From few days earlier, we are detecting a problem on servers that boot: the switch detects a loop and cuts the MAC learning for 180sec.
It seems that this is a bug,which is fixed in the new version of NX-OS.
We will update the N5 pair on the network 176.31.232/24 in order to check if this bug will be properly fixed there.
No cutoff is expected on the service.
The update is \"normally\" performed hot.
Update(s):
Date: 2011-12-30 03:38:36 UTC Done.
The traffic is stable again.
Date: 2011-12-30 03:37:23 UTC Following the yesterday's update, we still find problems.
We will restart the N5 one by one.
Date: 2011-12-30 03:36:05 UTC We have cut all the FEX and restored them.This may have caused a small cut-off as long as the system gets restored.
The problem is finally fixed.The condition of the two N5 compared to FEX is good and there is no more loop.
Long live Cisco! Long live Nexus!and long live France!
Date: 2011-12-30 03:29:08 UTC We'll cut one of the FEX.
Date: 2011-12-30 03:28:02 UTC Done,no packtes loss: 0,this is top; thanks to Nixus.
Date: 2011-12-30 03:26:40 UTC The master is done.
Now we'll take the slave.