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1. 发明授权

US09698910B2 Network server layer providing disjoint channels in response to client-layer disjoint path requests 有权
公开(公告)号：US09698910B2
公开(公告)日：2017-07-04
申请号：US14726585
申请日：2015-05-31
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
IPC分类号： H04J14/00 , H04B10/27 , H04L29/06 , H04L12/54 , H04L12/723 , H04J14/02 , H04L12/735 , H04B10/25 , H04Q11/00
CPC分类号： H04B10/27 , H04B10/25 , H04J14/0267 , H04L45/128 , H04L45/50 , H04L67/42 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0077
摘要： In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.

2. 发明申请

US20140270771A1 Network Server Layer Providing Disjoint Channels in Response to Client-Layer Disjoint Path Requests 有权
标题翻译：网络服务器层提供响应于客户端层不连续路径请求的不相交通道
公开(公告)号：US20140270771A1
公开(公告)日：2014-09-18
申请号：US13801667
申请日：2013-03-13
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
IPC分类号： H04B10/25
CPC分类号： H04B10/27 , H04B10/25 , H04J14/0267 , H04L45/128 , H04L45/50 , H04L67/42 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0077
摘要： In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.
摘要翻译：在一个实施例中，网络服务器层响应于客户端层不相交路径请求而提供不相交的信道。例如，网络层可以是光网络，并且客户端层可以是分组交换层（例如，标签交换，因特网协议）。在一个实施例中，服务器层节点接收客户端层不相交路径请求，以通过服务器层网络提供服务器层信道。客户端层不相交路径请求包括对应于穿过不包括服务器层节点的服务器层网络的当前信道的现有客户端层路径的标识符。服务器层网络基于当前信道的路由信息，通过服务器层网络确定与当前信道不相关的特定信道，然后在服务器层网络内执行信令以建立特定信道。

3. 发明申请

US20150263811A1 Network Server Layer Providing Disjoint Channels in Response to Client-Layer Disjoint Path Requests 审中-公开
标题翻译：网络服务器层提供响应于客户端层不连续路径请求的不相交通道
公开(公告)号：US20150263811A1
公开(公告)日：2015-09-17
申请号：US14726585
申请日：2015-05-31
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
IPC分类号： H04B10/27 , H04B10/25 , H04L12/723
CPC分类号： H04B10/27 , H04B10/25 , H04J14/0267 , H04L45/128 , H04L45/50 , H04L67/42 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0077
摘要： In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.
摘要翻译：在一个实施例中，网络服务器层响应于客户端层不相交路径请求而提供不相交的信道。例如，网络层可以是光网络，并且客户端层可以是分组交换层（例如，标签交换，因特网协议）。在一个实施例中，服务器层节点接收客户端层不相交路径请求，以通过服务器层网络提供服务器层信道。客户端层不相交路径请求包括对应于穿过不包括服务器层节点的服务器层网络的当前信道的现有客户端层路径的标识符。服务器层网络基于当前信道的路由信息，通过服务器层网络确定与当前信道不相关的特定信道，然后在服务器层网络内执行信令以建立特定信道。

4. 发明授权

US09049266B2 Network server layer providing disjoint channels in response to client-layer disjoint path requests 有权
标题翻译：网络服务器层提供响应于客户端层不相交路径请求的不相交通道
公开(公告)号：US09049266B2
公开(公告)日：2015-06-02
申请号：US13801667
申请日：2013-03-13
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
IPC分类号： H04J14/00 , H04L29/06 , H04L12/54 , H04L12/723 , H04Q11/00
CPC分类号： H04B10/27 , H04B10/25 , H04J14/0267 , H04L45/128 , H04L45/50 , H04L67/42 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0077
摘要： In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.
摘要翻译：在一个实施例中，网络服务器层响应于客户端层不相交路径请求而提供不相交的信道。例如，网络层可以是光网络，并且客户端层可以是分组交换层（例如，标签交换，因特网协议）。在一个实施例中，服务器层节点接收客户端层不相交路径请求，以通过服务器层网络提供服务器层信道。客户端层不相交路径请求包括对应于穿过不包括服务器层节点的服务器层网络的当前信道的现有客户端层路径的标识符。服务器层网络基于当前信道的路由信息，通过服务器层网络确定与当前信道不相关的特定信道，然后在服务器层网络内执行信令以建立特定信道。

5. 发明申请

US20130232193A1 Control-Plane Interface Between Layers in a Multilayer Network 审中-公开
标题翻译：多层网络层之间的控制平面接口
公开(公告)号：US20130232193A1
公开(公告)日：2013-09-05
申请号：US13783368
申请日：2013-03-03
申请人： Zafar Ali , Clarence Filsfils , Ornan Alexander Gerstel , Jean-Philippe Vasseur , Walid Wakim , Matthew Hartley , George Leonard Swallow
发明人： Zafar Ali , Clarence Filsfils , Ornan Alexander Gerstel , Jean-Philippe Vasseur , Walid Wakim , Matthew Hartley , George Leonard Swallow
IPC分类号： H04L29/06
CPC分类号： H04L29/06047 , H04L67/42
摘要： In one embodiment, information is exchanged between independent control planes of different layers in a multilayer network, such as, but not limited to, between a packet switching client-layer network and an optical server-layer network. This exchanged information includes signaling regarding a server-layer communications service, having server-layer characteristics, within the server-layer network for use in communicatively coupling at least two devices of the client-layer network. In one embodiment, the client-layer network specifies at least one of these server-layer characteristics that the server-layer communications service provided by the server-layer network must have. In one embodiment, the server-layer network signal to the client-layer network at least one of these server-layer characteristics of the existing server-layer communications service. In one embodiment, this signaling between the client-layer network and the server-layer network includes sending extended Resource Reservation Protocol (RSVP) messages.
摘要翻译：在一个实施例中，信息在多层网络中的不同层的独立控制平面之间交换，诸如但不限于分组交换客户端层网络和光服务器层网络之间。这种交换的信息包括关于在服务器层网络内具有服务器层特性的服务器层通信服务的信令，用于通信地耦合客户端层网络的至少两个设备。在一个实施例中，客户端层网络指定由服务器层网络提供的服务器层通信服务必须具有的这些服务器层特性中的至少一个。在一个实施例中，服务器层网络向客户端层网络发送现有服务器层通信服务的这些服务器层特性中的至少一个的信号。在一个实施例中，客户端层网络和服务器层网络之间的这种信令包括发送扩展资源预留协议（RSVP）消息。

6. 发明授权

US09258174B1 Server-layer path negotiation between client and server network layers 有权
标题翻译：客户端和服务器网络层之间的服务器层路径协商
公开(公告)号：US09258174B1
公开(公告)日：2016-02-09
申请号：US13802053
申请日：2013-03-13
申请人： Ornan Alexander Gerstel , Zafar Ali , Walid Wakim , Clarence Filsfils
发明人： Ornan Alexander Gerstel , Zafar Ali , Walid Wakim , Clarence Filsfils
IPC分类号： G06F15/16 , H04L29/06 , H04Q11/00 , H04J14/02 , H04L12/701
CPC分类号： H04L29/06537 , H04J14/0227 , H04J14/0267 , H04L45/00 , H04L45/10 , H04L45/30 , H04L69/24 , H04Q11/0062 , H04Q2011/0081
摘要： In one embodiment, negotiation is performed between the client-layer (e.g., Layer-3 or Layer-2) network and the server-layer (e.g., optical) network to establish a path through the server-layer network with desired server-layer characteristics. This negotiation may include a first iteration of a client-layer request of one or more first server-layer characteristics followed by a negative server-layer response, and a subsequent iteration of a particular client-layer request of one or more particular server-layer characteristics followed by a positive server-layer response, with said particular server-layer characteristics including at least one relaxed server-layer characteristic of said first server-layer characteristics. One embodiment establishes, in response a client-layer request to the server-layer network responsive to the positive server-layer response, a server-layer path between said two client-layer devices that satisfies said particular server-layer characteristics, but does not satisfy said first server-layer characteristics.
摘要翻译：在一个实施例中，在客户端层（例如，第3层或第2层）网络和服务器层（例如，光纤）网络之间进行协商，以建立通过服务器层网络的路径，其中期望的服务器层特点该协商可以包括一个或多个第一服务器层特征的客户端层请求的第一次迭代，随后是否定的服务器层响应，以及一个或多个特定服务器层的特定客户端层请求的后续迭代所述特征随后是积极的服务器层响应，所述特定服务器层特性包括所述第一服务器层特性的至少一个放宽的服务器层特性。响应于服务器层网络响应于正服务器层响应的客户层请求，建立满足所述特定服务器层特性的所述两个客户端层设备之间的服务器层路径，但是不满足第一个服务器层的特点。

7. 发明授权

US09634924B2 Server-layer shared link risk group analysis to identify potential client-layer network connectivity loss 有权
公开(公告)号：US09634924B2
公开(公告)日：2017-04-25
申请号：US13792130
申请日：2013-03-10
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Jean-Philippe Vasseur
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Jean-Philippe Vasseur
IPC分类号： G06F15/173 , H04L12/707 , H04L12/709
CPC分类号： H04L45/22 , H04L45/245 , Y02D50/30
摘要： In one embodiment, a particular device within a client-layer network maintains client-layer topology information including server-layer Shared Risk Link Group (SRLG) information of server-layer devices and links in a server-layer network associated with client-layer links and client-layer nodes in the client-layer network. A determination is made to discover if there is an alternative client-layer path to an established client-layer path between a first packet switching device and a second packet switching device if all server-layer resources of any particular server-layer SRLG of a plurality of total server-layer SRLGs associated with the established client-layer path become unavailable. In one embodiment, the plurality of total server-layer SRLGs includes: an SRLG of a same optical node, an SRLG of a same optical fiber, an SRLG of co-located plurality of optical nodes, and/or an SRLG of co-located plurality of optical fibers.

8. 发明申请

US20140258486A1 Server-Layer Shared Link Risk Group Analysis to Identify Potential Client-Layer Network Connectivity Loss 有权
标题翻译：服务器层共享链路风险组分析来识别潜在的客户端层网络连通性损失
公开(公告)号：US20140258486A1
公开(公告)日：2014-09-11
申请号：US13792130
申请日：2013-03-10
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Jean-Philippe Vasseur
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Jean-Philippe Vasseur
IPC分类号： H04L12/56
CPC分类号： H04L45/22 , H04L45/245 , Y02D50/30
摘要： In one embodiment, a particular device within a client-layer network maintains client-layer topology information including server-layer Shared Risk Link Group (SRLG) information of server-layer devices and links in a server-layer network associated with client-layer links and client-layer nodes in the client-layer network. A determination is made to discover if there is an alternative client-layer path to an established client-layer path between a first packet switching device and a second packet switching device if all server-layer resources of any particular server-layer SRLG of a plurality of total server-layer SRLGs associated with the established client-layer path become unavailable. In one embodiment, the plurality of total server-layer SRLGs includes: an SRLG of a same optical node, an SRLG of a same optical fiber, an SRLG of co-located plurality of optical nodes, and/or an SRLG of co-located plurality of optical fibers.
摘要翻译：在一个实施例中，客户端层网络内的特定设备维护客户层拓扑信息，包括服务器层设备的服务器层共享风险链路组（SRLG）信息和与客户端层链路相关联的服务器层网络中的链路和客户端层网络中的客户端层节点。如果多个任何特定服务器层SRLG的所有服务器层资源的所有服务器层资源，则确定是否存在在第一分组交换设备和第二分组交换设备之间建立的客户端层路径的备选客户端层路径与建立的客户端层路径相关联的总服务器层SRLG将不可用。在一个实施例中，多个总服务器层SRLG包括：相同光节点的SRLG，相同光纤的SRLG，共同定位的多个光节点的SRLG和/或共同定位的SRLG 多根光纤。

9. 发明授权

US09391704B2 Replacing an existing network communications path with a new path using some exclusive physical resources of the existing path 有权
标题翻译：使用现有路径的一些独占物理资源替换现有的网络通信路径与新的路径
公开(公告)号：US09391704B2
公开(公告)日：2016-07-12
申请号：US13769355
申请日：2013-02-17
申请人： Ornan Alexander Gerstel , Zafar Ali , Clarence Filsfils , George Leonard Swallow , Matthew Hartley
发明人： Ornan Alexander Gerstel , Zafar Ali , Clarence Filsfils , George Leonard Swallow , Matthew Hartley
IPC分类号： H04B10/27 , H04L12/729 , H04L12/721 , H04L12/707 , H04L12/717
CPC分类号： H04B10/27 , H04L45/12 , H04L45/125 , H04L45/22 , H04L45/42 , H04L45/62
摘要： In one embodiment, a replacement network communications path is determined using dedicated resources of an existing path. One or more network elements in a network determines a new communications path between a first network node and a second network node in the network while an existing communications path is currently configured in the network to carry traffic between the first and second network nodes. The existing communications path includes one or more exclusive physical resources dedicated to the existing communications path. The new communications path includes at least one of said exclusive physical resources dedicated to the existing communications path. One embodiment includes: subsequent to said determining the new communications path, removing the existing communications path from service, and then instantiating the new communications path, with the new communications path including said at least one of said exclusive physical resources.
摘要翻译：在一个实施例中，使用现有路径的专用资源来确定替换网络通信路径。网络中的一个或多个网络元件确定网络中的第一网络节点和第二网络节点之间的新的通信路径，而现有的通信路径当前被配置在网络中以承载第一和第二网络节点之间的业务。现有的通信路径包括专用于现有通信路径的一个或多个专用物理资源。新的通信路径包括专用于现有通信路径的所述独占物理资源中的至少一个。一个实施例包括：在所述确定新的通信路径之后，从服务中移除现有的通信路径，然后实例化新的通信路径，新的通信路径包括所述独占物理资源中的所述至少一个。

10. 发明申请

US20140233946A1 Replacing an Existing Network Communications Path with a New Path Using Some Exclusive Physical Resources of the Existing Path 有权
标题翻译：使用现有路径的一些独占物理资源替换现有网络通信路径与新的路径
公开(公告)号：US20140233946A1
公开(公告)日：2014-08-21
申请号：US13769355
申请日：2013-02-17
申请人： Ornan Alexander Gerstel , Zafar Ali , Clarence Filsfils , George Leonard Swallow , Matthew Hartley
发明人： Ornan Alexander Gerstel , Zafar Ali , Clarence Filsfils , George Leonard Swallow , Matthew Hartley
IPC分类号： H04B10/27
CPC分类号： H04B10/27 , H04L45/12 , H04L45/125 , H04L45/22 , H04L45/42 , H04L45/62
摘要： In one embodiment, a replacement network communications path is determined using dedicated resources of an existing path. One or more network elements in a network determines a new communications path between a first network node and a second network node in the network while an existing communications path is currently configured in the network to carry traffic between the first and second network nodes. The existing communications path includes one or more exclusive physical resources dedicated to the existing communications path. The new communications path includes at least one of said exclusive physical resources dedicated to the existing communications path. One embodiment includes: subsequent to said determining the new communications path, removing the existing communications path from service, and then instantiating the new communications path, with the new communications path including said at least one of said exclusive physical resources.
摘要翻译：在一个实施例中，使用现有路径的专用资源来确定替换网络通信路径。网络中的一个或多个网络元件确定网络中的第一网络节点和第二网络节点之间的新的通信路径，而现有的通信路径当前被配置在网络中以承载第一和第二网络节点之间的业务。现有的通信路径包括专用于现有通信路径的一个或多个专用物理资源。新的通信路径包括专用于现有通信路径的所述独占物理资源中的至少一个。一个实施例包括：在所述确定新的通信路径之后，从服务中移除现有的通信路径，然后实例化新的通信路径，新的通信路径包括所述独占物理资源中的所述至少一个。

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