After a traffic policy is applied, the system performs traffic policing for the packets
that belong to a VLAN and match a traffic classifier in the inbound or outbound
direction.
----End
2.3.6 Checking the Configuration
After traffic policing based on a traffic classifier is configured, you can view the traffic statistics
or CAR statistics.
Context
The configurations of traffic policing based on a traffic classifier are complete.
Procedure
l Run the display traffic behavior user-defined [ behavior-name ] command to check the
traffic behavior configuration.
l Run the display traffic classifier user-defined [ classifier-name ] command to check the
traffic classifier configuration.
l Run the display traffic policy user-defined [ policy-name [ classifier classifier-name ] ]
command to check the traffic policy configuration.
l Run the display qos car { all | car-name } command to check the CAR profile
configuration.
l Run the display qos configuration interface [ interface-type interface-number ] command
to check all the QoS configurations on the interface.
----End
2.4 Configuring Traffic Shaping
After traffic shaping is configured, the S7700 shapes packets matching traffic classification rules
so that packets are sent out at an even rate.
2.4.1 Establishing the Configuration Task
Before configuring traffic shaping, familiarize yourself with the applicable environment,
complete the pre-configuration tasks, and obtain the required data. This helps you complete the
configuration task quickly and accurately.
Applicable Environment
If the bandwidth of upstream and downstream networks is different, you can configure traffic
shaping on the outgoing interface connecting the upstream network and downstream network.
In this manner, the rate of packets sent to the downstream network meets the requirements of
the bandwidth of the downstream network. This can prevent congestion and packet loss on the
network to a certain degree.
The S7700 supports traffic shaping on an interface and in an interface queue. You can configure
traffic shaping as required. If traffic shaping of these two types is configured, ensure that the
CIR for traffic shaping on an interface must be greater than or equal to the sum of CIRs for traffic
Quidway S7700 Smart Routing Switch
Configuration Guide - QoS 2 Traffic Policing and Traffic Shaping Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
58
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