公开(公告)号：US08018852B2

公开(公告)日：2011-09-13

申请号：US10746056

申请日：2003-12-24

申请人： Joseph Olakangil ,  Sahil Dighe ,  Kishore C Rao

发明人： Joseph Olakangil ,  Sahil Dighe ,  Kishore C Rao

IPC分类号： G01R31/08

CPC分类号： H04L45/00

摘要： A method and system for augmenting routing decisions in a network switching device with topology information acquired using source learning are disclosed. In the preferred embodiment, the method of selecting a port to transmit an outbound flow from a first node to a second node comprises the steps of identifying a plurality of ports associated with minimal equal-cost paths from the first node to the second node, and if an inbound flow from the second node is detected on a first port of the plurality of ports of the first node, then transmitting the outbound flow from the first port. In the absence of an inbound flow from the second node, the first node generally selects the port for the outbound flow from the plurality of minimal equal-cost paths. The present invention allows a switching device to take advantage of the path determination made at another router in the network while avoiding inconsistencies between conventional route selection operations and IP source learning in switching devices adapted to perform bridging on IP address.

摘要翻译： 公开了一种在使用源学习获取的拓扑信息的网络交换设备中增加路由决策的方法和系统。 在优选实施例中，选择从第一节点向第二节点发送出站流的端口的方法包括以下步骤：识别与从第一节点到第二节点的最小等价路径相关联的多个端口，以及 如果在第一节点的多个端口的第一端口上检测到来自第二节点的入站流，则从第一端口发送出站流。 在没有来自第二节点的入站流的情况下，第一节点通常从多个最小等价路径中选择出站流的端口。 本发明允许交换设备利用在网络中的另一个路由器处进行的路径确定，同时避免了常规路由选择操作和适于在IP地址上进行桥接的交换设备中的IP源学习之间的不一致。