June 2003
Intermediate to advanced
432 pages
15h 56m
English
book
Cisco Catalyst QoS: Quality of Service in Campus Networks
by Mike Flannagan - CCIE® No. 7651, Richard Froom - CCIE No. 5102, Kevin Turek - CCIE No. 7284
Content preview from Cisco Catalyst QoS: Quality of Service in Campus Networks
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Congestion Avoidance 113
Congestion Avoidance
The Catalyst 5000 Family of switches achieves congestion avoidance through the use of
queue management on certain line modules based on CoS values. No support for output
scheduling or queuing based on DSCP or IP precedence values exists for the Catalyst 5000
Family of switches. The two uplink modules and three line modules described in Table 4-2
represent the only line modules to support output scheduling. All other line modules only
utilize a single transmit queue, and the transmit queue tail drops all frames when exhausting
buffer queue space.
The uplink modules and line modules in Table 4-2 utilize ...
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