The invalidate interval defines the number of update intervals before a route is marked as invalid (unavailable) when it stops being propagated by the router that originally reported it.
If the device learns of an equivalent or better route from another router within this time period, then this will be used instead.
SNMP ID: 2.8.8.6.3
Telnet path: /Setup/IP-Router/RIP/Parameter
Possible values:
- 0 to 99 as multiples of the update interval
Default: 6