Queueing And Scheduling Of Egress Queue-Sets - Cisco Catalyst 3750 Software Configuration Manual

Chapter 26 Configuring QoS

Queueing and Scheduling of Egress Queue-Sets

Figure 26-8
Figure 26-8 Egress Queue-Set Queueing and Scheduling Flowchart
(DSCP or CoS value).
Determine egress queue
number and threshold
Queue the packet. Service
the queue according to
Send the packet out the
input of the hierarchical
egress queueing and
78-15870-01
shows the egress queue-set queueing and scheduling flowchart.
Start
Receive packet from
the internal ring.
Read QoS label
based on the label.
Yes
Are thresholds
being exceeded?
No
the SRR weights.
Rewrite DSCP,
CoS, or both values,
as appropriate.
standard port, to the
scheduling, or both.
Done
Drop packet.
Catalyst 3750 Metro Switch Software Configuration Guide
Understanding QoS
26-17