[c-nsp] OSPF Dead Timer issues

[Adam Greene]

Very interesting ... we're seeing dead timer issues on the link between an
Extreme Summit200-24 and a Cisco 2621XM, too. The Extreme is running
7.1e.1b5. Every few days, we see the issue occur out of the blue.

Thinking of upgrading the Extreme to a Cisco3750 ...

Adam

----- Original Message ----- 
From: "Gert Doering" <gert at greenie.muc.de>
To: <cisco-nsp at bppb.net>
Cc: <cisco-nsp at puck.nether.net>
Sent: Tuesday, October 25, 2005 8:13 AM
Subject: Re: [c-nsp] OSPF Dead Timer issues


> Hi,
>
> On Tue, Oct 25, 2005 at 12:53:38PM +0100, cisco-nsp at bppb.net wrote:
> > The two units are connected via an ethernet vlan (6500 sup720 gi1/2.101,
> > 7200  io-2fe fa0/0.101) and a /30. The VLAN is handled by an
> > Extreme Summit 48i, which has ospf disabled on it.
>
> Make sure you have the very latest firmware for the Extreme.
>
> We've run into a very similar issue with a Summit 48 (no i), and the
> essence seems to be "Extreme switches know that multicast is specialy in
> some way, but they don't *really* know what to do with it, so the boxes
> just drop every other multicast packet".
>
> Effectively killing OSPF and EIGRP...
>
> gert
> -- 
> USENET is *not* the non-clickable part of WWW!
>
//www.muc.de/~gert/
> Gert Doering - Munich, Germany
gert at greenie.muc.de
> fax: +49-89-35655025
gert at net.informatik.tu-muenchen.de
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