Peering + Transit Circuits

Wed Aug 19 17:54:48 UTC 2015

Hi, Max --

On 19/08/2015 17:36, Max Tulyev <maxtul at netassist.ua> wrote:

>My solution is:
>
>1. Don't care.
>2. If some peer steal your transit, and it is noticeable amount of
>traffic causing some problems for you - investigate and terminate that peer.

Unless this bandwidth fraud is taking place over a public peering LAN (IX).  You could find that a non-peer is “stealing bandwidth”.  In which case, tell the IX operator (they *do* care, and *do* want to stop abusive or fraudulent behaviour).  

You can, if paranoid, apply some l2/3 filters to only hear from expected peers at the IX (which prevents non-peers from pointing statics at you, but not peers though.)  How paranoid shall we take it ?  You can also - with a small enough customer footprint - perhaps put each peer into their own VRF and apply policies which prohibit forwarding except to customer prefixes.  

-a