Cisco Systems WSC4500X16SFP Manual De Usuario
27-32
Software Configuration Guide—Release 12.2(25)SG
OL-7659-03
Chapter 27 Configuring Quality of Service
Configuring QoS
Creating a Policy Map
To create a policy map, perform this task:
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:
When configuring the policy-map class trust state, note the following:
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You can enter the no trust command to use the trust state configured on the ingress interface (this
is the default).
is the default).
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With the cos keyword, QoS sets the internal DSCP value from received or interface CoS.
•
With the dscp keyword, QoS uses received DSCP.
Configuring the Policy Map Class DBL State
To configure the policy map class DBL state, perform this task:
Command
Purpose
Switch(config)# [no] policy-map
policy_name
Creates a policy map with a user-specified name.
Use the no keyword to delete the policy map.
Command
Purpose
Switch(config-pmap-c)# [no] trust
{cos | dscp}
Configures the policy-map class trust state, which selects
the value that QoS uses as the source of the internal
DSCP value (see the
the value that QoS uses as the source of the internal
DSCP value (see the
).
Use the no keyword to clear a configured value and return
to the default.
to the default.
Command
Purpose
Switch(config-pmap-c)# [no] dbl
Configures the policy-map class DBL state, which tracks
the queue length of traffic flows (see the
the queue length of traffic flows (see the
).
Use the no keyword to clear an DBL value and return to
the default.
the default.