SMC Networks TigerAccess SMC7816M Manuel d'utilisateur télécharger pdf (Page 346)

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101

VLAN C

ONFIGURATION

13-16

- If ingress filtering is disabled and a port receives frames tagged for

VLANs for which it is not a member, these frames will be flooded to

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 4-9.) 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

– 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

19. Timer settings must follow this rule: 2 x (join timer) < leave timer < leaveAll timer

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SMC Networks TigerAccess SMC7816M Manuel d'utilisateur Page 346

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