Transmit virtual concatenation processor

Details Transmit virtual concatenation processor Transmit virtual concatenation processor

2007-02-13

2007-02-13

Vu, Huy D. (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S369000, C370S465000

Reexamination Certificate

active

09943886

ABSTRACT:
A transmit virtual concatenation processor for multiplexing channelized data onto a SONET/SDH frame is disclosed. The processor is scalable and is able to handle mapping a number of data channels to a number of different frame sizes including STS-12, STS-48, STS-192 and STS-768. The processor supports virtual concatenation with arbitrary channel mapping at both STS-1 and STS-3c granularities. The processor also supports contiguous concatenation with STS-12c, STS-24c, STS-48c, STS-192c, etc. capacities (i.e., STS-Nc where N is a multiple of 3). In addition, the processor supports mixed concatenation where some channels are using contiguous concatenation and some other channels are using STS-3c-Xv virtual concatenation. Alternatively, the processor is able to support any virtual concatenation, any contiguous concatenation and any mixed concatenation. The processor terminates the H1, H2and H3bytes in the line overhead of a SONET/SDH frame and inserts the multi-frame indicator and sequence number in the H4byte of the path overhead.

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