Inventors:
Leland Frank Derbenwick - Haverhill MA
Ravichandran R. Iyer - Freehold NJ
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
G01R 3108
Abstract:
A facility is provided for use in a communications network node to monitor the way in which particular signals are transported over the network and block those signals which are not being transported correctly. The facility is particularly useful for ensuring that a concatenated signal in a SONET transport system is transported correctly over contiguous channels.