End-to-end bidirectional keep-alive using virtual circuits

End-to-end notification of local protection using OAM protocol

Engineering order wire

Enhanced dual counter rotating ring network control system

Enhanced internal router redundancy

Enterprise network analyzer agent system and method

Equipment monitoring system line swap fast recovery method

Error correction system for packet switching networks

Error handling within power amplifier modules in wireless...

Error recovery in a network having cascaded hubs

Error-recovery mechanism using a temporary forwarder in a...

Errorless switching techniques in ring network

Establishment of a flexible rate interface link to restore chann

Establishment of designated S-PVC connection in PNNI...

Ether ring architecture for local area networks

Ethernet network implementing redundancy using a single...

Ethernet protection system providing fault tolerence for...

Ethernet switch with configurable alarms

Ethernet switch with configurable alarms

Evolution of a telecommunications network from ring to mesh...