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1. 发明授权

US07684316B2 Multicast fast reroute for network topologies 有权
标题翻译：组播快速重路由用于网络拓扑
公开(公告)号：US07684316B2
公开(公告)日：2010-03-23
申请号：US12069709
申请日：2008-02-12
申请人： Clarence Filsfils , Gregory Shepherd , Apoorva Karan , John M. Zwiebel , Dino Farinacci
发明人： Clarence Filsfils , Gregory Shepherd , Apoorva Karan , John M. Zwiebel , Dino Farinacci
IPC分类号： G06F11/00 , H04L12/26
CPC分类号： H04L45/00 , H04L12/185 , H04L12/1868 , H04L12/1886 , H04L45/16 , H04L45/22 , H04L45/28
摘要： In one embodiment, a method includes receiving a multicast join message at a node having a plurality of interfaces, identifying the interface at which the join message was received, and selecting one or more of the interfaces to transmit the join message based on whether the join message was received on a ring interface. If the join message was received on one of the ring interfaces, the join message is transmitted on another of the interfaces. If the join message was not received on one of the ring interfaces, the join message is transmitted on both of the ring interfaces. The method further includes receiving multicast data and transmitting the multicast data on the interface at which the join message was received.
摘要翻译：在一个实施例中，一种方法包括在具有多个接口的节点处接收多播加入消息，识别接收到加入消息的接口，以及基于该连接是否选择一个或多个接口来发送加入消息在一个环形接口上收到消息。如果在其中一个环形接口上收到加入消息，则在另一个接口上传输加入消息。如果其中一个环接口没有收到加入消息，则在两个环形接口上都会发送加入消息。该方法还包括接收组播数据，并在接收到加入消息的接口上发送组播数据。

2. 发明申请

US20090201803A1 Multicast fast reroute for network topologies 有权
标题翻译：组播快速重路由用于网络拓扑
公开(公告)号：US20090201803A1
公开(公告)日：2009-08-13
申请号：US12069709
申请日：2008-02-12
申请人： Clarence Filsfils , Gregory Shepherd , Apoorva Karan , John M. Zwiebel , Dino Farinacci
发明人： Clarence Filsfils , Gregory Shepherd , Apoorva Karan , John M. Zwiebel , Dino Farinacci
IPC分类号： G06F11/07
CPC分类号： H04L45/00 , H04L12/185 , H04L12/1868 , H04L12/1886 , H04L45/16 , H04L45/22 , H04L45/28
摘要： In one embodiment, a method includes receiving a multicast join message at a node having a plurality of interfaces, identifying the interface at which the join message was received, and selecting one or more of the interfaces to transmit the join message based on whether the join message was received on a ring interface. If the join message was received on one of the ring interfaces, the join message is transmitted on another of the interfaces. If the join message was not received on one of the ring interfaces, the join message is transmitted on both of the ring interfaces. The method further includes receiving multicast data and transmitting the multicast data on the interface at which the join message was received.
摘要翻译：在一个实施例中，一种方法包括在具有多个接口的节点处接收多播加入消息，识别接收到加入消息的接口，以及基于该连接是否选择一个或多个接口来发送加入消息在一个环形接口上收到消息。如果在其中一个环形接口上收到加入消息，则在另一个接口上传输加入消息。如果其中一个环接口没有收到加入消息，则在两个环形接口上都会发送加入消息。该方法还包括接收组播数据，并在接收到加入消息的接口上发送组播数据。

3. 发明授权

US08169924B2 Optimal bridging over MPLS/IP through alignment of multicast and unicast paths 有权
标题翻译：通过组播和单播路径对齐，实现MPLS / IP上的最佳桥接
公开(公告)号：US08169924B2
公开(公告)日：2012-05-01
申请号：US11296550
申请日：2005-12-07
申请人： Ali Sajassi , Dino Farinacci , John M. Zwiebel , Daniel Alvarez
发明人： Ali Sajassi , Dino Farinacci , John M. Zwiebel , Daniel Alvarez
IPC分类号： G01R31/08
CPC分类号： H04L45/00 , H04L45/26
摘要： A provider edge (PE) node of a network operates to send a trace path message over the network to a receiver PE node, the trace path message recording a list of intermediate nodes of a unicast path from the PE node to the receiver PE node; and receive a join message initiated from the receiver PE node, the join message using the list to propagate to the source PE node through the intermediate nodes such that a branch of a multicast tree is aligned with the unicast path. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
摘要翻译：网络的提供者边缘（PE）节点操作以通过网络向接收者PE节点发送跟踪路径消息，跟踪路径消息记录从PE节点到接收者PE节点的单播路径的中间节点列表; 并接收从接收者PE节点发起的加入消息，使用该列表的加入消息通过中间节点传播到源PE节点，使得多播树的分支与单播路径对齐。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。

4. 发明授权

US07855950B2 Congruent forwarding paths for unicast and multicast traffic 有权
标题翻译：单播和组播流量的一致转发路径
公开(公告)号：US07855950B2
公开(公告)日：2010-12-21
申请号：US11296149
申请日：2005-12-07
申请人： John M. Zwiebel , Ali Sajassi , Dino Farinacci , Daniel Alvarez
发明人： John M. Zwiebel , Ali Sajassi , Dino Farinacci , Daniel Alvarez
IPC分类号： G01R31/08 , H04L12/28 , H04H20/71 , G06F15/16
CPC分类号： H04L45/00 , H04L12/1836 , H04L12/185 , H04L45/16 , H04L45/48 , H04L45/50
摘要： A mechanism that provides congruent forwarding paths for unicast and multicast data traffic over a service provider core network includes issuing, by a receiver edge node, a request to join a multicast tree structure. A unicast path from the receiver edge node to a source node of the provider network is then established using a special message that contains an identifier. The identifier allows the unicast path through the core network to be aligned with the multicast tree structure. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
摘要翻译：通过服务提供商核心网络为单播和组播数据流量提供一致的转发路径的机制包括由接收者边缘节点发出加入多播树结构的请求。然后使用包含标识符的特殊消息来建立从接收器边缘节点到提供商网络的源节点的单播路径。标识符允许通过核心网络的单播路径与多播树结构对齐。要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

5. 发明申请

US20080267078A1 Multicast fast reroute 有权
标题翻译：组播快速重路由
公开(公告)号：US20080267078A1
公开(公告)日：2008-10-30
申请号：US11789927
申请日：2007-04-26
申请人： Dino Farinacci , David R. Oran , John M. Zwiebel
发明人： Dino Farinacci , David R. Oran , John M. Zwiebel
IPC分类号： G08C15/00
CPC分类号： H04L45/16 , H04L12/185 , H04L12/1877 , H04L45/02 , H04L45/22 , H04L45/28
摘要： A method and apparatus for fast reroute of multicast data are disclosed. In one embodiment, a method includes transmitting a multicast join message from a receiver towards a source on a primary path and transmitting an alternate multicast join message from the receiver towards the source on a backup path. Data packets are then received from the primary and backup paths. The method further includes operating in a first mode wherein the data packets received from the primary path are accepted and the data packets received from the backup path are dropped, and switching to a second mode wherein the data packets received from the backup path are accepted, upon detecting a failure in the primary path.
摘要翻译：公开了一种快速重路由多播数据的方法和装置。在一个实施例中，一种方法包括从接收器向主路径上的源发送多播加入消息，并且在备用路径上从接收器向源发送备用组播加入消息。然后从主路径和备份路径接收数据包。该方法还包括以第一模式操作，其中从主路径接收的数据分组被接受，并且从备用路径接收到的数据分组被丢弃，并且切换到第二模式，其中从备用路径接收的数据分组被接受，在检测到主路径中的故障时。

6. 发明授权

US07808993B2 Bidirectional multicast protocol with upstream and downstream join messages 有权
标题翻译：具有上行和下行连接消息的双向多播协议
公开(公告)号：US07808993B2
公开(公告)日：2010-10-05
申请号：US11258641
申请日：2005-10-26
申请人： John M. Zwiebel , Dino Farinacci
发明人： John M. Zwiebel , Dino Farinacci
IPC分类号： H04B3/20
CPC分类号： H04L12/185 , H04L45/16
摘要： Systems and methods for implementing a bidirectional multicast protocol with two types of join messages are disclosed. The two types of join messages, upstream joins and downstream joins, are used to control the Reverse Path Forwarding (RPF) interface is added to the outgoing interface list for a particular multicast group, which in turn controls when multicast packets will be forwarded to the rendezvous point. One method involves receiving a multicast packet addressed to multicast group G. The method inhibits the multicast packet from being forwarded via the RPF interface, unless the outgoing interface list corresponding to the multicast group G already identifies the RPF interface. The RPF interface can be added to the outgoing interface list in response to reception of a downstream join message via the RPF interface, as well as in response to monitoring, via the RPF interface, an upstream join message on a shared network segment.
摘要翻译：公开了用于实现具有两种类型的连接消息的双向多播协议的系统和方法。两种类型的连接消息，上游连接和下游连接用于控制反向路径转发（RPF）接口被添加到特定多播组的出站接口列表，这反过来控制何时将组播数据包转发到会合点。一种方法是接收到组播组G的组播报文。除非与组播组G对应的出接口列表已经识别出RPF接口，否则该方法禁止通过RPF接口转发组播报文。响应于通过RPF接口接收到下游加入消息，RPF接口可以被添加到出接口列表中，并且响应于通过RPF接口监视共享网段上的上游加入消息。

7. 发明授权

US09240893B2 Bidirectional multicast protocol with upstream and downstream join messages 有权
标题翻译：具有上行和下行连接消息的双向多播协议
公开(公告)号：US09240893B2
公开(公告)日：2016-01-19
申请号：US12897420
申请日：2010-10-04
申请人： John M. Zwiebel , Dino Farinacci
发明人： John M. Zwiebel , Dino Farinacci
IPC分类号： H04L12/18 , H04L12/761
CPC分类号： H04L12/185 , H04L45/16
摘要： Systems and methods for implementing a bidirectional multicast protocol with two types of join messages are disclosed. The two types of join messages, upstream joins and downstream joins, are used to control the Reverse Path Forwarding (RPF) interface is added to the outgoing interface list for a particular multicast group, which in turn controls when multicast packets will be forwarded to the rendezvous point. One method involves receiving a multicast packet addressed to multicast group G. The method inhibits the multicast packet from being forwarded via the RPF interface, unless the outgoing interface list corresponding to the multicast group G already identifies the RPF interface. The RPF interface can be added to the outgoing interface list in response to reception of a downstream join message via the RPF interface, as well as in response to monitoring, via the RPF interface, an upstream join message on a shared network segment.
摘要翻译：公开了用于实现具有两种类型的连接消息的双向多播协议的系统和方法。两种类型的连接消息，上游连接和下游连接用于控制反向路径转发（RPF）接口被添加到特定多播组的出站接口列表，这反过来控制何时将组播数据包转发到会合点。一种方法是接收到组播组G的组播报文。除非与组播组G对应的出接口列表已经识别出RPF接口，否则该方法禁止通过RPF接口转发组播报文。响应于通过RPF接口接收到下游加入消息，RPF接口可以被添加到出接口列表中，并且响应于通过RPF接口监视共享网段上的上游加入消息。

8. 发明申请

US20110211578A1 Bidirectional Multicast Protocol with Upstream and Downstream Join Messages 审中-公开
标题翻译：具有上游和下游连接消息的双向组播协议
公开(公告)号：US20110211578A1
公开(公告)日：2011-09-01
申请号：US12897420
申请日：2010-10-04
申请人： John M. Zwiebel , Dino Farinacci
发明人： John M. Zwiebel , Dino Farinacci
IPC分类号： H04L12/56
CPC分类号： H04L12/185 , H04L45/16
摘要： Systems and methods for implementing a bidirectional multicast protocol with two types of join messages are disclosed. The two types of join messages, upstream joins and downstream joins, are used to control the Reverse Path Forwarding (RPF) interface is added to the outgoing interface list for a particular multicast group, which in turn controls when multicast packets will be forwarded to the rendezvous point. One method involves receiving a multicast packet addressed to multicast group G. The method inhibits the multicast packet from being forwarded via the RPF interface, unless the outgoing interface list corresponding to the multicast group G already identifies the RPF interface. The RPF interface can be added to the outgoing interface list in response to reception of a downstream join message via the RPF interface, as well as in response to monitoring, via the RPF interface, an upstream join message on a shared network segment.
摘要翻译：公开了用于实现具有两种类型的连接消息的双向多播协议的系统和方法。两种类型的连接消息，上游连接和下游连接用于控制反向路径转发（RPF）接口被添加到特定多播组的出站接口列表，这反过来控制何时将组播数据包转发到会合点。一种方法是接收到组播组G的组播报文。除非与组播组G对应的出接口列表已经识别出RPF接口，否则该方法禁止通过RPF接口转发组播报文。响应于通过RPF接口接收到下游加入消息，RPF接口可以被添加到出接口列表中，并且响应于通过RPF接口监视共享网段上的上游加入消息。

9. 发明授权

US07826348B2 Multicast fast reroute 有权
标题翻译：组播快速重路由
公开(公告)号：US07826348B2
公开(公告)日：2010-11-02
申请号：US11789927
申请日：2007-04-26
申请人： Dino Farinacci , David R. Oran , John M. Zwiebel
发明人： Dino Farinacci , David R. Oran , John M. Zwiebel
IPC分类号： H04L12/28
CPC分类号： H04L45/16 , H04L12/185 , H04L12/1877 , H04L45/02 , H04L45/22 , H04L45/28
摘要： A method and apparatus for fast reroute of multicast data are disclosed. In one embodiment, a method includes transmitting a multicast join message from a receiver towards a source on a primary path and transmitting an alternate multicast join message from the receiver towards the source on a backup path. Data packets are then received from the primary and backup paths. The method further includes operating in a first mode wherein the data packets received from the primary path are accepted and the data packets received from the backup path are dropped, and switching to a second mode wherein the data packets received from the backup path are accepted, upon detecting a failure in the primary path.
摘要翻译：公开了一种快速重路由多播数据的方法和装置。在一个实施例中，一种方法包括从接收器向主路径上的源发送多播加入消息，并且在备用路径上从接收器向源发送备用组播加入消息。然后从主路径和备份路径接收数据包。该方法还包括以第一模式操作，其中从主路径接收的数据分组被接受，并且从备用路径接收到的数据分组被丢弃，并且切换到第二模式，其中从备用路径接收的数据分组被接受，在检测到主路径中的故障时。

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