In my case the netview server and the switch i was trying to ping is on the
same subnet, it's connected with 100mbit fibre to the switch that the
netview servers is connected to.
/Christian
-----Original Message-----
From: Chris J. Garlick [mailto:chris.garlick@EU.EFFEM.COM]
Sent: Wednesday, August 25, 1999 5:44 PM
To: NV-L@UCSBVM.UCSB.EDU
Subject: Re: ping response
... is it possible that the web server and Netview box are on different IP
segments..? I have observed cases of messed up routers passing some
sub-protocols (SNMP, HTTP etc) but not others (eg ICMP (ping).....) ?
The router may have been bounced/reset later, accounting for the mysterious
'fix' ...?
Kind Regards
Please respond to Discussion of IBM NetView and POLYCENTER Manager on
NetView <NV-L@UCSBVM.ucsb.edu>
To: NV-L@UCSBVM.ucsb.edu
cc:
Subject: Re: ping response
Just curious - AIX 4.3.2? We had a similar problem a while back. The
problem
just "went away" - I am still puzzled over it. We could not ping a certain
web server from NetView but could ping the server from other hosts. Now to
add to my confusion - all the while that pings were failing I could do SNMP
gets and HTTP requests just fine - only pings were failing. I might add
that
two different ping programs were tried (the AIX supplied one and the public
utility called "fping") - both failed. It was not an arp cache problem. As
mysteriously as the problem appeared it just went away.
Blaine Owens
Eastman Chemical Company
Phone - (423)-229-3579
Fax - (423)-229-1188
bowens@eastman.com
> -----Original Message-----
> From: John Creasey [SMTP:creasey@OZEMAIL.COM.AU]
> Sent: Wednesday, August 25, 1999 9:01 AM
> To: NV-L@UCSBVM.ucsb.edu
> Subject: Re: ping response
>
> Recently our network operators reported a very similar thing
> happening. They were certain an interface was up but netview
> couldn't ping it. I wasnt present so I was very much baffled
> by their claims.
>
> Have you tried to reproduce the problem? If it is reproducible
> it could be a bonafide bug.
>
>
> > -----Original Message-----
> > From: Discussion of IBM NetView and POLYCENTER Manager on NetView
> > [mailto:NV-L@UCSBVM.UCSB.EDU]On Behalf Of Frantsen Christian
> > Sent: Wednesday, 25 August 1999 19:26
> > To: NV-L@UCSBVM.UCSB.EDU
> > Subject: ping response
> >
> >
> > I noticed something strange the other day when trying some
> > things in our
> > lab.
> >
> > I unplugged a switch by removing the TP-cord and i got a node down in
> > netview (obviously =))
> > then I put the cord back in and I couldn't ping the switch
> > from the netview
> > map, there was no response,
> > I got response from it if I pinged it from a machine right
> > next to me, I
> > tried again from netview, no response
> > then I made a ping from the commandline on the
> > netview-machine. Now i got a
> > response and after that it worked from the map again.
> >
> > Anyone got some feedback on this?
> >
> > -----------------------------------------
> > Christian Frantsen
> > Technical Operations
> >
> > Internoc Scandinavia AB
> > Tel: +46-36-194843
> > Fax: +46-36-194651
> > http://www.internoc.se
> >
|