[hobbit] strange result in fping by hobbit and fping by yours truly

[Dennis Ortsen]

These terminals are not in DNS. There's also a large amount of Cisco
accesspoints that are fpinged the same way. These AP's are also not in DNS.
The number of AP's is even larger than the number of terminals: 247.

> -----Oorspronkelijk bericht-----
> Van: Hubbard, Greg L [mailto:greg.hubbard at eds.com] 
> Verzonden: vrijdag 2 november 2007 15:21
> Aan: hobbit at hswn.dk
> Onderwerp: RE: [hobbit] strange result in fping by hobbit and 
> fping by yours truly
> 
> DNS? 
> 
> -----Original Message-----
> From: Dennis Ortsen [mailto:dortsen at gmail.com]
> Sent: Friday, November 02, 2007 7:47 AM
> To: hobbit at hswn.dk
> Subject: [hobbit] strange result in fping by hobbit and fping 
> by yours truly
> 
> 
> Hi everyone,
> 
> I've got a somewhat strange issue with fping in hobbit.
> 
> I've got a list of about 122 terminals that are used for a chipcard
> payment system. Each one of them has an ip-address and connects to a
> server to process the payments. Every now and then the terminals loose
> the connection or whatever, they need to be reset before they can
> process the payments again on the server. I thought I might use Hobbit
> to ping all the terminals to see if they still respond to a ping. If
> they don't reply anymore, they need a reset.
> 
> I only do a conn test on an ip-address. I use the full path 
> to fping in
> hobbitserver.cfg, without any extra parameters. When hobbit starts
> testing the connection, only 14 terminals respond to a ping, 
> but when I
> execute a fping myself (as the hobbit user) in a shell to the same
> amount of terminals, I get a totally different result, instead of 14
> responding terminals, I get 95 responding terminals with 
> fping! It's not
> just a lucky shot, I can keep on trying these terminals, the huge
> difference remains whether I fping them myself or when hobbit fpings
> them.
> 
> I'm running hobbit 4.2.0. According to bbtest I have 806 
> hosts that are
> pinged, that takes about 26 seconds to complete. To complete all tests
> (954), it takes about 47 seconds.
> 
> Does anyone have a clue why specifically these terminals have such a
> difference in hobbit ping and a ping performed by myself?
> 
> I can't explain it, and it doesn't seem like a timeout (latency) issue
> to me either.
> 
> Thanks in advance,
> 
> Br.
> 
> Dennis
> 
> 
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