Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-03-22
2009-08-18
Cho, Hong (Department: 2419)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S467000
Reexamination Certificate
active
07577147
ABSTRACT:
The invention discloses a transparent transmission method for administrative information of SDH devices manufactured by multi-vendors. First, idle overhead bytes of a frame structure of synchronous transfer mode are defined to transfer administrative information of other vendors. At each node of a transmission network, the administrative information is extracted and transformed to a uniform format. After time slot cross, transmission direction of each vendor's administrative information is defined. After format transformation has been implemented again, the administrative information of each vendor is inserted in a frame structure of a designated line. After that, the frame transfers each vendor's administrative information to other nodes, the rest can be deduced by analog, until administrative information of other vendors is transferred to a designated position. With this method, administrative information of SDH devices of multi-vendors can be transparently transmitted over SDH devices of a certain vendor. Moreover, this method is simple and reliable.
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Cho Hong
Huawei Technologies Co. Ltd.
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