Virtual path ring protection method and apparatus

Virtual path shaping

Virtual path-based static routing

Virtual port scheduler

Virtual private communications network

Virtual private LAN service using a multicast protocol

Virtual private LAN service using a multicast protocol

Virtual private network

Virtual private network and tunnel gateway with multiple...

Virtual private network based upon multi-protocol label...

Virtual private network based upon multi-protocol label...

Virtual private network employing tag-implemented...

Virtual private network management system

Virtual private network over asynchronous transfer mode

Virtual private network over asynchronous transfer mode

Virtual private network system over public mobile data network a

Virtual private networks and methods for their operation

Virtual segmentation system and method of operation thereof

Virtual segmentation system and method of operation thereof

Virtual switch in a wide area network