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CLI – The following example globally enables DSCP Priority service on
the switch, maps DSCP value 0 to CoS value 1 (on port 1), and then
displays the DSCP Priority settings.
Note: Mapping specific values for IP DSCP is implemented as an
interface configuration command, but any changes will apply to
the all interfaces on the switch.
Quality of Service
The commands described in this section are used to configure Quality of
Service (QoS) classification criteria and service policies. Differentiated
Services (DiffServ) provides policy-based management mechanisms used
for prioritizing network resources to meet the requirements of specific
traffic types on a per hop basis. Each packet is classified upon entry into
the network based on access lists, IP Precedence, DSCP values, or VLAN
lists. Using access lists allows you select traffic based on Layer 2, Layer 3,
or Layer 4 information contained in each packet. Based on configured
network policies, different kinds of traffic can be marked for different
kinds of forwarding.
Console(config)#map ip dscp 4-226
Console(config)#interface ethernet 1/1 4-144
Console(config-if)#map ip dscp 1 cos 0 4-227
Console(config-if)#end
Console#show map ip dscp ethernet 1/1 4-228
DSCP mapping status: disabled
Port DSCP COS
--------- ---- ---
Eth 1/ 1 0 0
Eth 1/ 1 1 0
Eth 1/ 1 2 0
Eth 1/ 1 3 0
.
.
.
Eth 1/ 1 61 0
Eth 1/ 1 62 0
Eth 1/ 1 63 0
Console#
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