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Knowledge Base

QoS CAR CIR is with double bandwidth limit of the configured CIR value.

Publication Date:  2019-04-20  |   Views:  743  |   Downloads:  0  |   Author:  cWX611640  |   Document ID:  EKB1100012743

Contents

Issue Description

The customer reports the qos car cir is with double bandwidth limit of the configured CIR value.

the customer configured 1gbps qos car,however qos car doesn’t shape according to configured value.

configuration:

interface Eth-Trunk9.103

 qos car cir 1000000 cbs 56100 green pass red discard inbound

 qos car cir 1000000 cbs 56100 green pass red discard outbound


Solution

When apply the “qos car cir” under Eth-Trunk interface with 4 physical ports, it is implemented by 2 NP chips, the car result will be double.

Use the “QoS-Profile” (by 1 TM chip) instead of the “qos car cir” (by 2 NP chips).

#
QoS-Profile TEST
user-queue cir 100000 pir 100000
#
interface Eth-Trunk9.103
QoS-Profile TEST inbound
QoS-Profile TEST outbound
#