Specifications

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11. Appendix Three—Comparison of QoS Features between PFC’s

Over the years a number of different PFC versions have been released. The table below provides a high level

overview of the major differences between the QoS capabilities of each PFC.

Feature PFC3A PFC3B PFC3BXL PFC3C PFC3CXL

ACL Classification X X X X X

Microflow Policing X X X X X

Ingress Aggregate Policing X X X X X

Egress Aggregate Policing X X X X X

User Based Rate Limiting X X X X X

Egress DSCP Mutation X X X X X

Ingress CoS Mutation X X X X X

Number of QoS ACL’s 32K 32K 32K 32K 32K

Number of QoS Masks 4K 4K 4K 4K 4K

Number of QoS Labels 512 4096 4096 4096 4096

12. Appendix Four—Default QoS Settings for Selected Catalyst 6500 Linecards

The following section will display the default QoS settings for some of the major linecards. A show command will be

used to display those settings on one of the linecards ports.

12.1 WS-X6148-RJ-45

Cat6500#show queueing interface f4/1

Interface FastEthernet4/1 queueing strategy: Weighted Round-Robin

Port QoS is enabled

Port is untrusted

Extend trust state: not trusted [COS = 0]

Default COS is 0

Transmit queues [type = 2q2t]:

Queue Id Scheduling Num of thresholds

-----------------------------------------

1 WRR low 2

2 WRR high 2

WRR bandwidth ratios: 100[queue 1] 255[queue 2]

queue-limit ratios: 70[queue 1] 30[queue 2]

queue tail-drop-thresholds

--------------------------

1 80[1] 100[2]

2 80[1] 100[2]

queue thresh cos-map

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1 1 0 1