Method and apparatus for ingress port filtering for packet...

Method and apparatus for learning VRRP backup routers

Method and apparatus for line card redundancy in a...

Method and apparatus for lossless switchover in a redundant...

Method and apparatus for maintaining connection state...

Method and apparatus for maintaining connection state...

Method and apparatus for managing a loop network

Method and apparatus for managing a loop network

Method and apparatus for managing a loop network

Method and apparatus for measuring quality of service levels

Method and apparatus for N+1 RF switch with passive working...

Method and apparatus for performing a connection admission...

Method and apparatus for protection path setup

Method and apparatus for providing backup telecommunication...

Method and apparatus for providing continuous voice and call...

Method and apparatus for providing redundant protocol...

Method and apparatus for providing redundant protocol...

Method and apparatus for providing virtual facility...

Method and apparatus for reliable communications in a packet...

Method and apparatus for rerouting telecommunications signals