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C
ONFIGURING
THE
S
WITCH
2-78
This switch uses Weighted Round-Robin as the default mode for
each port. Up to 8 separate traffic classes are defined in IEEE
802.1p. The default priority levels are assigned according to
recommendations in the IEEE 802.1p standard as shown in the
following table.
Inbound frames that do not have VLAN tags are tagged with a
default service priority of zero, and placed in queue 1 at the
output port. Therefore, any inbound frames that do not have
priority tags will be placed in queue 1 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.) However, if the incoming frame is an IEEE 802.1Q
VLAN tagged frame, the IEEE 802.1p User Priority bits will be used.
Setting the Queue Mode
You can set the queue mode to strict priority or Weighted
Round-Robin (WRR) for the four class of service (CoS) priority
queues. The default queue mode is WRR.
Queue
0123
Priority
0
1
2
3
4
5
6
7
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