RE: Router gets hurt!

[Jason Weisberger <jweis () softaware com>]

I should mention that these are not my NT machines, they're all colocated
customers that insist on using NT as a server platform.

It seems simply turning the election off has cleared it all up.


On Tue, 24 Nov 1998, Eric Germann wrote:

> You may also wish to implement WINS so it doesn't use broadcast name
> resolution techniques.
>
> Also, if you have any WfWg machines, there was a fix years ago where
> they wouldn't relinquish a master browser role.  MS issued a fix back
> in the 3.51 days.  Similar situation, election wars, although it never
> took out Cat 5's or 7206's on the networks we used.
>
> Surely you're not doing broadcast flooding on the Crisco, are you?
>
> Alternatively, you can force one machine to be the master browser and
> the others to be backup browsers which pretty much obviates the need
> for an election.
>
> I would suggest http://support.microsoft.com and search for Preferred
> Master Browser.
>
> Eric
>
>
>
>
>
> ---"James D. Wilson"  wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > I think you mean "browse master" and if your switches are falling
> > apart by browser elections you probably have more serious problems on
> > your network than NetBios traffic (however odorous it may "smell".) 
> > I'd take a good look at your spanning tree configuration and
> > statistics on your switches.  You could also be running into problems
> > with bdpu traffic confusion in your switches spanning tree if you are
> > also bridging and your bridge group priority 0 is not on your local
> > side of your bridge group.
> >
> > - -----Original Message-----
> > From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of
> > Jason Weisberger
> > Sent: Monday, November 23, 1998 8:02 PM
> > To: nanog () merit edu
> > Subject: Router gets hurt!
> >
> >
> >
> > Discovered today that NT has the built in ability to drown your
> > network
> > and stomp on the routers cpu. Seems if someone sets up 2 NT domain
> > masters
> > or whatever that Netbios garbage is called, they attempt to "hold an
> > election." The election is comprised of slamming every machine it can
> > find
> > and then every broadcast address it can think of with udp on port 137.
> >
> > After a few minutes of it an RSP4 gets real tired and you start losing
> > packets as well as the switches all falling apart after trying to
> > forward
> > the zillion mbits/sec of useless data.
> >
> > Anyone else seen anything like this?
> >
> > - --
> > Jason Weisberger
> > Chief Technology Officer
> > SoftAware, Inc. 310/305-0275
> >
> >
> >
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--
Jason Weisberger
Chief Technology Officer
SoftAware, Inc. 310/305-0275