7
Mapping QoS on the Switch
The picture above shows the default priority setting for the Switch.
Class-1 has the higher priority than Class-0 on the Switch. In order
to implement QoS, the user is required to instruct the Switch to
examine the header of a packet to see if it has the proper identifying
tag tagged. Then the user may forward these tagged packets to
designated queues on the Switch where they will be emptied, based
on priority.
"The untagged pkt will follow the priority 0 to work (i.e. class 0)."
Understanding QoS
The Switch has two priority queues labeled as 1, higher queue and 0,
lower queue. The eight priority tags, specified in IEEE 802.1p are
mapped to the Switch's priority tags as follows:
Priority 0 is assigned to the Switch's Q0 queue.
Priority 1 is assigned to the Switch's Q0 queue.
Priority 2 is assigned to the Switch's Q0 queue.
Priority 3 is assigned to the Switch's Q0 queue.
Priority 4 is assigned to the Switch's Q1 queue.
Priority 5 is assigned to the Switch's Q1 queue.
Priority 6 is assigned to the Switch's Q1 queue.
Priority 7 is assigned to the Switch's Q1 queue.
