nanog mailing list archives

Re: Trusting BGP sessions


From: Sean Donelan <sean () donelan com>
Date: 14 Nov 2000 23:48:22 -0800


Ok, let me show why this isn't a valid reason.

Me: Will you peer with me on both coasts with this bandwidth using this
protocol?

BigISP: No, because we don't trust .....

Me: Will you sell me the same, identical connections in multiple locations
using the same, identical protocols?

BigISP: Of course, yes.

Me: If you have systems in place to protect your network against my network
as a customer, why don't those exact same systems work when you connect
the same network, router and protocol as a peer?

BigISP: Its too complicated, and you wouldn't understand.


Question: historically have more routing snafus originated in "customer"
BGP sessions or in "peer" BGP sessions?


On Tue, 14 November 2000, David Diaz wrote:
Sorry, Yes.
My original answer mentioned in the past.  I think we all understand 
that the "business" side has entered.

However someone connecting to your peering router can create a create 
deal of havoc.  Some of the older routers could have a major problem 
with floods of tens of thousands or hundreds of thousands of routes 
being added or withdrawn quickly.  At the same time if the peer is 
flapping and rerouting hunderds of megs to different exchange points, 
first east coast then west, it could cause a serious problem.  I know 
you know that Sean.






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