What is the limitation on qos car and traffic policy

11

The qos car command can be configured on an interface or a sub-interface. If the qos car command that is configured on a WAN interface defines the ACL number, or source or destination IP address range, the qos car command can be configured on the interface for 16 times.
The traffic policy command creates a traffic policy. A traffic policy can be applied to one direction on an interface only. The AR supports a maximum of 1024 traffic policies.

Other related questions:
Maximum number of the qos car and traffic policy configurations on the same interface
You can run the qos car command in the interface or sub-interface view. If the ACL number, destination IP address range, or source IP address range is configured in the qos car command on WAN interfaces, you can run the qos car command repeatedly on an interface for a maximum of 16 times. You can run the traffic policy command to create a traffic policy. A traffic policy can be applied to only one direction on an interface, and the device supports a maximum of 1024 traffic policies.

Unit of rate limits for S series switches
The unit of rate limits for S series switches (except S1700 switches) is kbit/s.

Meaning of the CAR granularity on S series switches
Sorry, I can't answer this question. For details about product specifications and performance, contact Huawei engineers through Huawei's customer service hotline.

How to configure rate limiting in a traffic policy on an AR

1. Create a traffic classifier.
2. Creates a traffic behavior.
3. Creates a traffic policy.
4. Apply the traffic policy.
For example, you can configure rate limiting for the network segment 192.168.1.0 as follows:
#
acl number 3000 //Create ACL 3000 to match the network segment to which the rate of packets needs to be limited.
rule 5 permit ip source 192.168.1.0 0.0.0.255
#
traffic classifier c1 operator or //Configure the matching condition of the traffic classifier to ACL 3000.
if-match acl 3000
#
traffic behavior b1 //Configure the action of the traffic behavior to rate limiting: Set the CIR to 384 kbit/s and the PIR to 768 kbit/s, permit green packets to be sent, forward yellow packets after marking the DSCP priority of yellow packets as 0, and discard red packets.
car cir 384 pir 768 cbs 48000 pbs 96000 mode color-blind green pass yellow pass remark-dscp default red discard
#
traffic policy test //Create a traffic policy and bind it to the traffic classifier and traffic behavior.
classifier c1 behavior b1
#
interface GigabitEthernet0/0/0
ip address 192.168.1.254 255.255.255.0
traffic-policy test inbound //Apply the traffic policy test to the inbound direction of an intranet interface.
#
return

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