From: Tru64 User (tru64user@yahoo.com)
Date: Wed Apr 24 2002 - 08:59:37 EDT
Thanks much to the list for all troubleshooting
tips.....which mostly pointed to switch settings.
Hardcoding NIC settings at the port (100-Half Duplex)
solved the problem. Apparently there was a power surge
in the switch room, and it got reset........
Everything is back to normal now.
_Thanks All
--- Tru64 User <tru64user@yahoo.com> wrote:
> Yet another update.
> First thanks to Selden Ball, Steve Herber, J Bacher,
> B
> Vickers and Kurt Ludwig for their initial
> suggestions.
>
> All seem to be suggesting port problems more or
> less,
> and DNS timeouts.
>
> #Declaring variables
> tu0 = DEC Tulip (10Mbps), DECchip 21040: Rev. 2.3
> tu1 = DEC Tulip (10/100) DECchip 21140 Rev. 2.0
>
>
>
> In my territory, i tested changing speed and modes
> on
> the card. Setting speed (of tu1)to 10Mbs, kills the
> card altogether, it becomes un-pingable even from
> same
> host thru tu0(dual NICS)
> It becomes pingable at speed 100Mbps, either half
> duplex or full. But, round trip stats are bad, with
> an
> average of 30ms over 5mins period.
>
> Also, at 100Mbs for tu1, it affects tu0 and makes it
> have intermittent connectivity, thus defeating
> everything.
>
> At 10Mbps for tu1, it dies (as said b4), but tu0
> then
> works perfectly!!!
> But wait, there is more!!At this point, I cannot ssh
> from another host on same subnet, to any other
> host.....when tu1 is down....i get errors "host
> "tu1"
> is not responding, still trying. However, i can
> telnet
> into tu0 or telnet into any other host, but not ssh.
> Any takers for the ssh problem??
>
> At the mean time, i have to place a call with the
> company managing centerwide networks, to try and
> figure out the port problems, if any, and dns
> timeouts.
>
> _thanks all
>
> Richard
> --- Selden E Ball Jr <SEB@LNS62.LNS.CORNELL.EDU>
> wrote:
> > Check the state of the network switches between
> the
> > NCDs and the
> > load hosts. Your symptoms are consistant with the
> > switch ports being
> > set to the wrong duplexity or, less likely, a
> > heavily overloaded switch.
> >
> > Maybe someone upgraded the switch firmware
> > overnight?
> > Or was there a power glitch? The switch ports may
> > have
> > came up in the wrong state when the switch(es)
> > rebooted.
> >
> > If the switches autonegotiate the speeds, try
> > unplugging the NCD
> > ethernet cables briefly. That'll force a
> > renegotiation.
> >
> > I hope this helps a little.
> >
> > Selden
> > ======
> > Selden E. Ball, Jr.
> >
> >
> > you wrote
> > > Greetings,
> >
> > > I have a couple of NCD X-terminals that all just
> > > decided not to boot today.
> > > They all just hang, and seem to take forever
> > reading
> > > font directory. Have them configured to boot
> thru
> > tftp
> > > from 4.0g systems. Changing the primary host for
> > > bootup doesn't change a thing......which makes
> me
> > > wonder where to look.
> > > Multiple Xterms, trying to boot from multiple
> > hosts,
> > > same problem, just hangs. I can log into server
> > > without any problem via exceed from PC, and all
> > logs
> > > are happy......tcpdump shows regular
> > > interaction,between exterm and server.
> > > Any pointers please??
> >
> > > I gave one of them 15minutes, and finally i got
> > the
> > > login screen, then after password input, it
> hangs
> > one
> > > more time, then goes to a completely black
> > screen!!
> > > Everything was happy as of last
> night....nightmare
> > > started this morning.......i also restart links
> > > (ifoconfig tu0 up/down)...no effect
> >
> > > I am clueless at this point
> > > Any pointers will be very helpful
> >
> > > =====
> >
> >
> > >
> __________________________________________________
> > > Do You Yahoo!?
> > > Yahoo! Games - play chess, backgammon, pool and
> > more
> > > http://games.yahoo.com/
>
>
> =====
>
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Games - play chess, backgammon, pool and more
> http://games.yahoo.com/
=====
__________________________________________________
Do You Yahoo!?
Yahoo! Games - play chess, backgammon, pool and more
http://games.yahoo.com/
This archive was generated by hypermail 2.1.7 : Sat Apr 12 2008 - 10:48:39 EDT