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41. 发明授权

US07298704B2 Dynamic path routing with service level guarantees in optical networks 失效
标题翻译：光网络中具有业务级别保证的动态路由路由
公开(公告)号：US07298704B2
公开(公告)日：2007-11-20
申请号：US09899509
申请日：2001-07-05
申请人： Muralidharan S. Kodialam , Tirunell V. Lakshman
发明人： Muralidharan S. Kodialam , Tirunell V. Lakshman
IPC分类号： G01R31/08
CPC分类号： H04L45/62 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04Q11/0062 , H04Q11/0066 , H04Q2011/0073 , H04Q2011/0086
摘要： A scheme for guaranteeing network tunnel path (NTP). e.g., Internet Protocol (IP), service levels in optical (e.g., wavelength-division multiplex (WDM)) networks. The invention, in one embodiment, accounts for both network topology (e.g. switches, cross-connects, and links between nodes) and resource usage (e.g., available/provisioned link bandwidth and available/used wavelength paths), which information may be available from the IP and optical WDM protocol layers, in particular (i) router capacities and (ii) presence or absence of wavelength conversion capability of optical cross-connect at each node. A determination is made whether to route an arriving request for an NTP over existing topology by computing “good” routes in accordance with a defined metric, or to open a new, available optical wavelength path by provisioning nodes of the topology for, and computing “good” routes for new wavelength paths. As many requests as possible are identified without a priori information of future requests.
摘要翻译：一种保证网络隧道路径（NTP）的方案。例如因特网协议（IP），光学（例如，波分多路复用（WDM））网络中的服务级别。在一个实施例中，本发明涉及网络拓扑（例如，交换机，交叉连接和节点之间的链路）和资源使用（例如，可用/提供的链路带宽和可用/使用的波长路径），哪些信息可以从 IP和光WDM协议层，特别是（i）路由器容量和（ii）在每个节点处存在或不存在光交叉连接的波长转换能力。通过根据定义的度量计算“良好”路由来确定是否将对NTP的到达请求路由到现有拓扑，或者通过为拓扑的节点提供并打开新的可用光波长路径，并且计算“ 好的“路线。尽可能多的请求被识别，没有未来请求的先验信息。

42. 发明授权

US07124187B1 Routing of bandwidth guaranteed paths with restoration in an information network 有权
标题翻译：在信息网络中恢复带宽保证路径的路由
公开(公告)号：US07124187B1
公开(公告)日：2006-10-17
申请号：US09535206
申请日：2000-03-27
申请人： Muralidharan S. Kodialam , Tirunell V. Lakshman
发明人： Muralidharan S. Kodialam , Tirunell V. Lakshman
IPC分类号： G06F15/173 , G01R31/08
CPC分类号： H04L47/724 , H04L45/02 , H04L45/22 , H04L45/28 , H04L45/30 , H04L45/302 , H04L45/50 , H04L47/10 , H04L47/15 , H04L47/70 , H04L47/728 , H04L47/746
摘要： Restorable paths in an information network are established in response to arriving traffic requests. Requests are received at a first node of the network for transmission of traffic to a second node of the network, and each request specifies a desired transmission bandwidth for an active and a backup path to be established between the nodes. Potential active links for an active path are identified in response to a given request, and potential backup links to form a backup path for restoring the active path, are also identified in response to the given request. An active and a backup path are then formulated for each given request from among the potential active links and the potential backup links that were identified in response to the given request.
摘要翻译：响应于到达的流量请求，建立信息网络中的可恢复路径。在网络的第一节点处接收请求以将流量传输到网络的第二节点，并且每个请求指定要在节点之间建立的活动和备用路径的期望的传输带宽。响应于给定的请求，识别出活动路径的潜在活动链路，并且响应于给定的请求也识别出潜在备份链路以形成用于恢复活动路径的备份路径。然后，根据给定的请求，为潜在的活动链接和潜在的备份链接为每个给定的请求制定活动和备份路径。

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