Two things:
1) I can't come out and tell you how AT&T does things; being a vendor,
there's probably all sorts of stuff I'm not allowed to tell you. :)
2) I think you're probably asking too much from cisco-nsp, as it is
not really the place to go to get your network designed.
I suggest you start with the Networkers presentations at
http://www.cisco.com/networkers/nw00/pres/, there's some info in there
about how to offer VPN and Internet service on the same interface.
At this point, I think you should probably engage your local account
team, and get them to provide you some consulting resources. The
questions you're asking are fairly detailed ones, and are proably best
not answered in a short email in a public forum.
eric
On Tue, Nov 14, 2000 at 09:51:42PM +0530, Vinod Anthony Joseph Cherunni wrote:
> Thanks a lot for the advice, Kindly bear with me for this mail.
>
> Yes seems that I am a little confused on the TE & VPN parts. My
> understanding is that I could offer bandwidth guarantees between two sites
> that require connectivity, Something similar to layer 2 techniques. Could
> I be enlightened on how I could ensure comitted bandwidth between two
> sites that are part of a corporate Intranet on my MPLS core. Assuming a
> customer requires VPN connectivity between US & UK with a bandwidth
> requirement of 2 Mbps, Is it possible to offer comitted bandwidth of 2
> Mbps for this customer. When you mean TE is usually used for providing
> aggregate reservations, Do you mean that TE can only offer comitted
> bandwidth for all VPN traffic that traverses that particular engineered
> path? This solution is for a customer who wants to get rid of all his
> Frame Relay circuits & get on with MPLS, which would reduce his
> operational overheads. Kindly enlighten me.
>
> I am sorry for confusing you on the Frame Relay access part, What I meant
> was, AT&T has an interesting offering built using Cisco BPX switches. They
> claim that customers requiring connectivity to multiple circuits can
> purchase only a single PVC to the nearest AT&T POP, & get connected to any
> number of sites required. They claim that this is possible only because
> their core is built on MPLS. So I was confused on how they provide last
> mile guarantess. For example if a customer uses a single E1 last mile
> stream & connects to two sites over AT&T's MPLS cloud, Wherein each of his
> connection requires 1 Mbps of bandwidth, How would the provider restrict
> each connection from over utilizing the last mile bandwidth.
>
> Lastly are there any tools from the Cisco family that could offer SLA
> reports for MPLS VPN's. Say something like proving to a customer that he
> has been getting the promised Class of service in terms of bandwidth etc.
>
> Kindly advice.
>
> With warm regards,
> Vinod.
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