[j-nsp] Core network design for an ISP

[Mark Tinka]

On 25/Mar/16 17:20, Saku Ytti wrote:

> It should be safe for at least 1.5M IPv4 FIB + reasonable IPv6 FIB.
> It's pretty far future, unless you have large L3 MPLS VPN tables in
> addition.
>
> There are some other benefits running separate MPC for edge and core,
> but it might not make financial sense. Obviously you want core
> interfaces in separate MPCs, so having 3 MPC on smallest pop, and
> potentially just 1 interface in each core MPC, may be just too high
> premium for it.
>
> I would not specifically plan on separate MPC for edge+core, unless
> I'd knew that I'm going to have large VPN tables and 1.5M won't be
> enough.

We do at least 2x MPC's on each edge router - place core-facing and
customer-facing links on both MPC's. If one MPC fails, you maintain
connectivity to both north and south network infrastructure, with just a
reduce amount of capacity.

Mark.