Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer handshaking
Reexamination Certificate
2007-01-09
2007-01-09
Barrón, Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer handshaking
C709S236000
Reexamination Certificate
active
09597974
ABSTRACT:
An OP-N connection is mapped through a communications network between first and second end-nodes via at least one intermediate node. The integrity and validity of the OP-N connection can be determined independently of SONET/SDH lines, sections or paths mapped through the network, and potentially utilizing bandwidth of the OP-N connection. Validation of the OP-N connection can be accomplished by inserting performance monitor (PM) information into a data signal at the first end-node. In some embodiments, the PM information is inserted into an unused portion of the transport overhead (TOH) of a SONET/SDH data signal. At each intermediate node between the first and second end-nodes, the PM information is extracted from the data signal, buffered while the data signal is pointer processed, and the reinserted before forwarding the data signal. Finally, a the second end-point, the PM information is extracted and examined. Multiple levels of OP-N connections are supported, with each level being provided with a respective set of PM information.
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Betts Malcolm
Gagnon Ronald J.
Roberts Kim B.
Barrón Jr. Gilberto
Daniels Kent
Ho Thomas
Nortel Networks Limited
Ogilvy Renault LLP
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