User's Manual

Configuration Guide of XGS-5240-Series
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show mls qos maps [cos-dp | dscp-dscp |
dscp-intp | dscp-dp | intp-dscp]
Display the configuration of QoS mapping.
show class-map [<class-map-name>]
Display the classified map information of
QoS.
show policy-map [<policy-map-name>]
Display the policy map information of
QoS.
show mls qos {interface [<interface-id>]
[policy | queuing] | vlan <vlan-id>}
Displays QoS configuration information on
a port.
25.3 QoS Example
Example 1:
Enable QoS function, change the queue out weight of port ethernet 1/0/1 to
1:1:2:2:4:4:8:8, set the port in trust CoS mode without changing DSCP value, and set the
default CoS value of the port to 5.
The configuration steps are listed below:
Switch#config
Switch(config)#interface ethernet 1/0/1
Switch(Config-If-Ethernet1/0/1)# mls qos queue wrr weight 1 1 2 2 4 4 8 8
Switch(Config-If-Ethernet1/0/1)#mls qos cos 5
Configuration result:
When QoS enabled in Global Mode, the egress queue bandwidth proportion of port
ethernet1/0/1 is 1:1:2:2:4:4:8:8. When packets have CoS value coming in through port
ethernet1/0/1, it will be map to the queue out according to the CoS value, CoS value 0 to 7
correspond to queue out 1, 2, 3, 4, 5, 6, 7, 8 respectively. If the incoming packet has no CoS
value, it is default to 5 and will be put in queue6. All passing packets would not have their
DSCP values changed.
Example 2:
In port ethernet1/0/2, set the bandwidth for packets from segment 192.168.1.0 to 10 Mb/s, with
a burst value of 4 MB, all packets exceed this bandwidth setting will be dropped.
The configuration steps are listed below:
Switch#config
Switch(config)#access-list 1 permit 192.168.1.0 0.0.0.255
Switch(config)#class-map c1