发明名称 |
Method and apparatus for fast distributed restoration of a communication network |
摘要 |
<p>A method for distributed managing of restoration paths within a communication network having nodes connected by links; comprising the steps of: (a) establishing a spare link catalog identifying unassigned links connecting each selected node with an adjacent node; (b) sending a probe message from each node to each adjacent node over an unassigned link; (c) evaluating the probe message at each adjacent node according to predetermined criteria; (d) forwarding the probe message to subsequent adjacent nodes, or discarding the probe message, as determined by the evaluating; (e) appending message content to the probe message indicating the path sequence traversed by the probe message proceeding through the network; (f) evaluating the forwarded probe message at each said subsequent node according to the predetermined criteria; (g) repeating steps (d) through (f) for each forwarded probe message until it is discarded or is received by the probe message originating node; (h) the probe message originating node noting each message receipt of its own probe message, each such message receipt including a recital of a restoration path in the path sequence; and (i) recording each message receipt in a restoration path register in a data store at a plurality of selected storage nodes. <IMAGE></p> |
申请公布号 |
EP1093257(A1) |
申请公布日期 |
2001.04.18 |
申请号 |
EP20000122060 |
申请日期 |
2000.10.11 |
申请人 |
ALCATEL USA SOURCING, L.P. |
发明人 |
CHAO, TZU-LIEN TIM;DARABPOUR, MANOUCHEHR |
分类号 |
H04L12/56;(IPC1-7):H04L12/56 |
主分类号 |
H04L12/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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