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LPAR NIC Problem

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Operating Systems AIX LPAR NIC Problem
# 1  
Old 09-30-2014
LPAR NIC Problem

On all our lpars we have our main interface set up and a backup network interface. On a number of our lpars those connections go to a down state for no apparent reason. They are still attached but they show up as "*en1" in netstat. Has anyone else come across this issue or know why an interface will go down? I can't find a reason for this behavior.
# 2  
Old 10-01-2014
Hi ,

So do you mean ether channel is configured?


how are you identifying the interface went down?
Unpingable or errpt or ifconfig ?

Please post the output..
# 3  
Old 10-01-2014
It isn't etherchannel, that is done on the VIO layer. It is just a virtual nic dedicated to our backup network. And there is no errors on the device, it is discovered because our backups fail because it can't communicate on that network. When I do a "netstat -i" it shows "*en1" so it is attached but not up. I believe it happens on system start up. It attaches the NIC but doesn't bring it all the way up.
# 4  
Old 10-01-2014

You will be able to bring this up using the ifconfig command, please note that in AIX this command does not persist after a reboot - also I can say from experience (A deceased P695) that great care has to be taken when using this command on AIX.


# 5  
Old 10-27-2014
But how is ethernet on vios side?
One SEA on each vios (primary/backup)?
All ethernet errors are on vios side. see errlog...

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