Network ingress traffic can be classified in up to eight different forwarding classes, which are served by 16 queues (eight queues for unicast traffic and eight queues for multicast (BMU) traffic). Each queue serves at least one of the eight forwarding classes that are identified by the incoming EXP bits. These queues are automatically created by the 7705 SAR. Table: Default Network Ingress QoS Policy shows the default network QoS policy for the 16 CoS queues.
The value for CBS and MBS is a percentage of the size of the buffer pool for the adapter card. MBS can be shared across queues, which allows overbooking to occur.
Queue /FC |
CIR (%) |
PIR (%) |
CBS (%) |
MBS (%) |
|---|---|---|---|---|
Queue-1/BE |
0 |
100 |
0.1 |
5 |
Queue-2/L2 |
25 |
100 |
0.25 |
5 |
Queue-3/AF |
25 |
100 |
0.75 |
5 |
Queue-4/L1 |
25 |
100 |
0.25 |
2.5 |
Queue-5/H2 |
100 |
100 |
0.75 |
5 |
Queue-6/EF |
100 |
100 |
0.75 |
5 |
Queue-7/H1 |
10 |
100 |
0.25 |
2.5 |
Queue-8/NC |
10 |
100 |
0.25 |
2.5 |
Queue-9/BE |
0 |
100 |
0.1 |
5 |
Queue-10/L2 |
5 |
100 |
0.1 |
5 |
Queue-11/AF |
5 |
100 |
0.1 |
5 |
Queue-12/L1 |
5 |
100 |
0.1 |
2.5 |
Queue-13/H2 |
100 |
100 |
0.1 |
5 |
Queue-14/EF |
100 |
100 |
0.1 |
5 |
Queue-15/H1 |
10 |
100 |
0.1 |
2.5 |
Queue-16/NC |
10 |
100 |
0.1 |
2.5 |