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Configuration Guide - Reliability

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, EFM Configuration, and CFM Configuration.
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BFD for Static Routes

BFD for Static Routes

Unlike dynamic routing protocols, static routes do not have a dedicated fault detection mechanism. When a fault occurs on the network, static routes cannot detect the fault and network administrators must delete the corresponding static route. To assist the administrator, BFD for static routes can be introduced into the network to bind a static route to a BFD session. Then the BFD session can detect the status of the link where the static route resides.

After BFD for static routes is configured, each static route can be associated with a BFD session. When a BFD session bound to a static route detects a fault (for example, the link changes from Up to Down), BFD reports the fault to the routing management (RM) module. The RM then configures the route as inactive, indicating that the route is unavailable and is deleted from the IP routing table.

When a BFD session associated with a static route is successfully established or the link of the static route recovers (that is, the link changes from Down to Up), BFD reports the event to the RM and the RM configures the static route as active, indicating that the route is available and is added to the IP routing table.

Updated: 2019-04-03

Document ID: EDOC1100075366

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