Cisco 4500M User Manual

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Software Configuration Guide—Release 12.2(25)EW
OL-6696-01
Chapter 29 Configuring QoS
Configuring QoS
This example shows how to verify the configuration:
Switch# show qos interface fastethernet 5/24 | include Default COS
Default COS is 5
Switch#
Configuring DSCP Values for an Interface
QoS assigns the DSCP value specified with this command to non IPv4 frames received on interfaces
configured to trust DSCP and to all frames received on interfaces configured as untrusted.
To configure the DSCP value for an ingress interface, perform this task:
This example shows how to configure the DSCP 5 as the default on Fast Ethernet interface 5/24:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastethernet 5/24
Switch(config-if)# qos dscp 5
Switch(config-if)# end
Switch#
This example shows how to verify the configuration:
Switch# show qos interface fastethernet 6/1
QoS is enabled globally
Port QoS is enabled
Port Trust State:CoS
Default DSCP:0 Default CoS:0
Tx-Queue Bandwidth ShapeRate Priority QueueSize
(bps) (bps) (packets)
1 31250000 disabled N/A 240
2 31250000 disabled N/A 240
3 31250000 disabled normal 240
4 31250000 disabled N/A 240
Switch#
Command Purpose
Step 1
Switch(config)# interface {fastethernet |
gigabitethernet | tengigabitethernet}
slot/interface | Port-channel number
Selects the interface to configure.
Step 2
Switch(config-if)# [no] qos dscp default_dscp
Configures the ingress interface DSCP value.
Use the no keyword to clear a configured value and
return to the default.
Step 3
Switch(config-if)# end
Exits configuration mode.
Step 4
Switch# show qos interface {fastethernet |
gigabitethernet | tengigabitethernet}
slot/interface
Verifies the configuration.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English