Huawei Quidway S7700 Configuration Manual - Qos page 31

Quidway S7700 Smart Routing Switch
Configuration Guide - QoS
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Configuring Traffic Policing
By configuring the traffic policing action, the S7700 performs traffic policing for the packets
matching traffic classification rules, and discards the packets that exceed the rate limit or re-
marks colors or CoS of these packets.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
traffic behavior behavior-name
A traffic behavior is created and the traffic behavior view is displayed.
Step 3 Run:
car cir cir-value [ pir pir-value ] [ cbs cbs-value pbs pbs-value ] [ mode { color-
blind | color-aware } ] [ green { discard | pass [ service-class class color
color ] } ] [ yellow { discard | pass [ service-class class color color ] } ]
[ red { discard | pass [ service-class class color color ] } ]
The CAR action is configured.
Step 4 (Optional) Run:
car car-name share
The aggregate CAR action is configured.
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Disabling URPF
Context
After the URPF function is enabled on an interface, the S7700 performs the URPF check on all
traffic passing through the interface. To prevent the packets of a certain type from being
discarded, you can disable the URPF check for these packets. For example, if the S7700 is
configured to trust all the packets from a certain server, the S7700 does not check these packets.
Issue 01 (2011-07-15)
and packet loss is prevented. For details, see
on the Eth-Trunk.
NOTE
In a traffic behavior, the remark destination-mac command cannot be used with the following commands
simultaneously:
l redirect ip-nexthop
l redirect ip-multihop
NOTE
Before configuring aggregate CAR, you need to run the qos car command to configure a CAR profile.
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1 Class-based QoS Configuration
4.3 Configuring Traffic Distribution Based
24