Re: [nsp] line protocol down/up error mesgs

From: Stephen Balbach (stephen@clark.net)
Date: Fri Dec 12 1997 - 16:40:22 EST


Agreed. But it only happens on one end, no error messages from the other
end. And it happens very randomly throughout the the network. Weve got
about 40 T1's and it happens to one T1 then might not happen again for
months. But about 1/2 the 40 T1's get it at sometime or another very
randomly dispersed over time and geography. Thats what leads me to belive
a IOS bug in false positives - running 11.1(4), soon upgradeing to
11.1(15) - just wondering if anyone else has seen somthing similair.

On Fri, 12 Dec 1997, Paul Ferguson wrote:

> Looks like a circuit problem to me.
>
> - paul
>
> At 04:16 PM 12/12/97 -0500, Stephen Balbach wrote:
>
> >
> >Seeing a lot of line protocol bounces on T1's in log files:
> >
> >For example:
> >
> >Dec 10 02:48:27 e1-1.baltimore.mae-east.clark.net 111498:
> >%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/5, changed state
> >to down
> >Dec 10 02:48:27 e1-1.baltimore.mae-east.clark.net 111499:
> >%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/5, changed state
> >to up
> >
> >
> >
> >
> >Bounces up and down in < 1 second - logs only show it for one end of the
> >T1 not the other.
> >
> >Not sure if this is real, false positives, etc..
> >
> >Anyone seen this before?
> >
> > Stb
> >
>



This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:14 EDT