[108652] in North American Network Operators' Group
Re: Network topology [Solved]
daemon@ATHENA.MIT.EDU (Colin Alston)
Wed Oct 15 14:35:43 2008
Date: Wed, 15 Oct 2008 20:35:33 +0200
From: Colin Alston <karnaugh@karnaugh.za.net>
To: NANOG list <nanog@nanog.org>
In-Reply-To: <48F61A6C.5050201@karnaugh.za.net>
Errors-To: nanog-bounces@nanog.org
On 2008/10/15 06:29 PM Colin Alston wrote:
> Is there any kind of cunning trick to detect standard layer2 switches
> along a path without stuff like STP?
Apparently there isn't. Lots of people mentioned other tools, the
problem there is they have one thing in common which is polling SNMP.
I think it scales badly in general. I was hoping to find a more
intelligent way of, I guess, doing an ARP/MAC based traceroute by
checking LLC 802.2 headers or something. Yes, it might have been
easier if I hoped for it to rain money :)
Maybe there should be something (I mean like, someone should come up
with a standard :P) to trace switches in a path... Problem is I think
even then the simple devices won't bother to support it.
