Cisco Catalyst 4500 Series - Restrictions for Marking Network Traffic

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40-21

Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG

OL-25340-01

Chapter 40 Configuring Quality of Service

Configuring QoS

Figure 40-3 Traffic marking Procedure Flowchart

Restrictions for Marking Network Traffic

The following restrictions apply to packet marking actions:

• QoS-group can be marked only in the input direction and can only support unconditional explicit

marking.

• Only explicit marking is supported for policer-based marking.

Multi-attribute Marking Support

The supervisor engine can mark more than one QoS attribute of a packet matching a class of traffic. For

example, DSCP, CoS, and QoS-group can all be set together, using either explicit or tablemap-based

marking.

127073

Create a class map

Using a

table map?

No Yes

Create a policy map

Attach policy map(s)

to interface

Create a table map

Start

Finish

Create

additional

policy

maps?

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