[NANOG] Re: question about peering relationships

["Elmar K. Bins via NANOG" <nanog () lists nanog org>]

nanog () lists nanog org (Sriram, Kotikalapudi (Fed) via NANOG) wrote:

> Does the following ever happen in reality? Do you think it is strange and unlikely?
> The lateral (i.e., non-transit) peer of an AS is also the transit provider of the AS's transit provider.  Example: AS 
> A has AS B as a transit provider and AS C as a lateral peer, and AS C is a transit provider of AS B.

Yes, and it's very often a mess traffic-engineering wise...


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