203 –
CONFIGURING
DYNAMIC VLAN
REGISTRATION
Use the VLAN > Dynamic page to enable GVRP globally on the switch, or to
enable GVRP and adjust the protocol timers per interface.
CLI REFERENCES
â—† "GVRP and Bridge Extension Commands" on page 1126
â—† "Configuring VLAN Interfaces" on page 1133
PARAMETERS
These parameters are displayed:
Configure General
◆ GVRP Status – GVRP defines a way for switches to exchange VLAN
information in order to register VLAN members on ports across the
network. VLANs are dynamically configured based on join messages
issued by host devices and propagated throughout the network. GVRP
must be enabled to permit automatic VLAN registration, and to support
VLANs which extend beyond the local switch. (Default: Disabled)
Configure Interface
◆ Interface – Displays a list of ports or trunks.
◆ Port – Port Identifier. (Range: 1-28)
◆ Trunk – Trunk Identifier. (Range: 1-12)
◆ GVRP Status – Enables/disables GVRP for the interface. GVRP must be
globally enabled for the switch before this setting can take effect (using
the Configure General page). When disabled, any GVRP packets
received on this port will be discarded and no GVRP registrations will be
propagated from other ports. (Default: Disabled)
GVRP cannot be enabled for ports set to Access mode (see "Adding
Static Members to VLANs" on page 198).
◆ GVRP Timers – Timer settings must follow this rule:
3 x (join timer) < leave timer < leaveAll timer
â–
Join – The interval between transmitting requests/queries to
participate in a VLAN group. (Range: 20-1000 centiseconds;
Default: 20)
â–
Leave – The interval a port waits before leaving a VLAN group. This
time should be set to more than twice the join time. This ensures
that after a Leave or LeaveAll message has been issued, the
applicants can rejoin before the port actually leaves the group.
(Range: 60-3000 centiseconds; Default: 60)
â–
LeaveAll – The interval between sending out a LeaveAll query
message for VLAN group participants and the port leaving the
group. This interval should be considerably larger than the Leave
Time to minimize the amount of traffic generated by nodes rejoining
the group. (Range: 500-18000 centiseconds; Default: 1000)
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