公开(公告)号：US20160127269A1

公开(公告)日：2016-05-05

申请号：US14527289

申请日：2014-10-29

Applicant: Cisco Technology, Inc.

Inventor： Ijsbrand Wijnands ,  Nagendra K. Nainar ,  Rajiv Asati ,  Carlos M. Pignataro

IPC: H04L12/931 ,  H04L29/12

CPC classification number: H04L49/201 ,  H04L12/185 ,  H04L45/16 ,  H04L45/741 ,  H04L61/2069

Abstract: In one embodiment, a first device in a multicast label distribution (mLDP) network receives a first label mapping message that includes IPv4 and IPv6 addresses of a root node of a multicast tree. The first device also receives a second label mapping message from a second device that identifies the multicast tree and includes one of: the IPv4 address or the IPv6 address of the root node. The first device determines that the second label mapping message is associated with the multicast tree. In response to determining that the second label mapping message is associated with the multicast tree, the first device adds the second device to the multicast tree.

Abstract translation: 在一个实施例中，多播标签分发（mLDP）网络中的第一设备接收包括多播树根节点的IPv4和IPv6地址的第一标签映射消息。 第一设备还从识别多播树的第二设备接收第二标签映射消息，并且包括IPv4地址或根节点的IPv6地址之一。 第一设备确定第二标签映射消息与多播树相关联。 响应于确定第二标签映射消息与多播树相关联，第一设备将第二设备添加到多播树中。

公开(公告)号：US09876736B2

公开(公告)日：2018-01-23

申请号：US14527289

申请日：2014-10-29

Applicant: Cisco Technology, Inc.

Inventor： Ijsbrand Wijnands ,  Nagendra K. Nainar ,  Rajiv Asati ,  Carlos M. Pignataro

IPC: H04L12/26 ,  H04L12/931 ,  H04L12/18 ,  H04L29/12 ,  H04L12/749 ,  H04L12/761

CPC classification number: H04L49/201 ,  H04L12/185 ,  H04L45/16 ,  H04L45/741 ,  H04L61/2069

Abstract: In one embodiment, a first device in a multicast label distribution (mLDP) network receives a first label mapping message that includes IPv4 and IPv6 addresses of a root node of a multicast tree. The first device also receives a second label mapping message from a second device that identifies the multicast tree and includes one of: the IPv4 address or the IPv6 address of the root node. The first device determines that the second label mapping message is associated with the multicast tree. In response to determining that the second label mapping message is associated with the multicast tree, the first device adds the second device to the multicast tree.

公开(公告)号：US09608858B2

公开(公告)日：2017-03-28

申请号：US14336839

申请日：2014-07-21

Applicant: Cisco Technology, Inc.

Inventor： Rajiv Asati ,  Nagendra K. Nainar ,  Carlos M. Pignataro ,  George Swallow

IPC: G01R31/08 ,  H04L12/24 ,  H04L12/707 ,  H04L29/14 ,  H04L12/703

CPC classification number: H04L41/0659 ,  H04L43/0811 ,  H04L45/24 ,  H04L45/28 ,  H04L69/40

Abstract: In one embodiment, an ingress router sends a multipath information query across a computer network toward an egress router, and builds an entropy table based on received query responses. The entropy table maps the egress router to one or more available paths to the egress router, and associated entropy information for each respective available path of the one or more available paths. The ingress router may then forward traffic to the egress router using the entropy table to load share the traffic across the one or more available paths using the associated entropy information for each respective available path. In response to detecting a failure of a particular path of the one or more available paths, however, the ingress router then removes the particular path from the entropy table, thereby ceasing forwarding of traffic over the particular path.

公开(公告)号：US20160020941A1

公开(公告)日：2016-01-21

申请号：US14336839

申请日：2014-07-21

Applicant: Cisco Technology, Inc.

Inventor： Rajiv Asati ,  Nagendra K. Nainar ,  Carlos M. Pignataro ,  George Swallow

IPC: H04L12/24 ,  H04L12/803 ,  H04L29/14 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L41/0659 ,  H04L43/0811 ,  H04L45/24 ,  H04L45/28 ,  H04L69/40

Abstract: In one embodiment, an ingress router sends a multipath information query across a computer network toward an egress router, and builds an entropy table based on received query responses. The entropy table maps the egress router to one or more available paths to the egress router, and associated entropy information for each respective available path of the one or more available paths. The ingress router may then forward traffic to the egress router using the entropy table to load share the traffic across the one or more available paths using the associated entropy information for each respective available path. In response to detecting a failure of a particular path of the one or more available paths, however, the ingress router then removes the particular path from the entropy table, thereby ceasing forwarding of traffic over the particular path.

Abstract translation: 在一个实施例中，入口路由器通过计算机网络向出口路由器发送多路径信息查询，并且基于接收到的查询响应构建熵表。 熵表将出口路由器映射到出口路由器的一个或多个可用路径，以及针对一个或多个可用路径的每个相应可用路径的相关熵信息。 入口路由器然后可以使用熵表将业务转发到出口路由器，以使用针对每个相应的可用路径的相关联的熵信息加载共享一个或多个可用路径上的流量。 然而，响应于检测到一个或多个可用路径的特定路径的故障，入口路由器然后从熵表中去除特定路径，从而停止在特定路径上的业务的转发。