某局点S6800堆叠设备部分网段终端无法正常访问交换机

组网不涉及

告警信息不涉及

两台S6800部署堆叠做网关，故障发生时下挂部分网段终端无法访问网关地址

通过流统确认不通的网段都是从slot1发过来的

设备debug icmp报文无回显

[BJ-GH-0201-H22-H6800-A-INT-D01-21.113-FortyGigE2/0/51]dis qos policy  interface  inbound 

Interface: FortyGigE1/0/51

  Direction: Inbound

  Policy: test

   Classifier: test

     Operator: AND

     Rule(s) :

      If-match acl 3334

     Behavior: test

      Accounting enable:

        133 (Packets)

<BJ-GH-0201-H22-H6800-A-INT-D01-21.113>debugging ip packet  acl  3334

<BJ-GH-0201-H22-H6800-A-INT-D01-21.113>t m

The current terminal is enabled to display logs.

<BJ-GH-0201-H22-H6800-A-INT-D01-21.113>t d

The current terminal is enabled to display debugging logs.

流通有计数增长，但是debug无回显

当流量通过slot2上送设备正常回包。

Interface: FortyGigE2/0/49

  Direction: Inbound

  Policy: test

   Classifier: test

     Operator: AND

     Rule(s) :

      If-match acl 3334

     Behavior: test

      Accounting enable:

        4 (Packets)

l3_defip 出现parity-error R25XX版本有概率出现修复错误，将底层表象清空

转发不通的原因为，slot 2 有正常上送CPU的转发表

1064  0        10.21.1.xxx/32       00:00:00:00:00:00 100001    0     0     0   32 y

Slot 1 没有，原因是slot 1 发生了l3_defip parity-error ，老版本修复此表存在一定概率将底层表清空，导致转发异常

Unit 0: L3_DEFIP entry 4102 TCAM parity error

         Line 161131: mem: 3851=L3_DEFIP blkoffset:11

         Line 161136: RESTORE[from Y pipe]: L3_DEFIP[3851] blk: ipipe0 index: 4102

         Line 161146: Unit 0: L3_DEFIP entry 2048 TCAM parity error

         Line 161156: mem: 3851=L3_DEFIP blkoffset:11

         Line 161161: RESTORE[from Y pipe]: L3_DEFIP[3851] blk: ipipe0 index: 2048

         Line 161181: mem: 3851=L3_DEFIP blkoffset:11

         Line 161186: RESTORE[from Y pipe]: L3_DEFIP[3851] blk: ipipe0 index: 4309

 升级到新版本