某局点 S7506X配置本地镜像后CPU高问题

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设备型号和版本：S7506X  R7634P10

故障现象/问题描述:

交换机Chassis 1 Slot 0的cpu高，取消本地镜像1后正常,重新配置又会高:

[ZJHZ-PC-WIFI-SW003-7506x-ATZXZTYC_T1_114-probe]dis cpu-usage

Chassis 1 Slot 0 CPU 0 CPU usage:

      54% in last 5 seconds

      53% in last 1 minute

      49% in last 5 minutes

Chassis 1 Slot 2 CPU 0 CPU usage:

       9% in last 5 seconds

       8% in last 1 minute

       8% in last 5 minutes

Chassis 1 Slot 3 CPU 0 CPU usage:

       2% in last 5 seconds

       2% in last 1 minute

       2% in last 5 minutes

Chassis 1 Slot 4 CPU 0 CPU usage:

       1% in last 5 seconds

       1% in last 1 minute

       1% in last 5 minutes

Chassis 2 Slot 0 CPU 0 CPU usage:

      12% in last 5 seconds

      13% in last 1 minute

高的进程是：

608     39.5%     36.5%     32.2%    [bRX1]

打印发现都是如下业务报文,应该是镜像的报文上cpu了:

  ====debug rxtx softcar show chassis 1 slot 0==== 

ID  Type                RcvPps Rcv_All    DisPkt_All Pps  Dyn Swi Hash ACLmax

0   ROOT                1845   661429868  50356997   1000 S   On  SMAC 0

1   ISIS                0      0          0          800  D   On  SMAC 8

2   ESIS                0      0          0          100  S   On  SMAC 8

目前仅有一个镜像组:

[ZJHZ-PC-WIFI-SW003-7506x-ATZXZTYC_T1_114]dis mirroring-group all

Mirroring group 1:

    Type: Local

    Status: Active

    Mirroring port:

        Ten-GigabitEthernet1/0/0/25  Inbound

        Ten-GigabitEthernet1/0/0/26  Inbound

Monitor port: Bridge-Aggregation8

本地以复现，目前看是芯片上的限制,当目的端口是聚合口,同时聚合口端口down时,报文备误匹配上送cpu.

1.删除镜像配置,或者保持聚合目的端口up规避.

2.后续发布版本解决.