某局点S125F端口流量计数为0

无

客户反馈1/0/0/39、1/0/0/40等端口的流量计数突然不再增长，清空计数后，发现流量计数一直为0，但是流量可以正常转发，对端设备流量计数正常。

（1）        查看端口流量计数，发现流量不增长（已将端口计数reset）：

FUZHOU_S12510-probe]dis int ten 1/0/0/39

Input (total):  0 packets, 0 bytes

         0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

Input (normal):  0 packets, - bytes

         0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

Input:  0 input errors, 0 runts, 0 giants, 0 throttles

         0 CRC, 0 frame, - overruns, 0 aborts

         - ignored, - parity errors

Output (total): 0 packets, 0 bytes

         0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

Output (normal): 0 packets, - bytes

         0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses

Output: 0 output errors, - underruns, - buffer failures

         0 aborts, 0 deferred, 0 collisions, 0 late collisions

         0 lost carrier, - no carrier

（2）        1/0/0/39底层端口名是XE14，查看xe14发下返回报错，说明counter任务已经异常停止了：

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 show/c/xe14

NOTE: counter collection is not running

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 show/c/xe14

NOTE: counter collection is not running

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 show/c/xe16

UC_QUEUE_PEAK(3).xe16   :                     1

NOTE: counter collection is not running

（3）        在local logbuffer中有对应2月10日的parity error报错：

Feb 09 2020 16:22:12:741777:

LINE:1160-TASK:DPC1-FUNC:DRV_SDK_Printk:

unit 1 RX Debug Counter port 15 RDBGC6 entry 61463 parity error

Feb 10 2020 01:27:39:974603:

LINE:1160-TASK:DPC1-FUNC:DRV_SDK_Printk:

unit 1 RX Debug Counter port 15 RDBGC6 entry 61463 parity error

说明端口计数表发生parity error，是一种芯片软失效。这种表没有恢复机制。

（4）        再继续查看对应counter表的ingress和egress方向的两个表，都会报出parity error，而且该条表项有时有，有时无：

1)  ING_SERVICE_COUNTER_TABLE_x：

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/ING_SERVICE_COUNTER_TABLE_x

ING_SERVICE_COUNTER_TABLE_X.ipipe0[0]: <PACKET_COUNTER=0xf3fb6e3,EVEN_PARITY=1,BYTE_COUNTER=0x1b573e750>

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/ING_SERVICE_COUNTER_TABLE_x

ING_SERVICE_COUNTER_TABLE_X.ipipe0[0]: <PACKET_COUNTER=0x10dea912,BYTE_COUNTER=0xa54e490c6>

2)  ING_SERVICE_COUNTER_TABLE：

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/ING_SERVICE_COUNTER_TABLE

ING_SERVICE_COUNTER_TABLE.ipipe0[0]: <PACKET_COUNTER=0x17273f0b,BYTE_COUNTER=0xbc25480bc>

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/ING_SERVICE_COUNTER_TABLE

ING_SERVICE_COUNTER_TABLE.ipipe0[0]: <PACKET_COUNTER=0x179cd864,EVEN_PARITY=1,BYTE_COUNTER=0xe33f072ab>

3)  EGR_SERVICE_COUNTER_TABLE_x：

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/EGR_SERVICE_COUNTER_TABLE_x

EGR_SERVICE_COUNTER_TABLE_X.epipe0[0]: <PACKET_COUNTER=0x4830be8,BYTE_COUNTER=0xe886e4306>

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/EGR_SERVICE_COUNTER_TABLE_x

EGR_SERVICE_COUNTER_TABLE_X.epipe0[0]: <PACKET_COUNTER=0x49c7f4b,EVEN_PARITY=1,BYTE_COUNTER=0xf11c48b9c>

4)  EGR_SERVICE_COUNTER_TABLE

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/EGR_SERVICE_COUNTER_TABLE

EGR_SERVICE_COUNTER_TABLE.epipe0[0]: <PACKET_COUNTER=0x175d0964,EVEN_PARITY=1,BYTE_COUNTER=0x446bab332>

[FUZHOU_S12510-probe]bcm c 1 s 0 c 1 d/chg/EGR_SERVICE_COUNTER_TABLE

EGR_SERVICE_COUNTER_TABLE.epipe0[0]: <PACKET_COUNTER=0x1775ad4d,BYTE_COUNTER=0x4cbb52738>

（5）        说明是由于parity error导致端口对应芯片的计数进程异常关闭。

    重启对应单板来复位芯片回复已经发生且无法自动修复的parity error。