Leave Time

60

The interval (centiseconds) a port waits before leaving a 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 re-join before the port actually leaves the group.

Leave All Time

1000

The interval (centiseconds) between sending out a LeaveAll query

 

 

message for 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.

1:The default values for the GARP timers are independent of the media access method or data rate. These values should not changed unless you are experiencing some difficulties with GMRP or GVRP registration/deregistration.

Parameter

Default

Description

VLAN and Priority

These fields set the default values for VLANs, port priority, GVRP and

 

 

GMRP.

Port VID

1

The VLAN ID assigned to untagged frames received on this port.

Port Default

0

Set the default ingress priority to any value beneath the priority threshold

Priority *2

 

to specify the low priority queue, or to any value equal to or above this

 

 

threshold to specify the high priority queue.

VLAN Tagging Layer 2 -

*3

Rx All,

Tx All

Multilayer -

Rx All,

Tx Untag

Indicates whether or not VLAN tags will be included on frames passing through this port. The options include:

Rx All:

Accepts all frames, tagged or untagged.

Rx Untag: Only accepts untagged frames.

Tx All:

If PVID and frame tag are same, sends tagged frame,

otherwise sends untagged.

Tx Untag: Sends only untagged frames.

2:The switch supports Quality of Service (QoS) by using two or four priority queues, with Weighted Fair Queuing for each port. Inbound frames that do not have VLAN tags are tagged with the input port’ s default ingress user priority, and then placed in the appropriate priority queue at the output port. The default priority for all ingress ports is zero. Therefore, any inbound frames that do not have priority tags will be placed in the low priority queue of the output port. (Note that if the output port is an untagged member of the associated VLAN, these frames are stripped of all VLAN tags prior to transmission.)

3:If you want to create a small port-based VLAN for just one or two switches, you can assign ports to the same untagged VLAN (and use a separate connection where a VLAN crosses the switches). However, to participate in a VLAN group that extends beyond this switch, we recommend using the VLAN ID for that group (using VLAN tagging for Layer 2 mode, or a common PVID for multilayer mode).

When operating the switch in Layer 2 mode, ports assigned to a large VLAN group that crosses several switches must use VLAN tagging. But when operating in multilayer mode, this switch does not currently support tagging, so you should set the PVID to the same value at both ends of the link (if the device you

WGS3 Layer 3 Switch User’s Manual

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