公开(公告)号：US20150263864A1

公开(公告)日：2015-09-17

申请号：US14209744

申请日：2014-03-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Fang Yang ,  Kathy Xia Ke ,  Isidoros Kouvelas ,  Christian Cassar

IPC: H04L12/18

CPC classification number: H04L12/185

Abstract: In one embodiment, a method includes discovering at a first edge device in a first network that a multicast source has moved from the first network to a second network, the first edge device in communication through a core network with a plurality of edge devices belonging to a multicast group comprising the multicast source, transmitting from the first edge device to a second edge device in the second network, a join request for the multicast group comprising the multicast source at the second network, receiving multicast traffic for the multicast group at the first edge device on a transient multicast tree extending from the second edge device to the plurality of edge devices, and forwarding the multicast traffic to the plurality of edge devices. An apparatus and logic are also disclosed herein.

Abstract translation: 在一个实施例中，一种方法包括在第一网络中的第一边缘设备发现组播源已经从第一网络移动到第二网络，第一边缘设备通过核心网络与多个边缘设备属于 包括所述组播源的组播组，从所述第一边缘设备向所述第二网络中的第二边缘设备发送包括所述组播源在内的所述多播组的加入请求，所述多播组在所述第二网络处包括所述多播组， 在从第二边缘设备延伸到多个边缘设备的瞬时多播树上，将多播流量转发到多个边缘设备。 本文还公开了一种装置和逻辑。