公开(公告)号：US09992099B2

公开(公告)日：2018-06-05

申请号：US14714806

申请日：2015-05-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yiqun Cai ,  Heidi Ou

IPC: H04L12/28 ,  H04L12/761 ,  H04L12/18 ,  H04L12/721 ,  H04L12/743 ,  H04L12/707

CPC classification number: H04L45/16 ,  H04L12/185 ,  H04L45/22 ,  H04L45/38 ,  H04L45/7453

Abstract: In one embodiment, a method includes transmitting a packet from a router located in a communication path between a source and a receiver, the packet having one or more values used to select a group designated router from a list of candidate group designated routers for multicast traffic streams, selecting the router as said group designated router for one or more of the multicast traffic streams, and forwarding traffic for the one or more multicast traffic streams to the receiver. The candidate group designated routers are last hop routers for transmitting the multicast traffic streams to a common link connected to the receiver. An apparatus is also disclosed herein.

公开(公告)号：US20180212861A1

公开(公告)日：2018-07-26

申请号：US15413131

申请日：2017-01-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Heidi Ou ,  Sridhar Vallepalli

IPC: H04L12/751 ,  H04L12/761

CPC classification number: H04L45/02 ,  H04L12/1877 ,  H04L45/16

Abstract: Methods for distributing multicast network path information to various network nodes in a network environment are disclosed. An exemplary method includes a downstream node transmitting a first message including a network path indicating a specific desired route that is to be used when delivering multicast traffic from a given multicast source to a given host, as well as an identifier assigned to the network path in order to uniquely identify that network path in the network. The method also includes the downstream node transmitting a second message for announcing that the multicast source is to be reached via the network path announced in the first message. The second message identifies the network path to be used by including the identifier of the path announced in the first message, but not the network path itself.

公开(公告)号：US20150249594A1

公开(公告)日：2015-09-03

申请号：US14714806

申请日：2015-05-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yiqun Cai ,  Heidi Ou

IPC: H04L12/761 ,  H04L12/18 ,  H04L12/743 ,  H04L12/721

CPC classification number: H04L45/16 ,  H04L12/185 ,  H04L45/22 ,  H04L45/38 ,  H04L45/7453

Abstract: In one embodiment, a method includes transmitting a packet from a router located in a communication path between a source and a receiver, the packet having one or more values used to select a group designated router from a list of candidate group designated routers for multicast traffic streams, selecting the router as said group designated router for one or more of the multicast traffic streams, and forwarding traffic for the one or more multicast traffic streams to the receiver. The candidate group designated routers are last hop routers for transmitting the multicast traffic streams to a common link connected to the receiver. An apparatus is also disclosed herein.

Abstract translation: 在一个实施例中，一种方法包括从位于源和接收机之间的通信路径中的路由器发送分组，所述分组具有用于从用于多播业务的候选组指定路由器的列表中选择组指定路由器的一个或多个值 流，选择作为所述组指定路由器的一个或多个多播业务流的路由器，以及将一个或多个多播业务流的流量转发到接收机。 候选组指定路由器是用于将多播业务流发送到连接到接收机的公共链路的最后一跳路由器。 本文还公开了一种装置。

公开(公告)号：US10389618B2

公开(公告)日：2019-08-20

申请号：US15413131

申请日：2017-01-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Heidi Ou ,  Sridhar Vallepalli

IPC: H04L12/751 ,  H04L12/761 ,  H04L12/18

Abstract: Methods for distributing multicast network path information to various network nodes in a network environment are disclosed. An exemplary method includes a downstream node transmitting a first message including a network path indicating a specific desired route that is to be used when delivering multicast traffic from a given multicast source to a given host, as well as an identifier assigned to the network path in order to uniquely identify that network path in the network. The method also includes the downstream node transmitting a second message for announcing that the multicast source is to be reached via the network path announced in the first message. The second message identifies the network path to be used by including the identifier of the path announced in the first message, but not the network path itself.