System for modifying path in transmission network system
AssigneeNEC Corporation
InventorsKatsuhiko Kurosawa, Nobuhiro Kusumoto
Life of this patent
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Abstract
There is disclosed a system for modifying a path taken in a transmission network system comprising first and second nodes. The first node routes a signal transmit to a first line to a second line. The second node checks the quality of the first and second lines. After checking that the second line is of good quality, the second node selects the second line. The first node stops entry of signals into the first line. Thus, modification of the path is completed.
Claims13
A system for modifying a path in a one-way transmission network system formed by nodes, said nodes comprising at least a first node and a second node between which a first transmission line and a second transmission line exist, said second node receiving a signal over said first transmission line outputted from said first node thus forming said path for said signal, said system comprising:
- said first node including a routing means for routing the signal outputted to said first transmission line to said second transmission line to modify said path for said signal, and a disconnecting means for disconnecting said first transmission line to stop input of signals to said first transmission line on modification of said path;
- and
- said second node including a quality-checking means for checking quality of said first and second lines utilizing said signal and a selecting means for selecting said second transmission line as said path after checking that said second transmission line is of good quality.
A system for modifying a path in a two-way transmission network system formed by nodes, said nodes comprising at least a first node and a second node between which a first transmission line and a second transmission line exist, said second node receiving a signal over said first transmission line outputted from said first node and said first node receiving a signal over said first transmission line outputted from said second node thus forming said path for said signals, said system comprising:
- said first node including:
- i) a routing means for routing the signal outputted to said first transmission line to said second transmission line to modify said path for said signal;
- ii) a quality-checking means for checking quality of said first transmission line and said second transmission line utilizing said signal;
- iii) a selecting means for selecting said second transmission line as said path after checking that said second transmission line is of good quality and iv) a disconnecting means for disconnecting said first transmission line to stop input of signals to said first transmission line on modification of said path;
- and
- said second node including:
- i) a routing means for routing the signal outputted to said first transmission line to said second transmission line to modify said path for said signal;
- ii) a quality-checking means for checking quality of said first transmission line and said second transmission line utilizing said signal;
- iii) a selecting means for selecting said second transmission line as said path after checking that said second transmission line is of good quality;
- and iv) a disconnecting means for disconnecting said first transmission line to stop input of signals to said first transmission line on modification of said path.
Dependencies are inferred from the claim text.