I have pair of ACEs witch are arranged on the different locations.
This ACEs work in active/failover mode throught heartbeat VLAN throught OTV.
ft interface vlan 989 ip address 10.46.201.33 255.255.255.252 peer ip address 10.46.201.34 255.255.255.252 no shutdown
ft peer 1 heartbeat interval 1000 heartbeat count 10 ft-interface vlan 989 ft group 1 peer 1 priority 150 associate-context Admin inservice
There are more than one connections between location, and i want to use them for redundancy too. So if vlan 989 will fail, active ACE must be still active because of connectivity of throught vlan (for example ft interface vlan 990).
The feature is called "Query Interface". You can configure it and even if ft vlan is down, standby will ping this interface (query) vlan and if this is UP, standby will not assume the role of ACTIVE.
Configuring a Query Interface
Configure a query interface to allow the standby member to determine whether the active member is down or if there is a connectivity problem with the FT VLAN. A query interface helps prevent two redundant contexts from becoming active at the same time for the same FT group. Before triggering a switchover, the ACE pings the active member to make sure that it is down. Configuring a query interface allows you to assess the health of the active member, but it increases switchover time.
To configure a query interface, use the query-interface command in FT peer configuration mode. The syntax of this command is:
query-interface vlan vlan_id
The vlan_id argument specifies the identifier of an existing VLAN. Enter an integer from 2 to 4094.
For example, to configure a query interface, enter:
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