26-24

Catalyst 2950 Desktop Switch Software Configuration Guide
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Chapt er 26 Conf i gurin g QoS
Configuring QoS
Switch(config)# access-list 1 permit 10.1.0.0 0.0.255.255
Switch(config)# class-map ipclass1
Switch(config-cmap)# match access-group 1
Switch(config-cmap)# exit
Switch(config)# policy-map flow1t
Switch(config-pmap)# class ipclass1
Switch(config-pmap-c)# police 5000000 8192 exceed-action dscp 10
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# switchport mode access
Switch(config-if)# service-policy input flow1t

This example shows how to create a Layer 2 MAC ACL with two permit statements and attach it to an

ingress interface. The first permit statement allows traffic from the host with MAC

address 0001.0000 .0 001 dest ine d fo r t he h ost w it h MAC address 0 002 .00 00.000 1.

Switch(config)# mac access-list extended maclist1
Switch(config-ext-mac)# permit host 0001.0000.0001 host 0002.0000.0001
Switch(config-ext-mac)# exit
Switch(config)# mac access-list extended maclist2
Switch(config-ext-mac)# permit host 0001.0000.0003 host 0002.0000.0003
Switch(config-ext-mac)# exit
Switch(config)# class-map macclass1
Switch(config-cmap)# match access-group name maclist1
Switch(config-cmap)# exit
Switch(config)# policy-map macpolicy1
Switch(config-pmap)# class macclass1
Switch(config-pmap-c)# set ip dscp 56
Switch(config-pmap-c)# exit
Switch(config-pmap)# class macclass2 maclist2
Switch(config-pmap-c)# set ip dscp 48
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# switchport mode trunk
Switch(config-if)# mls qos trust cos
Switch(config-if)# service-policy input macpolicy1

Configuring CoS Maps

Note Th is fea ture is available o nly i f your sw itch i s r unn ing the EI .

This se ction desc ribe s how to configure the Co S m aps:

•Configuring the CoS-to-DSCP Map, page 26-25

•Configuring the DS CP-t o-C oS Ma p, pa ge 2 6-2 6

All the maps are globally defined.