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Re: Odd multicast packet loss to Nysernet - it's local


Chronological Thread 
  • From: zaid <>
  • To: , Bill Nickless <>
  • Cc: "Kevin C. Almeroth" <>, ,
  • Subject: Re: Odd multicast packet loss to Nysernet - it's local
  • Date: Thu, 15 Feb 2001 16:09:48 -0500

We also discovered a network timing miss-config on our side related to
the
Frame circuit. We are in the process of correcting that.

Zaid
-----Original Message-----
From: Marshall Eubanks
<>
To: Bill Nickless
<>
Cc: Kevin C. Almeroth
<>;


<>;


<>
Date: Thursday, February 15, 2001 3:46 PM
Subject: Re: Odd multicast packet loss to Nysernet - it's local


Bill Nickless wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
>
> At 06:12 AM 2/15/2001 -0800, Kevin C. Almeroth wrote:
> > >>It would be interesting to see where along the path this
happens.
> > >>Maybe vbns could try this internally and see if it is
repeatable.
> >
> >Funny... I had a screen shot from vic/vat that showed this exact
> >same thing... probably from an IETF about 2 years ago. I just
> >deleted it yesterday in a clean-up phase. I'll see if I can get
> >it back.
>
> Now that I've thought about it a little more, I seem to recall my
> experience with this was related to the periodic 60-second flooding
of
> DVMRP routes. That is, the flooding of routes consumed some
resource
> (bandwidth or router CPU) roughly every minute.
>
> ===
> Bill Nickless http://www.mcs.anl.gov/people/nickless +1 630
252 7390
> PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7

>

Hello;

Well, it looks like Al has figured out the problem - once we were
sure it
was in the first hop to vBNS it was fairly straightfoward.

If you want to see how well the fix worked, look at
http://www.multicasttech.com/rr/nysernet.vt.ps

Thanks to all for your help !!!!

--
Regards
Marshall Eubanks



T.M. Eubanks
Multicast Technologies, Inc
10301 Democracy Lane, Suite 410
Fairfax, Virginia 22030
Phone : 703-293-9624
Fax : 703-293-9609
e-mail :




http://www.on-the-i.com http://www.buzzwaves.com




  • Re: Odd multicast packet loss to Nysernet - it's local, zaid, 02/15/2001

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