公开(公告)号：US20130070604A1

公开(公告)日：2013-03-21

申请号：US13350234

申请日：2012-01-13

申请人： Wenhu LU ,  Ing-Wher CHEN ,  Alfred C. LINDEM, III

发明人： Wenhu LU ,  Ing-Wher CHEN ,  Alfred C. LINDEM, III

IPC分类号： H04L12/26

CPC分类号： H04L45/586 ,  H04L45/021 ,  H04L45/026 ,  H04L45/28

摘要： OSPF NSR with link derivation synchronization is described. When a network element having an active OSPF instance and a standby OSPF instance attempts to create a FULL adjacency with a neighbor network element using a neighbor data structure of the active OSPF instance, and if and when a switch causes the second OSPF instance to act as the active OSPF instance, neighbor information is retrieved from the LSAs of the standby OSPF instance and a link is derived between the network element and the neighbor network element based on the retrieved neighbor information. In one embodiment, the standby OSPF instance retrieves virtual neighbor information from its LSAs and derives a virtual link between the network element and the neighbor network element based on the retrieved virtual neighbor information without having to synchronize the neighbor information between the active and standby OSPF instance.

摘要翻译： 描述了具有链路导出同步的OSPF NSR。 当具有活动OSPF实例和备用OSPF实例的网元尝试使用活动OSPF实例的邻居数据结构与邻居网元建立FULL邻接关系时，以及交换机如果和何时使第二个OSPF实例充当 主动OSPF实例，从备用OSPF实例的LSA检索邻居信息，并根据检索到的邻居信息在网元和邻居网元之间导出链路。 在一个实施例中，备用OSPF实例从其LSA检索虚拟邻居信息，并且基于检索到的虚拟邻居信息导出网元和邻居网元之间的虚拟链路，而不必同步主备OSPF实例之间的邻居信息 。