[f-nsp] MPLS feasibility

[Heath Jones]

Hi Frank,

Are you talking about an lan extension service / pseudowires / vpls / etc
ie. Ethernet that the carriers are tunneling over MPLS?
If that is the case, it should be delivered as a simple ethernet circuit to
you. Of course you can do load balancing over 2 ethernet links, you can play
with metrics and have redundancy too. You cannot have both though obviously
(if you use >100Mb/s). Something to consider if you are load balancing like
this: the circuits will have different latency and packets *will* get out of
order.

The best advice however is you should contract a consultant or a company to
fully understand what you want to achieve and give you case specific
guidance.

If everyone in your situation got free 'professional services' on these
forums, we would all be out of jobs! :)


Best of luck
Heath



On 4 September 2010 20:15, Frank Suter <frnkstr at gmail.com> wrote:

> Dear all,
>
> I am writing to this list, because I am using Brocade/Foundry routers and
> switches. This is maybe not the most accurate list, if so, please accept my
> apologies.
>
> Here is the context: I am currently having a datacenter presence where I do
> run my own AS with three ISPs, each with full BGP table and a /23 PI
> dedicated to the servers and Internet access. Because this is considered as
> the consolidated Internet access and datacenter, I would like to hub the
> office with this connection.
>
> Now my goal is to connect the office with the datacenter using a symmetric
> 100/100 Mbit link running MPLS service from my ISP. This will be delivered
> as a service. Now, because redundancy is important for me, I would link to
> have a second link 100/100 Mbit, but rather than asking the same provider to
> secure the path, I would like to ask this to a second provider because I do
> not trust one provider to do redundancy for me.
>
> I know that each provider are using physical different path to reach the
> Data Center.
>
> Questions:
>
> 1) Can I build a redundant MPLS access with two different providers and
> aggregate them together on each end? Thus having two paths of 100 Mbit
> symmetric each. Possible?
> 2) What equipment do I need on the office side to do this?
> 3) How long is the convergence time to expect in case of major failure on
> one of the links?
>
> Thank you for your time and advices.
>
> Frank
>
>
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