公开(公告)号：US20140317256A1

公开(公告)日：2014-10-23

申请号：US13865240

申请日：2013-04-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yu Jiang ,  Jerry Ziyi Lu ,  Jeffrey Cai ,  Kevin Fang

IPC: H04L12/751

CPC classification number: H04L45/02 ,  H04L45/48 ,  H04L45/64

Abstract: A controller, e.g., a software-defined network (SDN) controller, stores data representing a topology of a network that includes a plurality of network elements. A move is detected of a host between network elements in the network and a destination network element to which the host has moved is determined. The destination network element is designated as a root of a tree in the network. A topology for the tree is generated using the destination network element as the root of the tree. Following the topology of the tree, starting with the root, parent network elements in the tree are updated for a traffic flow for the host before child network elements are updated.

Abstract translation: 诸如软件定义网络（SDN）控制器的控制器存储表示包括多个网络元件的网络拓扑的数据。 检测到网络中的网络元件之间的主机和主机已经移动到的目的地网络元件的移动。 目标网元被指定为网络中树的根。 使用目标网络元素作为树的根生成树的拓扑。 根据树的拓扑结构，从根开始，在子网络元素更新之前，树中的父网络元素针对主机的流量进行更新。