Good day everyone,
I am looking for a little design advice for interconnecting pop sites with VPLS. I have attached an image to the email (compressed), as well as uploaded http://img64.imageshack.us/img64/6959/2547ovpls.png incase it gets stripped out by the ML or a spam filter. I have never ran MPLS over broadcast multipoint networks before to any scale. I am curious as to what the impact would be to running OSPF and LDP across anywhere from 5 to 20 pop sites through another providers VPLS cloud as depicted. I understand there may be some scalability issues with the OSPF DR in each cloud, as well as OSPF failure detection implications (need to reduce OSPF timers). I suspect that there are quite a few pitfalls that we are missing in thinking through a design like this and would appreciate any input or experiences people are willing to share on or off list. We have already discovered that one VPLS provider may limit the amount of multicast/broadcast traffic delivered to sites to ~2mbps. Will that greatly impact us during IGP or LDP convergence? Thanks for your time and thoughts, John
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