Managed IP routing services for L2 overlay IP virtual...

Details Managed IP routing services for L2 overlay IP virtual... Managed IP routing services for L2 overlay IP virtual...

2007-10-09

2007-10-09

Nguyen, Chau (Department: 2616)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S392000

Reexamination Certificate

active

10717151

ABSTRACT:
A method and apparatus for providing IP-VPN services for customers and service providers utilizing layer-2 point-to-point connectivity. The method and apparatus include exchanging unique loop-back addresses of customer edges (CE) between the CEs via a respective data virtual circuit therebetween, and sending IP addresses of customer networks associated with each CE to an associated IP service controller (IPSC). The associated IPSC broadcasts the IP addresses of the associated customer networks to other IPSCs, and each CE sends to an associated IPSC, a list of received loop-back addresses. Each IPSC then sends to an associated CE, customer network addresses received from other IPSCs, and each CE populates a local routing table with information mapping the customer networks with a data virtual circuit.

REFERENCES:
patent: 7072346 (2006-07-01), Hama

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