RE: Core Network Design

I would think you would be better served to keep BGP at your edge,
perhaps with iBGP between edges, and use a quicker protocol such as
IS-IS at your core.  

Just my surface thoughts.

Kevin
 

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Jawaid Bazyar
> Sent: Monday, August 06, 2007 10:21 AM
> To: [email protected]
> Subject: Core Network Design
> 
> Hi,
> 
> I am redesigning our core network, and wanted to query your 
> collective wisdom and experience.
> 
> I need to solve the following issues:
>     IP DSCP QoS
>     Scalability from gigabit to 10-gigabit in the future
>     redundancy, including fast handling of component failure
> 
> My initial thoughts are to use a pair of L3 switches at the 
> core, each with a full BGP routing table, so that outbound 
> packets go directly to the correct one of multiple Internet 
> edge routers.
> 
> However, in my experience, it takes BGP a long time now to 
> converge with 220,000 routes in the table, which provides 
> wacky behavior in the meantime.
> 
> Any thoughts on a fault-tolerant architecture with fast 
> failover characteristics?
> 
> -- 
> <http://www.foreThought.net> 	Jawaid Bazyar
> President
> [email protected] <email:[email protected]>
> ph 303.815.1814
> fax 303.815.1001
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_______________________________________________
"Eat sushi frequently". - Avi
[email protected] is the human contact address.
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