Enterprise network as an ISP with a single huge customer

[mark.tinka at seacom.mu (Mark Tinka)]

On 12/Jun/15 19:08, Stepan Kucherenko wrote:
>  
>
> How many of you architect your network as an ISP, with that enterprise
> as the biggest customer ? Office networks in l3vpn, VPLS/EVPN on top
> of your own network for DCI, etc ? Or is it usually just a single IGP
> domain with no unnecessary bells and whistles ?

We run a commercial ISP network that provides IP and other non-IP
services to our customers.

On top of that, our corporate/enterprise network is a customer.
Implementation is l3vpn with firewalls at each office sitting between
the l3vpn and public Internet. Enterprise and Internet traffic is routed
accordingly.

DCN network is a combination of l2vpn and l3vpn, depending on what part
of the network the DCN needs to touch.

Mark.