发明申请
US20070180104A1 Technique for enabling bidirectional forwarding detection between edge devices in a computer network
有权
用于在计算机网络中的边缘设备之间启用双向转发检测的技术
- 专利标题： Technique for enabling bidirectional forwarding detection between edge devices in a computer network
- 专利标题（中）： 用于在计算机网络中的边缘设备之间启用双向转发检测的技术
-
申请号： US11342446申请日： 2006-01-30
-
公开(公告)号： US20070180104A1公开(公告)日： 2007-08-02
- 发明人: Clarence Filsfils , David Ward
- 申请人： Clarence Filsfils , David Ward
- 主分类号： G06F15/173
- IPC分类号： G06F15/173 ; G06F15/16
摘要：
A technique enables bidirectional forwarding detection (BFD) between first and second edge devices in a computer network, wherein the second edge device is not configured for BFD. According to the novel technique, a BFD Echo session is established from the first edge device to the first edge device via the second edge device, i.e., along a monitored path (e.g., a single link). Also, an external border gateway protocol (eBGP) session is established between the first and second edge devices over an alternate path (e.g., an eBGP multi-hop session). The first edge device determines that the monitored path is down upon not receiving a returned BFD Echo message from the second edge device. In response, the first edge device notifies the second edge device that the monitored path is down through the eBGP session over the alternate path. Notably, upon notifying the second edge device that the monitored path is down, the first edge device breaks the eBGP session, and upon receiving the notification, the second edge device also breaks the eBGP session.
公开/授权文献
信息查询
