[c-nsp] best way to announce ibgp routes

matthew zeier mrz at velvet.org
Tue Aug 16 15:22:02 EDT 2005


> 
> Regardless of whether you initiate the routes at the borders or the cores,
> keep your customer assigned addresses in BGP and your infrastructure routes
> in your IGP.  Don't mix. The IGP's purpose is to provide the routing
> infrastructure to support the BGP sessions and infrastructure management.
> Nothing more.
> 
> As Justin indicated, you could announce the routes from the borders and
> allow the cores to simply be route reflectors.  On the other hand,
> initiating the routes from the cores (where the customers are located) may
> be beneficial if you wish to have those routes withdrawn if the
> interface(s) to the customer segments/sites goes down.

Customers are all in my address space, not their own.  So off the core I might 
assign a /29 to a customer out of my /19.



--
matthew zeier - "Curiosity is a willing, a proud, an eager confession
of ignorance." - Leonard Rubenstein


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