PCB(process control block),
2009-08-06 13:00
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在拓扑变化时,DUAL 之所以收敛速度快,原因之一就在于它使用通向其它路由器的备用路径,这些路由器称为可行后继路由器 ,备用路径使得无需重新计算 DUAL。
术语 可行后继路由器 (FS) 是指一个邻居,它有一条通向后继路由器所连通的同一个目的网络的无环备用路径,并且满足可行性条件。
当邻居通向一个网络的报告距离 (RD) 比本地路由器通向同一个目的网络的可行距离短时,即符合了可行性条件 (FC)。报告距离(或称通告距离)即为 EIGRP 邻居通向相同目的网络的可行距离。报告距离是路由器向邻居报告的、有关自身通向该网络的开销的度量。
本文出自 “07net01” 博客,请务必保留此出处http://07net01.blog.51cto.com/1192774/583277
术语 可行后继路由器 (FS) 是指一个邻居,它有一条通向后继路由器所连通的同一个目的网络的无环备用路径,并且满足可行性条件。
当邻居通向一个网络的报告距离 (RD) 比本地路由器通向同一个目的网络的可行距离短时,即符合了可行性条件 (FC)。报告距离(或称通告距离)即为 EIGRP 邻居通向相同目的网络的可行距离。报告距离是路由器向邻居报告的、有关自身通向该网络的开销的度量。
本文出自 “07net01” 博客,请务必保留此出处http://07net01.blog.51cto.com/1192774/583277
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