Comments on ipSpace.net: BGP-Free Service Provider Core in Pictures

Without RR you would need #PE x (#PE - 1) / z iBGP...

2012-01-20T18:12:18.977+01:00

Without RR you would need #PE x (#PE - 1) / z iBGP sessions
With two RR (for redundancy) you would need 2 x #PE +1 iBGP sessions

#PE being the number of PE in your network... So if you have 6 or more PE, RR decrease the number of iBGP sessions required...

So this will be required ONLY if iBGP is running i...

2012-01-12T08:17:46.339+01:00

So this will be required ONLY if iBGP is running inside core?

Scaling IBGP. Without a RR, you need a full mesh o...

2012-01-12T07:18:58.669+01:00

Scaling IBGP. Without a RR, you need a full mesh of IBGP sessions (between every pair of BGP-speaking routers).

Articles like this are why I subscribed to this bl...

2012-01-11T22:56:21.375+01:00

Articles like this are why I subscribed to this blog in the first place. This was fantastic, cheers Ivan.

Hello Ivan, It is common inside any ISP core netw...

2012-01-11T17:01:33.360+01:00

Hello Ivan,

It is common inside any ISP core network to use at least one RR?

Can you share with us, why is that?