CE---PE---P---PE(MSR56)---CE
两端跑VPLS业务,56侧可以学习到对端CE的MAC地址,但是无法学习到本端CE交换机的MAC地址。更换CE也无法学习到。
隧道正常建立,LDP及PW都没有异常,且56能学到对端的MAC地址。
interface GigabitEthernet2/0/2.1
mpls enable
mpls ldp enable
vlan-type dot1q vid 3
xconnect vsi abxwj
===============display l2vpn pw===============
Flags: M - main, B - backup, BY - bypass, H - hub link, S - spoke link, N - no split horizon
Total number of PWs: 1
1 up, 0 blocked, 0 down, 0 defect, 0 idle, 0 duplicate
VSI Name: abxwj
Peer PW ID/Rmt Site In/Out Label Proto Flag Link ID State
10.71.20.81 513200112 917631/133758 LDP M 8 Up
===============display l2vpn ldp===============
Total number of LDP PWs: 1, 1 up, 0 down
Peer PW ID/VPLS ID In/Out Label State Owner
10.71.20.81 513200112 917631/133758 Up abxwj
===============display l2vpn forwarding pw===============
Total number of VSIs: 1
Total number of PWs: 1, 1 up, 0 blocked, 0 down
VSI Name In/Out Label NID Link ID State
abxwj 917631/133758 64 8 Up
随将我们MSR56 vsi所在得物理接口接口从2口换为6口后,MAC地址学习正常,业务恢复。
测试发现,业务换到接口2口3口都异常,换到6口则业务恢复。
怀疑设备硬件有问题,此类问题建议收集故障口的如下信息:
display interfece GigabitEthernet 2/0/0---2/0/3
display hardware internal physical GigabitEthernet 2/0/0 statistic
display hardware internal physical GigabitEthernet 2/0/1 statistic
display hardware internal physical GigabitEthernet 2/0/2 statistic
display hardware internal physical GigabitEthernet 2/0/3 statistic
dis hardware internal dump GigabitEthernet 2/0/0 chip 1 channel
dis hardware internal dump GigabitEthernet 2/0/0 chip 2 channel
dis hardware internal dump GigabitEthernet 2/0/1 chip 1 channel
dis hardware internal dump GigabitEthernet 2/0/1 chip 2 channel
dis hardware internal dump GigabitEthernet 2/0/2 chip 1 channel
dis hardware internal dump GigabitEthernet 2/0/2 chip 2 channel
dis hardware internal dump GigabitEthernet 2/0/3 chip 1 channel
dis hardware internal dump GigabitEthernet 2/0/3 chip 2 channel
如上信息收集后,可判断 G2/0/0 -- G2/0/3 接收通道无法收包,发送通道正常、只有广播/组播包(无法学习到MAC)。怀疑此四个口对应的CPU MAC出问题。更换备件即可。
GigabitEthernet2/0/0
Last 300 second input: 0 packets/sec 0 bytes/sec 0%
Last 300 second output: 0 packets/sec 36 bytes/sec 0%
Input (total): 0 packets, 0 bytes
- unicasts, - broadcasts, - multicasts, - pauses
Input (normal): 0 packets, - bytes
0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses
Input: 0 input errors, 0 runts, 0 giants, - throttles
0 CRC, - frame, - overruns, 0 aborts
- ignored, - parity errors //无法接收了
Output (total): 745515 packets, 82379963 bytes
- unicasts, - broadcasts, - multicasts, - pauses
Output (normal): 745515 packets, - bytes
0 unicasts, 14 broadcasts, 745501 multicasts, 0 pauses
Output: 0 output errors, - underruns, - buffer failures
0 aborts, 0 deferred, 0 collisions, 0 late collisions
- lost carrier, - no carrier
[MSR5560-probe]display hardware internal physical GigabitEthernet 2/0/0 statistic
Hardware information of receive:
Input packets: 0
Broadcast packets: 0
Multicast packets: 0
Align error packets: 0
CRC errors packets: 0
Symb errors packets: 0
Sequence err packets: 0
Recv No Buffers: 0
Short Packets(<64): 0
TooLongErrs Packets: 0
Missed packets(fifo): 0 //没有接收计数
Hardware information of transmitted:
Output packets: 745331
Broadcast packets: 14
Multicast packets: 745317
Defered Packets: 0
No ready(underrun): 0
Lost Carriers: 0
Late collisions: 0
Total collision: 0
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