Re: Strange BGP announcement

[I Am Not An Isp <patrick () ianai net>]

At 07:47 PM 11/17/98 +0000, Andrew Bangs wrote:
> patrick () ianai net wrote:

> I don't recall saying that, or anything about route selection.
> I don't want all backbone routers (or any of them, for that matter)
> ignoring Update messages (or worse, propagating the announcements) with
> malformed AS_PATH attributes when they should be returning a NOTIFY and
> closing the BGP session. 

You said you wanted routers that followed the RFC.  The RFC does not
mention list AS_PATH length as a route selection criteria.  I have been
told that the draft for the next rev specifically prohibits using AS_PATH
length as a route selection criteria.

I kinda like using AS_PATH length.  It's not perfect - and I'm definitely
open to suggestions - but for now it's working.  And changing that in
today's environment would be ... monumental to say the least.

OTOH, I completely agree that the routers should have *not* passed on
malformed announcements, and behaving improperly to certain errors.

> Andrew Bangs, Network Engineering Manager, Demon Internet Ltd

TTFN,
patrick

I Am Not An Isp
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