RE: [isp-bgp] Size of iBGP Mesh

["Darrell Hyde" <DHyde@...>]

The biggest constraint on the size of an IBGP mesh is memory. Let's say
you have 5 border routers each taking a full view from a different
provider, and some core switches taking a full view from each border
router - while your border routers will only need enough memory for a
single view, the core switches in this case will need enough memory to
hold all 5 views in their RIB.

> -----Original Message-----
> From: Rick Kunkel [mailto:kunkel@...] 
> Sent: Friday, May 04, 2007 2:31 PM
> To: isp-bgp@isp-bgp.com
> Subject: [isp-bgp] Size of iBGP Mesh
> 
> Heya folks,
> 
> I'd read somewhere recently that an iBGP mesh shouldn't 
> contain more than
> a few routers.  I'm aware of route-reflectors, confederations, and
> peer-groups to make things a little easier to manage.  
> However, I swear I
> remember reading lately that there were negative issues with 
> these methods
> (althuogh I can't remember what the issues WERE), and that there was a
> better way to do things...  Is my memory shot?
> 
> Thanks,
> 
> Rick Kunkel
> 
> 
> 
> 




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