Re: CsC with Customer carrier being ISP

You have to see it like this.

A customer buys a L3VPN service from a carrier. The carrier has 2 PE's, one on site A and one on site B where it is connected to the CE's of the customer. The carrier has no link between site A and site B, therefore that carrier buys a MPLS service from another carrier. That's why it's called Carrier supporting Carrier :-)
The customer carrier is the one that has this direct end-customer. The other carrier only supplies an MPLS switched path through his network, usually in a L3VPN.

A customer usually doesn't see the carriers routing table of course.
Of course the customers can have access to each other if you want, they are just using a standard L3VPN service.

-- 
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Sr. Support Engineer  IPexpert, Inc.
URL: http://www.IPexpert.com
On 5 mei 2010, at 08:27, Service Provider wrote:
> Hi
> 
> Am I right in saying that when the customer carrier is an ISP, all it's
> clients are able to have visibility to the carrier's routing table and that
> if the customer carrier has multiple customers they too CAN have access to
> each other?
> 
> 
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