S6520X-EI IRF分裂

IRF（接口1/1/1；1/1/2和2/1/1；2/1/2）突然分裂，拔插堆叠线无用后手动重启设备后回复正常，

logfile里显示先是1/1/1变为inactive状态，1/1/2无法接收irf pkt，然后BFD MAD检测，然后1/1/2无法接收irf pkt；然后链路_超时：由于心跳超时，IRF端口1关闭。然后链路故障：IRF端口1故障；最后报板卡故障。

想知道突然分裂可能是什么造成的？望告知，谢谢！

%@10207%Oct 17 10:57:48:058 2021 D06_D07-S6520 DRVPLAT/4/DrvDebug:

 The port Forty1/1/1 has been changed to inactive status, please check.

%@10208%Oct 17 10:57:58:170 2021 D06_D07-S6520 DRVPLAT/4/DrvDebug:

 The port Forty1/1/2 can't receive irf pkt, please check.

%@10209%Oct 17 10:57:58:700 2021 D06_D07-S6520 BFD/5/BFD_CHANGE_FSM: Sess[192.168.255.1/192.168.255.2, LD/RD:129/129, Interface:Vlan4094, SessType:Ctrl, LinkType:INET], Ver:1, Sta: DOWN->INIT, Diag: 0 (No Diagnostic)

%@10210%Oct 17 10:57:58:705 2021 D06_D07-S6520 BFD/5/BFD_CHANGE_FSM: Sess[192.168.255.1/192.168.255.2, LD/RD:129/129, Interface:Vlan4094, SessType:Ctrl, LinkType:INET], Ver:1, Sta: INIT->UP, Diag: 0 (No Diagnostic)

%@10211%Oct 17 10:57:58:714 2021 D06_D07-S6520 BFD/5/BFD_CHANGE_FSM: Sess[192.168.255.1/192.168.255.2, LD/RD:129/129, Interface:Vlan4094, SessType:Ctrl, LinkType:INET], Ver:1, Sta: UP->DOWN, Diag: 1 (Control Detection Time Expired)

%@10212%Oct 17 10:58:07:209 2021 D06_D07-S6520 DRVPLAT/4/DrvDebug:

 The port Forty1/1/2 can't receive irf pkt, please check.

%@10213%Oct 17 10:58:08:087 2021 D06_D07-S6520 STM/2/STM_LINK_TIMEOUT: IRF port 1 went down because the heartbeat timed out.

%@10214%Oct 17 10:58:08:094 2021 D06_D07-S6520 STM/3/STM_LINK_DOWN: IRF port 1 went down.

%@10215%Oct 17 10:58:08:159 2021 D06_D07-S6520 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/1 of aggregation group BAGG101 changed to the inactive state, because the physical state of the port is down.

%@10216%Oct 17 10:58:08:169 2021 D06_D07-S6520 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/2 of aggregation group BAGG102 changed to the inactive state, because the physical state of the port is down.

%@10217%Oct 17 10:58:08:180 2021 D06_D07-S6520 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/3 of aggregation group BAGG103 changed to the inactive state, because the physical state of the port is down.

%@10218%Oct 17 10:58:08:189 2021 D06_D07-S6520 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/4 of aggregation group BAGG104 changed to the inactive state, because the physical state of the port is down.

%@10219%Oct 17 10:58:08:197 2021 D06_D07-S6520 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/5 of aggregation group BAGG105 changed to the inactive state, because the physical state of the port is down.

%@10220%Oct 17 10:58:08:204 2021 D06_D07-S6520 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/6 of aggregation group BAGG106 changed to the inactive state, because the physical state of the port is down.

%@10221%Oct 17 10:58:08:210 2021 D06_D07-S6520 DEV/2/BOARD_STATE_FAULT: Board state changed to Fault on slot 2, type is MAIN_BOARD_TYPE_S6520X_54QC_EI.