公开(公告)号：US09374270B2

公开(公告)日：2016-06-21

申请号：US13843365

申请日：2013-03-15

Applicant: Juniper Networks, Inc.

Inventor： Harshad Bhaskar Nakil ,  Pedro R. Marques ,  Hampapur Ajay ,  Ashish Ranjan ,  Ankur Singla

IPC: H04L12/28 ,  H04L12/24 ,  H04L12/931 ,  H04L12/751 ,  H04L29/08 ,  H04L12/703

CPC classification number: H04L41/0668 ,  H04L41/0659 ,  H04L41/12 ,  H04L45/02 ,  H04L45/28 ,  H04L49/70 ,  H04L67/32

Abstract: Techniques are described to provide multicast service within a virtual network using a virtual network controller and endpoint replication without requiring multicast support in the underlying network. The virtual network controller is configured to create a multicast tree for endpoint devices of a multicast group in the virtual network at a centralized location instead of in a distributed fashion. The virtual network controller communicates the multicast tree to one or more of the endpoint devices of the multicast group to instruct the endpoint devices to replicate and forward multicast packets to other endpoint devices according to the multicast tree. The replication and forwarding of multicast packets is performed by virtual switches executed on the endpoint devices in the virtual network. No replication is performed within the underlying network. The techniques enable multicast service within a virtual network without requiring multicast support in the underlying network.

Abstract translation: 描述技术来使用虚拟网络控制器和端点复制在虚拟网络内提供多播服务，而不需要在底层网络中进行组播支持。 虚拟网络控制器被配置为在集中位置而不是以分布式方式为虚拟网络中的多播组的端点设备创建多播树。 虚拟网络控制器将多播树通信给组播组的一个或多个端点设备，以指示端点设备根据多播树复制和转发组播数据包到其他端点设备。 组播数据包的复制和转发由在虚拟网络中的端点设备上执行的虚拟交换机执行。 底层网络中不执行复制。 这些技术使得虚拟网络内的多播服务能够在底层网络中不需要组播支持。