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VLAN C
ONFIGURATION
3-195
all other ports (except for those VLANs explicitly forbidden on this
port).
- If ingress filtering is enabled and a port receives frames tagged for
VLANs for which it is not a member, these frames will be discarded.
- Ingress filtering does not affect VLAN independent BPDU frames,
such as GVRP or STP. However, they do affect VLAN dependent
BPDU frames, such as GMRP.
• GVRP Status – Enables/disables GVRP for the interface. GVRP must
be globally enabled for the switch before this setting can take effect. (See
“Displaying Bridge Extension Capabilities” on page 3-19.) When
disabled, any GVRP packets received on this port will be discarded and
no GVRP registrations will be propagated from other ports. (Default:
Disabled)
• GARP Join Timer
16
– The interval between transmitting requests/
queries to participate in a VLAN group. (Range: 20-1000 centiseconds;
Default: 20)
• GARP Leave Timer – 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)
• GARP LeaveAll Timer – 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)
• Mode – Indicates VLAN membership mode for an interface. (Default:
Hybrid)
- 1Q Trunk – Specifies a port as an end-point for a VLAN trunk. A
trunk is a direct link between two switches, so the port transmits
tagged frames that identify the source VLAN. Note that frames
belonging to the port’s default VLAN (i.e., associated with the PVID)
are also transmitted as tagged frames.
16. Timer settings must follow this rule: 2 x (join timer) < leave timer < leaveAll timer