[56190] in North American Network Operators' Group
Re: ebgp-multihop
daemon@ATHENA.MIT.EDU (Steve Carter)
Thu Feb 27 18:50:04 2003
Date: Thu, 27 Feb 2003 16:45:37 -0700
From: Steve Carter <scarter@pobox.com>
To: Tim Rand <randt@ohsu.edu>
Cc: nanog@merit.edu
In-Reply-To: <se5e3081.046@gwsmtp.ohsu.edu>
Errors-To: owner-nanog-outgoing@merit.edu
* Tim Rand <randt@ohsu.edu> [030227 16:39]:
> Hi -
> I have searched the archives but have not found an answer to my question
> - is there any danger in using excessively high TTL values with
> ebgp-multihop? For example, neighbor x.x.x.x ebgp-multihop 255 - 255 is
> generally much higher than needed, but is there any risk/danger ??
> Thanks in advance. - Tim
There is a potential for blackholing traffic should you be dual (or multi)
homed and if the ebgp-multihop session were able to re-establish over
another path. Better to keep it close to what you'd expect your maximum
number of hops to be to reduce the potential for undesirable modes.
-Steve
