Configuring Association Between Interface Backup In Active/Standby Mode And Routing - Huawei AR530 Series Configuration Manual

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Reliability
2.
3.
4.
Checking the Configuration
After the configuration is complete, run the display standby state command to check the status
of the BFD session and the backup interface.
2.6.2.3 Configuring Association Between Interface Backup in Active/Standby
Mode and Routing
Background
As shown in
Interface1. To prevent service interruption due to the link fault, a low-speed link is leased as the
backup link. Association between interface backup and routing is configured on the backup
interface of RouterA to implement route detection on the primary link and service switchover.
The interface backup module monitors the routing entry of the uplink to the Internet. If the
routing entry is deleted or becomes inactive, the interface backup module starts the backup
interface. When the routing entry is restored, the interface backup module blocks the backup
interface and starts the primary interface.
Issue 01 (2014-11-30)
The system view is displayed.
(Optional) Run:
ip route-static ip-address { mask | mask-length } { nexthop-address | interface-
type interface-number [ nexthop-address ] } [ preference preference | tag
*
tag ] track bfd-session cfg-name [ description text ]
Association between the IPv4 static route of the primary link and a BFD session is
configured or route priorities of the primary and backup links are set.
NOTE
l If the primary and backup links use dynamic routes, skip 2.
l If the primary and backup links use static routes, perform
BFD and static routes or set the route of the backup link to have a higher priority than the route
of the primary link.
Run:
interface interface-type interface-number
The view of the backup interface is displayed.
Run:
standby track bfd-session session-name session-name
Association between interface backup and BFD is configured.
NOTE
A backup interface can associate with only one BFD session, while a BFD session can associate with
multiple backup interfaces.
Figure 2-10, RouterA communicates with RouterB through the primary interface
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2 Interface Backup Configuration
2 to configure association between
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