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FAQ-why can't change PRI value of QinQ inner tag after using command of trust 8021p

Publication Date:  2012-07-27 Views:  30 Downloads:  0
Issue Description

under interface view of NE40E, use configured command of "trust 8021p",

but in captured packet, users find that the PRI value of QinQ inner tag can't be modified.

version :  NE40E&80E V300R003C02B697

Alarm Information
null
Handling Process

For  version V300R003C02B697,LPUG board just can modify the pri value of QinQ outer tag,

For version V300R006 or later,LPUG board can modify the pri value of both QinQ inner and outer tag. 

Root Cause

snapshot of captured packets, please refer to attachment.

configuration of interface:
#
interface GigabitEthernet3/0/2.300
 description Interconnection H-QoS Test Ingress; simon 21 Oct 2010
 set flow-stat interval 30
 control-vid 2002 qinq-termination
 vlan-group 1
  statistic enable
  user-queue cir 330000 pir 330000 flow-queue C-Ingress inbound
  #
 qinq termination pe-vid 2000 ce-vid 300 vlan-group 1
 traffic-policy PE-ingress_900300 inbound link-layer
 mpls l2vc 1.0.0.2 pw-template STANDARD 900300
 trust upstream C-Access
 trust 8021p
#

version information:

<NE-03>display version
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.50 (NE40E&80E V300R003C02B697)
Copyright (C) 2000-2009 Huawei Technologies Co., Ltd.
Quidway NetEngine 40E uptime is 44 days, 2 hours, 24 minutes
-----omitted----
LPU 3  : uptime is 44 days, 2 hours, 19 minutes
         StartupTime   2010/10/13   16:06:05
  Host    processor :
  1. SDRAM Memory Size:  512M  bytes
  2. Flash Memory Size:   32M  bytes
  LPU version information:
  1. PCB      Version : CR52LPUG REV E
  2. EPLD     Version : 009
  3. NP       Version : 010
  4. BootROM  Version : 71.0
  5. BootLoad Version : 224.0
  6. FSU             Version : Version 2.1 RELEASE 0372
  7. EFU             Version : Version 23.0 RELEASE 0372
  TCM version information:
  1. PCB      Version : CR52TCMH REV A
  FAD version information:
  1. PCB      Version : CR52FADD REV C
  2. EPLD     Version : 005
  3. FPGA1    Version : 5191
  4. FPGA2    Version : 5191
  5. FPGA3    Version : 181
  LPC version information:
  1. PCB      Version : CR52LPCA REV B
  2. EPLD     Version : 000
  MonitorBUS version information:
  1. PCB      Version : CR31MBSA REV A
  2. EPLD     Version : 019
  3. Software Version : 3.8
  PIC0's version information:
  1. PCB      Version : CR52EAGF REV A
  2. EPLD     Version : 004

Suggestions
please upgrade version to V300R006 or later.

END