Problem Description

Below is the version & configration template of "QoS car" used under 

Eth-trunk dot1q termination sub-interface: 

VRP version: V600R001C00SPC800 

interface Eth-Trunk7 
mtu 9216 
description NE40eX8-S9306-XGE 
mode user-termination 
mode lacp-static 
load-balance packet-all 
# 
interface Eth-Trunk7.1 
description TEST 
control-vid 1 dot1q-termination 
dot1q termination vid 110 
ip address 110.93.203.73 255.255.255.252 
# 
[KHI-NE40E-X8-Eth-Trunk7.1]qos car cir 2048 pir 2048 cbs 7256000 pbs 7256000 

green pass yellow pass red discard outbound 
Error: This command can not be configured on this port. 
[KHI-NE40E-X8-Eth-Trunk7.1]qos car cir 2048 pir 2048 cbs 7256000 pbs 7256000

 green pass yellow pass red discard inbound 
Error: This command can not be configured on this port. 

As seen above, "qos car" command can not be configured on dot1q termination sub-interface. 

Solution

Currently no VRP version supports this feature. As an alternate and effective solution,

"qos-profile" is configured instead for such interfaces to meet the requirement. 
  
Below is the reference configuration template for applying qos-profile: 

<HUAWEI> system-view
[HUAWEI] qos-profile test
[HUAWEI-qos-profile-test] car cir 2048 pir 2048
[HUAWEI-qos-profile-test] quit 
  
The qos-profile test can be used on sub-interfaces for QinQ tag termination that 

are configured on Eth-Trunk sub-interfaces or GE sub-interfaces to apply 

QoS attributes to all tagged packets. 
  
[HUAWEI] interface Eth-Trunk7.1
[HUAWEI-Eth-Trunk7.1] qos-profile test outbound
[HUAWEI-Eth-Trunk7.1] qos-profile test inbound 

thanks for sharing ...............

what is QoS CAR???

really awesome post...

thanks for it