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Cisco MPLS Network configuration - How is it done?

Hello,

Please can someone explain how one could configure their own MPLS network? At the moment we have about 20 sites connected via BT IP Clear and I'm wondering if we were to move this say to 1mbit SDSL per site could we then create our own MPLS network?

How are they created? Would you have seperate VPN tunnels to each site from each site and just do some fancy routing. Eg.

Paris has VPN to Dublin
Paris has VPN to Frankfurt
Paris has VPN to London

and vice verus

all going over the single SDSL connection. Is this possible. Would appreciate some explainations along with sample configs if possible. Please don't google me a link as I can do that.

I'm familar with all other Cisco configs/topologys etc just new to configuring MPLS myself.

Cheers guys
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georgecooldude
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georgecooldude
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3 Solutions
 
lrmooreCommented:
>could we then create our own MPLS network?
Nope.
The MPLS is the "cloud" that connects all sites together. Unless you own the circuits and can provide total end-end connectivity, it won't do you any good.
DMVPN would be much more feasible for you.
http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a0080110ba1.html

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nodiscoCommented:
As per Lrmoore - MPLS service is provided to you over the BT backbone.  You have a few options if you want to control all the ciruits and routing but do you mind if I ask why you wish to change from BTs service?  I am assuming the cost of the service - you are pretty much paying the big money as its a stable, reliable service (also perfect for a voip rollout), BT offer per-circuit realtime monitoring and all the extras you will not get from a DSL service.

PS - I don't work for BT!  I have MPLS with them - look at other providers if they are costing over the odds - depending on where your offices are, you may be better off with AT&T or a different provider.



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georgecooldudeAuthor Commented:
>>You have a few options if you want to control all the ciruits and routing but do you mind if I ask why you wish to change from BTs service?  I am assuming the cost of the service - you are pretty much paying the big money as its a stable, reliable service (also perfect for a voip rollout), BT offer per-circuit realtime monitoring and all the extras you will not get from a DSL service.

The costs are around £4400 for 128k, £5500 for 256k, £8500 for 512k, £11,000 for 1mbit and £12,000 for 2mbit. (we get 14% off these listed prices as were in a 5 year UDS contract until May 2008)

We have a couple sites on 2mbit and the rest are on 256k. Costs are around 100k a year for our 18 or so sites across UK and Ireland.

Each site has around 10-20 users. The network just about runs ok but of course the ability to burst up high to 512k or even 1mbit is sometime that would take off the 9am and 1pm network bursts. We are looking at how we can deploy VOIP to make cost savings without increasing the cost of the links dramatically.

BTW. What sort of MPLS do you have with BT and what sort of prices are you looking at for various access speeds?
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nodiscoCommented:
What about local internet for your sites - do you have DSL at each site that you route 0.0.0.0 traffic to or are you using Multiple Default Routing for all of your web traffic to go through one of your MPLS sites' internet?
This is something that can cause big issues - depending on how secure your network is.  For example - a site with no local internet downloading (or worse still P2Ping) across your WAN through a different site causes dreadful issues.

We went MPLS for the same reasons - VOIP cost savings and a private managed circuit.  I don't know our exact pricing as its not my area - I support the network.

The one thing with BT that I would mention if you're not already aware is upgrades. If you need 256 or 512k at a site - spec out a price for an E1 with a port speed of 256/512k.  Due to the 3 year contract and installation fees, circuits that require a forklift upgrade are a killer financially.  An upgrade for a 256/2048 line to 512/2048 is far more reasonable.
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georgecooldudeAuthor Commented:
Cheers guys.
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