[TriLUG] Odd Network problem

[Jeff Groves]

Here's my guess:

   Full/Half duplex mis-matches or autosense failure causing the same

Router is expecting something different than the network card is set for..


Jeff G.

Chris Knowles wrote:
> Got a weird one.  
> 
> (Oh, regarding that crashing box, further investigation pointed at the 
> motherboard as a culprit.)
> 
> I've got a Nagios server in place that's been happily warning us of doom and 
> gloom for over a year.  It's one of the great success stories for Linux at 
> our company.
> 
> Until now.
> 
> Starting this morning, it has been randomly unable to ping various boxes on 
> our network.  That is, until you ping the nagios server from the "unpingable" 
> server.   Then Nagios can ping that server all it wants. 
> 
> This is all local network, no routing involved.  
> 
> Any idears as to what could be causing this?  (This is a simple switched 
> network, and other than this seems to be working fine.)
> 
> Any help is appreciated.  
> 
> CJK
> 

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