The minimum interval, in milliseconds, between BFD control packets
received from the peer router. The actual value is negotiated between
the two routers and is equal to the greater of this value and the
transmit interval of the other router.
The minimum interval, in milliseconds, between BFD control packets
transmitted to the peer router. The actual value is negotiated between
the two routers and is equal to the greater of this value and the
corresponding receive interval of the other router.