Cisco Catalyst 4500 Series, Software Configuration Manual

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 44 Configuring Quality of Service
Configuring QoS on a Standalone Supervisor Engine 6-E/6L-E or Supervisor Engine 7-E/7L-E/8-E
To delete an existing policy map, use the no policy-map policy-map-name global configuration
command. To delete an existing class, use the no class class-name policy-map configuration command.
To disable DBL on the associated queue, use the no dbl policy-map class configuration command.
The following example shows how to configure class-level, DBL action along with average-rate shaping.
It enables DBL on the queue associated with traffic-class
class1 .
Switch# configure terminal
Switch(config)# policy-map policy1
Switch(config-pmap)# class class1
Switch(config-pmap-c)# shape average 256000
Switch(config-pmap-c)# dbl
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface gigabitethernet1/1
Switch(config-if)# service-policy output policy1
Switch(config-if)# end
Switch#
Switch# show policy-map policy1
Policy Map policy1
Class class1
shape average 256000
dbl
Transmit Queue Statistics
Transmit queue statistics are visible by entering the show policy-map interface command:
Switch#
show policy-map interface gigabitEthernet 1/1
GigabitEthernet1/1
Service-policy output: queuing-policy
Class-map: queuing-class (match-all)
1833956 packets
Match: cos 1
Queueing
(total drops) 1006239
(bytes output) 56284756
shape (average) cir 320000000, bc 1280000, be 1280000
target shape rate 320000000
Class-map: class-default (match-any)
1 packets
Match: any
(total drops) 0
(bytes output) 2104
Step 11
Switch# show policy-map
[ policy-map-name [class
class-map-name ]]
or
Switch# show policy-map interface
interface-id
Verifies your entries.
Step 12
Switch#
copy running-config
startup-config
(Optional) Saves your entries in the configuration file.
Command Purpose