Specifications

White Paper
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 9 of 89
●
Ability to trust incoming Class of Service and Type of Service priority bits
●
The ability to push down local QoS policies to a Distributed Forwarding Card (DFC)
●
A dedicated QoS TCAM (separate from the TCAM used to store Security ACL’s)
●
Egress marking and egress classification
●
User Based Rate Limiting (UBRL)
●
DSCP Transparency
Starting with the PFC3B support for the following features was added
●
L2 ACLs for IP traffic on VLAN interfaces
●
Match on COS per VLAN
Figure 2. Policy Feature Card 3 on the Supervisor 720
Figure 3. Policy Feature Card 3 (PFC3)
Both the PFC3B and PFC3BXL add the following QoS features over the PFC3A
●
Apply QoS policies on Tunnel interfaces
●
Apply Layer 2 ACL’s for IPv4 traffic (supported on a per VLAN basis)
●
Ability to match on CoS or VLAN within a class map