Track

Track is a great feature in Comware - I recommend you read through the High Availability Guide to get a good technical understanding before following this quick solution guide.

HP Track basically a detection module in the switch that returns positive or negative dependent on interface status, link status, network reachability or network performance. I used it recently with BFD to track the status of a remote IP address, and used static routing with preferences to change the routing table if it detected a destination was unreachable.

I wanted to use OSPF, but unfortunately, there were some firewalls in the way which I had no control over..... the backup link was ADSL

I lab'd all of this in Simware to prove the concept first.

SITE 1

BFD Config

bfd echo-source-ip 172.16.0.1

Track Config

track 1 bfd echo interface Vlan-interface 172 remote ip 172.16.0.2 local ip 172.16.0.1

Routing Config

ip route-static 192.168.10.0 24 172.16.0.2 track 1

ip route-static 192.168.10.0 24 10.0.10.254 preference 65

SITE 2

BFD Config

bfd echo-source-ip 172.16.0.2

Track Config

track 1 bfd echo interface Vlan-interface 172 remote ip 172.16.0.1 local ip 172.16.0.2

Routing Config

ip route-static 10.0.10.0 24 172.16.0.1 track 1

ip route-static 10.0.10.0 24 192.168.10.254 preference 65

Points to note - the track interface is on the main route, and the static route without track requires a higher preference than 60 (the default preference of a static route)