发明名称 |
Operator directed routing of connections in a digital communications network |
摘要 |
A virtual circuit whose path across a network is specified by a human operator (hereinafter operator directed route or ODR VC) is established by manually provisioning a preferred path for the connection, including a source node, destination node, and intermediate nodes or subnetworks therebetween. The source node creates a call setup message which is signalled along the preferred path, whereby the intermediate nodes along the preferred path establish the bearer channel cross-connects. The operator also specifies a re-routing scheme for the ODR VC in the event the preferred path is blocked or a link subsequently fails. The re-routing scheme includes one of (a) the preferred path only; (b) at least one manually provisioned alternate path; and (c) any available path. The ODR VC provides the benefit of a permanent virtual circuit (PVC) in terms of the ability to consciously route a connection with the benefit of a soft permanent virtual circuit (SPVC) or switched virtual circuit (SVC) in terms of the capability to efficiently re-route connections by the network as opposed to a central management authority. <IMAGE> |
申请公布号 |
EP0961518(A2) |
申请公布日期 |
1999.12.01 |
申请号 |
EP19990109317 |
申请日期 |
1999.05.28 |
申请人 |
ALCATEL CANADA INC. |
发明人 |
MCALLISTER, SHAWN;TOOKER, MARK;VEENEMAN, RON |
分类号 |
H04L12/703;H04L12/721;H04Q11/04 |
主分类号 |
H04L12/703 |
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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