Label switched path OAM wrapper

Details Label switched path OAM wrapper Label switched path OAM wrapper

2001-12-31

2008-05-13

Vaughn, William (Department: 2144)

Electrical computers and digital processing systems: multicomput

Computer network managing

Computer network monitoring

C709S238000, C370S236200, C370S241100

Reexamination Certificate

active

07373401

ABSTRACT:
Methods and devices for logically segmenting an LSP so that OAM DTUs may be used to determine the performance and/or the status of LSP segments. To segment a previously determined LSP, a dedicated subpath (a logical LSP) within that predetermined LSP is defined between two LSRs that are capable of processing OAM DTUs. The source node (source LSR) establishes a logical LSP between itself and the destination node (destination LSR) using an LDP. In doing this, the logical LSP traverses a specific path and transits through specific nodes in that path. The source node then transmits an OAM DTU or any other specialized DTU to the destination node using a label specifically associated with the logical LSP that was established. The characteristic of the specific path traversed by the logical LSP can thus be determined by when, how, and if the specialized DTU is received by the destination node.

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