插卡AC做跨框IRF,备机重启
插卡AC做跨框IRF,备机重启
1、通过备机重启记录,查看其重启原因为IRF merge soft reboot,即IRF建立导致的重启,既然是IRF建立导致的重启,那么之前一定是IRF分裂了,我们再看看IRF分裂原因是什么。
Slot 2:
******************************************************************************
PowerOn BootTimes : 29
Watchdog BootTimes : 0
Software BootTimes : 35
Hardware BootTimes : 0
MotherBoard BootTimes: 2
Backup BootTimes : 2
SlotOut BootTimes : 0
Current Boot Type : Software-boot
Current Running Time: 360(s)
Running Time : 5(d)0(h)
*** Boot History(Startup Time and Reason) ***
2020-09-30 14:29:00 IRF merge soft reboot
2、从AC的日志信息来看,IRF分裂原因是hello报文超时
%Sep 30 14:20:16:463 2020 AC1 IRF/4/IRF_HELLO_TIMEOUT: -Slot=2; IRF member 1 hello timed out.
%Sep 30 14:20:16:495 2020 AC1 DEV/3/BOARD_REMOVED: Board was removed from slot 2, type is LSUM1WCMX20RT.
%Sep 30 14:20:16:547 2020 AC1 LAGG/6/LAGG_INACTIVE_PHYSTATE: Member port XGE2/0/2 of aggregation group BAGG1 changed to the inactive state, because the physical state of the port is down.
%Sep 30 14:20:28:645 2020 AC1 IRF/4/IRF_HELLO_TIMEOUT: IRF member 2 hello timed out.
3、查看AC的CPU进程,发现转发进程已经满了,所以无法及时处理hello报文,那为什么转发进程会跑满呢?
4、查看AC接口有大量的广播报文,这一点明显是不正常的
Input (total): 84820337960 packets, 82953098390630 bytes
57016863 unicasts, 83579574663 broadcasts, 1183746434 multicasts, 0 pauses
5、查看交换机侧,发现有环路
至此问题得到解决。
1、解决环路问题
2、AC做跨框IRF时,交换机上必须关闭STP功能
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