Avaya Media Gateway G250, Руководство администратора, Страница: 329 / 840

Object tracking
Issue 5 June 2008 329
2. The second step is to configure several object trackers. In this case, object tracker 1 tracks
the state of RTR 5, and object tracker 2 tracks the state of RTR 6. For example:
3. The third step is to configure a track list object tracker which tracks the states of object
trackers 1 and 2, and calculates its own state using a boolean or threshold calculation.
In this case, a Boolean OR argument is used. This means that the track list is up if either
object tracker 1 or object tracker 2 is up. For example:
Typical object tracking applications
●
Trigger the failover mechanism for VPN. See Typical application – VPN failover using
object tracking on page 330.
●
Trigger the failover mechanism for interfaces. See Typical application – backup for the
WAN FastEthernet interface on page 330, and Typical application – interface backup via
policy-based routing on page 333.
●
Track the state of a route: a static route, a PBR next hop, or the DHCP client default route.
For an example of how to track the DHCP client default route, see
Typical application –
tracking the DHCP client default route on page 334.
G250-001(config)# track 1 rtr 5
G250-001(config-track rtr 1)# description "track rtr-5"
Done!
G250-001(config-track rtr 1)# exit
G250-001(config)# track 2 rtr 6
G250-001(config-track rtr 2)# description "track rtr-6"
Done!
G250-001(config-track rtr 2)# exit
G350-001(config)# track 10 list boolean or
G350-001(config-track list 10)# description "track list rtr-5 and rtr-6"
Done!
G350-001(config-track list 10)# object 1
Done!
G350-001(config-track list 10)# object 2
Done!
G350-001(config-track list 10)# exit