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COMPARISON OF QoS FEATURES BETWEEN PFC VERSIONS
Over the years a number of different PFC versions have been released. Table 4 provides a high-level overview of the major differences between
the QoS capabilities of each PFC.
Table 4.
Major Differences Between PFC QoS Capabilities
Feature
ACL Classification
Microflow Policing
Ingress Aggregate Policing
Egress Aggregate Policing
UBRL
Egress DSCP Mutation
Ingress CoS Mutation
Number of QoS ACLs
Number of QoS Masks
Number of QoS Labels
SUMMARY
With the continued convergence of multiple technologies on IP networks, QoS is becoming more important in the successful operation of customer
networks. As a collection of technologies, distinct QoS features can be applied in different combinations to solve an assortment of problems in
a network. The richness of the QoS feature set on the Cisco Catalyst 6500 provides network managers with a means to facilitate convergence and
prioritize mission-critical application data. More importantly, the nature of the Cisco Catalyst 6500 platform means that incremental changes in
QoS features can be accommodated, allowing the platform to grow to meet the new demands of the networks of the future.
Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.com.
PFC1
PFC2
Yes
Yes
Yes
Yes
Yes
Yes
16 K
32 K
2 K
4 K
512
512
© 2005 Cisco Systems, Inc. All rights reserved.
Page 16 of 18
PFC3A
PFC3B
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
32 K
32 K
4 K
4 K
512
4096
PFC3BXL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
32 K
4 K
4096
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