VoIP call convergence is directly tied to IP convergence. I have read all the responses related to BGP BFD, BGP Neighbor Fall Over, and BGP Session Timeout. My questions is this: Has anyone tested or deployed a BGP solution (over MPLS) that allows voice calls to reconverge on an alternate path without failing. I am using 5s as the threshold for convergence (as a user will hang up by then in my opinion). I am working with a large call center organization (10 MILLION calls/month) and they are deploying IPCC and want to know if an IP WAN can support convergence around link/node failures. Again, I have read the recommendations, but have yet to test or deploy any of them (BFD etc). Can BGP converge in <5s safely???? How low can I go? Each Call center is dual homed to the MPLS cloud using BGP and large pipes DS3 & up.
I have this problem too.