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Design advice

Hello guys,

I do need a design advice. Please have a look at the scheme in the attach.

What do i have:

- 3 distant data centers

- /21 network in AS123, devided into /24 blocks

- two BGP routers in each data center (one main, one backup).

- from each data center the /24 block is announced

As these datacenters are not in the same VLAN, i used the /30 tunnels over the phys links between DC's to connect the routers and enabled iBGP there. But now I see, that this scheme is not really scalable, 'cause i'm going to add one mo datacenter and I'll have to add a lot iBGP links again.

I was thinking about route-reflectors, but as my routers aren't in the same LAN, it won't really work.

Could you, please, advise me smth? How can smbdy deal with that?

Thank you in advance.

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