Ascend Archive
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Re: (ASCEND) Max flooding our ethernet backbone


 Any chance you could get a linux box on the segment and run tcpdump, or
run some sort of sniffer on that physical segment?

Jason Nealis
Director Internet Operations / Network Access
Erols Internet (An RCN Company)


On Thu, 27 Aug 1998, Gavin Cato wrote:

> Hi Everyone,
> 
> We have 2 Max4000's in one of our POP's that feed into a bay 350T 10/100
> switch.
> 
> Since yesterday morning one of the Maxes is flooding our Ethernet backbone
> in intervals of roughly 10-15 seconds (sometimes slightly longer)
> 
> When it does it all the lights on the hub light up & stay *constant*
> 
> My MRTG graph shows that when it happens every single machine connected to
> the ethernet suddently shoots up by about 50-60kb/s
> 
> If I unplug the Max during one of these spurts, it immediately goes away.
> If I unplug it & leave it out - everything runs fine.
> 
> The MRTG graph that I have that sums up all 16 ports on the hub into 1
> graph shows it typically sending about 700kb/s. Typically this hub sends
> about 60-100kb/s
> 
> Any ideas? I'm running out of things to do. Both Maxes are running 6.0.2
> and have been fine for serveral months without changing anything. Remember
> only 1 is playing up.
> 
> I upgraded it to 6.1.7 but that didn't change the situation so I
> downgraded it back to 6.0.2
> 
> Any clues?
> 
> thanks
> 
> 
> Gavin Cato
> System Administrator
> Geko Internet P/L
> (02) 9439-1999
> 
> On Wed, 26 Aug 1998 msheehan@sctcorp.com wrote:
> 
> > Upgraded our Max 4048 from 6.1.3 to 6.1.7.  It's been in
> > production for 2 days.  Just received the following fatal error
> > and reboot after 6 day of uptime.  Seem to happen while I was in
> > the Telnet screen and went to put in the security profile 2
> > password.  Might have been a coincidence.  Just wanted to pass
> > along for those thinking of upgrading.
> > 
> > SYSTEM IS UP:  Index: 100  Load: ftk.m40 Revision: 6.1.7
> >         Date: 08/19/1998.       Time: 14:43:24
> > 
> > FATAL ERROR:  Index: 1  Load: ftk.m40 Revision: 6.1.7
> >         Date: 08/26/1998.       Time: 15:55:15
> >         Location: b011722c b0118778 b004c3bc b00d0718 b004cddc 00
> > 000000
> > 
> > SYSTEM IS UP:  Index: 100  Load: ftk.m40 Revision: 6.1.7
> >         Date: 08/26/1998.       Time: 15:57:26
> > 
> > Maryann Sheehan
> > SCT Corp.
> > msheehan@sctcorp.com
> > 
> > 
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> > 
> 
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> 

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