Protection switching system having impedance matching circuits

Protection switching trigger generation

Protection switching using standby system for transmission...

Protection switching within an OP-n layer

Protection system and method for resilient packet ring (RPR)...

Protection system, layer 2 function block, node and ring...

Protection system, virtual concatenation processing block,...

Protection that automatic and speedily restore of Ethernet...

Protection-switching apparatus and method in asynchronous...

Protocol definition for software bridge failover

Protocol definition for software bridge failover

Provider edge-controlled redundancy using pseudo link...

Providing embedded protection in a network cross-connect...

Providing reconditioned signals at a plurality of ports

Provisioning Ethernet dual working mode

Provisioning networks for reliable quality of service

Pseudowire protection using a standby pseudowire

Pseudowire tunnel redundancy

PVC management system and method

Quantification of the quality of spare links in a...