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MPLS for small network

In the past we have always had point to point links between our 3 remote offices and our corporate office. We're now switching to a MPLS network for all four sites.

We currently use Cisco 1721 routers for our WAN. What protocol should we use for routing across this new MPLS network? I'm also looking for a document what else I may need to configure for this MPLS design on the router itself.

We will have 1721 routers at all sites.

1 REPLY

Re: MPLS for small network

Hi,

for you as a customer the most appropriate picture is: The MPLS VPN behaves like one single IP router interconnecting your sites.

In your case just consider your 4 1721 being connected to one ISP router. There is no MPLS specific config needed on your 1721, MPLS is only within your ISP network.

This means: you send IP routing updates from one site to the "MPLS IP router simulator" and the updates will be sent further on to the other 3 1721. You forward an IP packet to the "MPLS IP router simulator" and it forwards it as IP packet to one of your other 3 1721.

If you are not dual homed or using backups then RIP would address all your needs. Also static routing might be suitable and the most simple aproach in your scenario.

Hope this helps! Please rate all posts.

Regards, Martin

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