Abstract:
This presentation discusses techniques to satisfy customer requirements for a VPN that carries voice as well as data, provides reliability, quality of service, and security at moderate cost. Compression techniques allow moderate cost on low-speed access links for small sites. Each RFC 2547 VPN can be provisioned by configuring a separate VPN Routing and Forwarding (VRF) table in the provider edge (PE) router without changing the core of the network. Adding a customer site requires provisioning a single point, versus n points for an FR or ATM Layer 2 VPN. PE routers use BGP to distribute VPN routes to each other. A site may belong to more than one VPN. In particular, a VoIP control VPN serving several customers can allow a shared call control and routing entity to send and receive signaling messages for call setup and advanced features. Standard IP QoS techniques can provide high priority, low jitter service for VoIP calls through the MPLS network. Call setup and call admission control can be synchronized to ensure that no call is connected if the quality of that call or other calls already in progress would be unacceptable.
Bio:Bur Goode (Senior Member, IEEE) received the B.S. degree in physics, the M.S. and Ph.D. degrees in electrical engineering from Stanford University, Stanford, CA. He received the master's degree from the Sloan School of Management, Massachusetts Institute of Technology, Cambridge.
He is currently with AT&T Labs, developing architecture and technology for managed services. He was formerly with IBM and affiliated companies, including Satellite Business Systems, where he was the architect of the SBS TDMA Demand Assigned System.