Optical transmission apparatus having path trace function
First Claim
1. An optical transmission apparatus having a path trace function of carrying out a conductive state check of a path in a synchronous optical transmission network, comprising:
- a first judgment unit judging a path trace format of an existing standard corresponding to a SONET, in response to a detection of a first specific code contained in a path trace data;
a second judgment unit judging a path trace format of a new standard corresponding to an SDH, in response to a detection of a second specific code contained in the path trace data;
a third judgment unit specifying one of the path trace formats of a plurality of the new standards, in accordance with a content of a third specific code which is contained together with the second specific code in the path trace data; and
a unit reporting a judgment result of the path trace format, and a SONET/SDH mode based on a value of an SS bit being defined at a fifth bit and a sixth bit within an H1 byte of a SONET/SDH frame, to a maintainer terminal.
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Abstract
An optical transmission apparatus has a path trace function of carrying out a conductive state check of a path in a synchronous optical transmission network. The optical transmission apparatus includes a first judgment unit judging a path trace format of an existing standard in accordance with detection of a first specific code contained in path trace data, and a second judgment unit judging a path trace format of a new standard in accordance with detection of a second specific code contained in path trace data. The apparatus further includes a third judgment unit specifying one of the path trace formats of the new standard in accordance with a content of a third specific code contained together with the second specific code in the path trace data.
18 Citations
11 Claims
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1. An optical transmission apparatus having a path trace function of carrying out a conductive state check of a path in a synchronous optical transmission network, comprising:
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a first judgment unit judging a path trace format of an existing standard corresponding to a SONET, in response to a detection of a first specific code contained in a path trace data; a second judgment unit judging a path trace format of a new standard corresponding to an SDH, in response to a detection of a second specific code contained in the path trace data; a third judgment unit specifying one of the path trace formats of a plurality of the new standards, in accordance with a content of a third specific code which is contained together with the second specific code in the path trace data; and a unit reporting a judgment result of the path trace format, and a SONET/SDH mode based on a value of an SS bit being defined at a fifth bit and a sixth bit within an H1 byte of a SONET/SDH frame, to a maintainer terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical transmission apparatus having a path trace function of carrying out a conductive state check of a path in a synchronous optical transmission network, comprising:
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a first judgment unit judging a path trace format of an existing standard corresponding to a SONET, in response to a detection of a first specific code contained in a path trace data; a second judgment unit judging a path trace format of a new standard corresponding to an SDH, in response to a detection of a second specific code contained in the path trace data; a third judgment unit specifying one of the path trace formats of a plurality of the new standards, in accordance with a content of a third specific code which is contained together with the second specific code in the path trace data; a unit, in accordance with a result of automatic determination of the path trace format from an opposite station at a time of a two-way transmission route configuration or intermediate path trace execution as the path, automatically selecting the path trace format that can be received and transmitting the path trace data to the opposite station at the time of the two-way transmission route configuration or to a path trace receotion station existing at an intermediate position at the time of the intermediate path trace execution; and a unit, when a character number of a path trace message of a transmission target set from a maintainer terminal exceeds a character number processed in the path trace format, notifying the maintainer terminal of a character number excess state and a transmittable maximum character number.
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Specification