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Configuration Guide - IP Unicast Routing

CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, and PBR.

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BFD for Static Routes

BFD for Static Routes

Unlike dynamic routes, static routes do not have a dedicated fault detection mechanism. If a link fault occurs on the network, the administrator needs to rectify it. Bidirectional Forwarding Detection (BFD) for static routes can be used to bind a static route to a BFD session so that the BFD session can detect the status of the link associated with the static route. The detailed procedure is as follows:

  • If the BFD session bound to a static route detects a link fault, BFD reports the fault to the system. The system then sets the route to inactive, and this route is no longer available in the IP routing table.

  • If the BFD session bound to a static route detects that the faulty link has been re-established, BFD reports a message to the system. The system then sets the route to active, and this route becomes available in the IP routing table again.

For more details about BFD, see "BFD Configuration - Principles" in Configuration Guide - Reliability.

Updated: 2019-03-21

Document ID: EDOC1000166601

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