Traffic grooming methods for undersea trunk and branch...
Traffic grooming methods for undersea trunk and branch...
Transmission apparatus and method of multi-service...
Transmission apparatus and method of multi-service...
Transmission apparatus with a function to switch a line in...
Transmission device and label allocation method
Transmitter-based path protection switching in a ring network
Transmitting apparatus
Unit switching apparatus with failure detection
Virtual line switched ring (VLSR) connection state...
Virtual ring configuration method and virtual ring system
VT path misconnection avoidance method in the event of SONET fai