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Port
Default
Priority²
0
Set the default ingress priority to any value beneath the priority
threshold (chapter 2 “Configuring Global Bridge Setting”) to
specify the low priority queue, or to any value equal to or above
this threshold to specify the high priority queue.
VLAN
Tagging³
Layer 2 -
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.
1. The default values for the GARP timers are independent of the media access
method or data rate. These values should not be changed unless you are
experiencing difficulties with GMRP or GVRP registration / deregistration.
2. This switch supports Quality of Service (QoS) by using two 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, (by 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 are attaching
to is VLAN-aware), and configure an IP interface for this VLAN if you need to
connect it to other groups. (This limitation will be removed for future firmware
versions.)
Parameter
Default Description
GVRP Enabled
Enables
or
disables GVRP for this port. When disabled, any
GVRP packets received on this port will be discarded and no
GVRP registrations will be propagated from other ports.
Note that GVRP must be enabled globally for the switch before
this setting can take effect. (See “Configuring Global Bridge
Settings” on chapter 2.)
