[CentOS] Networking just stopped working

Thu Jul 8 14:20:34 UTC 2010
Chan Chung Hang Christopher <christopher.chan at bradbury.edu.hk>

JohnS wrote:
> On Thu, 2010-07-08 at 07:51 -0500, Les Mikesell wrote:
>> I think some bridge or vlan scenarios require promiscuous mode (and the 
>> corresponding disabling of hardware acceleration).  Maybe the real issue is that 
>>   something accidentally disabled it and you now only work when tcpdump 
>> re-enables it.  I'm not sure how this is supposed to be managed atomically when 
>> multiple programs may manipulate it and it needs to be propagated across 
>> multiple bonded nics, but maybe something went wrong there.  At least some 
>> things log the change so maybe you can get a hint about when it was turned on 
>> and off.
> ---
> Check out /proc/net/bonding/bond/YOUR_BOND.  Make sure your slave IDs
> are the same as in aggregator ID.  If not it will cause the problem your
> having.  Bad NIC hardware also it's failing over for a reason as the log
> showed.

Okay, I'll take a look tomorrow when I get in to work.