S7506R跨板镜像

[SMGT-ZhengWuWaiWang-GigabitEthernet3/0/1]mirroring-group 1 mirroring-port both

 Error: All the ports in one mirroring group should be in the same chip!

型号：H3C S7506R  

版本：Version 3.10, Release 3135

两块板卡，板卡2全电口、板卡3全光口

 Slot No.  Brd Type    Brd Status   Subslot Num    Sft Ver         Patch Ver

 0         LS81SRPG    Master       0              S7506R-3135     None      

 1         NONE        Absent       Absent         None            None

 2         LS82GT20A   Normal       0              S7506R-3135     None      

 3         LS82GP20A   Normal       0              S7506R-3135     None   

板卡2做了镜像：

<SMGT-ZhengWuWaiWang>dis mirroring-group all

mirroring-group 1:

    type: local

    status: active

    mirroring port: 

        GigabitEthernet2/0/1  both

        GigabitEthernet2/0/2  both

        GigabitEthernet2/0/3  both

        GigabitEthernet2/0/4  both

        GigabitEthernet2/0/6  both

        GigabitEthernet2/0/7  both

        GigabitEthernet2/0/8  both

        GigabitEthernet2/0/9  both

        GigabitEthernet2/0/10  both

        GigabitEthernet2/0/11  both

        GigabitEthernet2/0/12  both

        GigabitEthernet2/0/13  both

        GigabitEthernet2/0/14  both

        GigabitEthernet2/0/15  both

        GigabitEthernet2/0/16  both

        GigabitEthernet2/0/17  both

        GigabitEthernet2/0/18  both

        GigabitEthernet2/0/19  both

        GigabitEthernet2/0/20  both       

    monitor port: GigabitEthernet2/0/5

mirroring-group 2:

    type: local

    status: inactive

    mirroring port: 

    monitor port: 

<SMGT-ZhengWuWaiWang>

问题：板卡3无法做镜像

[SMGT-ZhengWuWaiWang-GigabitEthernet3/0/1]mirroring-group 1 mirroring-port both

 Error: All the ports in one mirroring group should be in the same chip!

请教如何解决？