Cisco Systems 2960 Manual De Usuario
33-15
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 33 Configuring QoS
Understanding QoS
Queueing and Scheduling on Ingress Queues
Note
Catalyst 2960-S switches do not support ingress queueing.
shows the queueing and scheduling flowchart for ingress ports.
Figure 33-7
Queueing and Scheduling Flowchart for Ingress Ports
Note
SRR services the priority queue for its configured share before servicing the other queue.
90564
Read QoS label
(DSCP or CoS value).
Determine ingress queue
number, buffer allocation,
number, buffer allocation,
and WTD thresholds.
Are thresholds
being exceeded?
Queue the packet. Service
the queue according to
the SRR weights.
Send packet to
the internal ring.
Drop packet.
Start
Yes
No