On Wed, 19 Apr 2000, Mark Kent wrote:
Errr, isn't 'settlement based peering' synonomous with 'usage-based transit' ?
transit implies that the "peer" will show your routes outside their network, hence allowing traffic from some other network to "transit" their network on the way to your network. Whereas 'settlement based peering' is just charging for access to your/their network only.
Does it? I don't agree. We often sell transit to customers, to which we only send routes of peers, and a discount.
Of course, the fact that one can make 'usage-based transit' act like 'settlement based peering' both technically and financially with the use of bgp communities could blur the distinction.
Actually, now that I think about it, I was wrong; usage based transit implies that the more you push/pull, the more you pay; settlement based peering could imply that, or that you pay for the delta between the two.