Cisco 4500M Software Manual page 407

Chapter 29 Configuring QoS
Creating a Policy Map
To create a policy map, perform this task:
Command
Switch(config)# [no] policy-map policy_name
Configuring Policy-Map Class Actions
These sections describe policy-map class action configuration:
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Configuring the Policy-Map Class Trust State
To configure the policy-map class trust state, perform this task:
Command
Switch(config-pmap-c)# [no] trust
{cos | dscp}
When configuring the policy-map class trust state, note the following:
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Configuring the Policy Map Class DBL State
To configure the policy map class DBL state, perform this task:
Command
Switch(config-pmap-c)# [no] dbl
OL-6696-01
Configuring the Policy-Map Class Trust State, page 29-31
Configuring the Policy Map Class DBL State, page 29-31
Configuring Policy-Map Class Policing, page 29-32
Using a Named Aggregate Policer, page 29-32
Configuring a Per-Interface Policer, page 29-32
You can enter the no trust command to use the trust state configured on the ingress interface (this
is the default).
With the cos keyword, QoS sets the internal DSCP value from received or interface CoS.
With the dscp keyword, QoS uses received DSCP.
Purpose
Creates a policy map with a user-specified name.
Use the no keyword to delete the policy map.
Purpose
Configures the policy-map class trust state, which selects
the value that QoS uses as the source of the internal
DSCP value (see the "Internal DSCP Values" section on
page 29-12).
Use the no keyword to clear a configured value and return
to the default.
Purpose
Configures the policy-map class DBL state, which tracks
the queue length of traffic flows (see the
Management" section on page
Use the no keyword to clear an DBL value and return to
the default.
Software Configuration Guide—Release 12.2(25)EW
Configuring QoS
"Active Queue
29-13).
29-31