loop-free-alternate的意思 loop-free-alternate命令通常用于网络路由协议OSPF(Open Shortest Path First)中,用来使能OSPF IP FRR(Fast Reroute)功能。这个命令利用LFA(Link-State FRR)算法来计算备份下一跳和备份出接口,以提供无环的备份路由。通过这种方式,当主路径发生故障时,流量可以快速切换到备份路径,从而提高了...
loop-free-alternate命令用来使能OSPF IP FRR功能,并生成无环备份路由。 undo loop-free-alternate命令用来取消OSPF IP FRR功能。 缺省情况下,不使能OSPF IP FRR功能。 命令格式 loop-free-alternate undo loop-free-alternate 参数说明 无 视图 OSPF FRR视图 ...
loop-free-alternate 命令功能 loop-free-alternate命令用来使能IS-I S Auto FRR利用LFA(Loop-free Alternate)算法计算无环备份路由。 undo loop-free-alternate命令用来去使能IS-IS Auto FRR利用LFA(Loop-free Alternate)算法计算无环备份路由。 缺省情况下,未使能IS-IS Auto FRR利用LFA(Loop-free Alternate)算法计...
Loop-Free Alternate path with OSPFv2 当链路发生故障后,可以依靠路由协议重新收敛,计算出新的路径转发数据报文,这种方式通常会花费很长的时间,在几百毫秒以上,已经满足不了网络延时要求特别高的应用。基于RFC5286的LFA FRR(Loop-Free Alternate Fast Reroute)技术,借助链路状态协议的特性,在链路故障前就计算出备份路...
Distance_opt(N, D) < Distance_opt(N, S) + Distance_opt(S, D)发现3<8+9不等式成立,选择N为loop-free alternate,也就是备份下一跳。 Distance_opt(N, D):备份下一跳到目的节点的cost值 Distance_opt(N, S):备份节点到始发节点的cost值 ...
In this document, we analyze the applicability of the Loop-Free Alternate (LFA) method of providing IP fast reroute in both the core and access parts of Service Provider networks. We consider both the link and node failure cases, and provide guidance on the applicability of LFAs to different...
The Loop-Free Alternates (LFA) specification is a simple IP Fast ReRoute (IP... M Nagy,J Tapolcai,G Rétvári - 《Telecommunication Systems》 被引量: 5发表: 2014年 FAST REROUTE USING LOOP FREE ALTERNATE NEXT HOPS FOR MULTIPOINT LABEL SWITCHED PATHS The techniques of this disclosure provide...
Verify the routing table of R1 for the prefix 5.5.5.0/24. According to the configured cost, R1 is using R2 12.0.0.2 as the next hop. R1#sh ip route 5.5.5.0 Routing entry for 5.5.5.0/24 Known via "ospf 1", distance 110, metric 13, type inter area ...
RESEARCHPAPERNewSelectionCriterionof论文集锦Loop-·freeAlternateInterfaceforIPFastReroutingLiuJinhua。.WangYahong。DuShuai‘lnsti..