Data transmission apparatus and a path control method thereof
AssigneeFujitsu Limited
InventorFumihiko Saito
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Abstract
A data transmission apparatus using a virtual concatenated path in an SDH transmission system is capable of engaging one or more extra paths by an automated sequence execution to meet a traffic requirement that is higher than usual but up to a maximum speed of a user who is usually assigned virtual concatenated paths in a number smaller than capable of transmitting the maximum traffic.
Claims24
A data transmission apparatus that transmits a data-speed-variable signal to a synchronous digital network by dividing the signal into a plurality of virtual concatenated paths, comprising a transmitting unit that engages one or more extra paths in addition to one or more virtual concatenated paths normally assigned when a traffic amount becomes high, and disengaging the one or more extra paths when the traffic amount resumes later, wherein
- the one or more extra paths are distinguished from other paths by insertion of one of an AIS signal and an UNEOP sianal, and
- an H4 byte is inserted to inform a receiving side of the creation of the one or more extra paths.
A path control method of data transmission that transmits a data-speed-variable signal to a synchronous digital network by dividing the signal into a plurality of virtual concatenated paths, wherein a transmitting unit engages one or more extra paths in addition to one or more virtual concatenated paths normally assigned when a traffic amount becomes high, and disengaging the one or more extra paths when the traffic amount resumes later, wherein
- the one or more extra paths are distinguished from other paths by insertion of one of an ASI signal and an UNEOP signal, and
- an H4 byte is inserted to inform a receiving side of the creation of the one or more extra paths.
Dependencies are inferred from the claim text.