Monitoring IP ISDN status on main routers

Question

Dear all
I would need to test the ISDN (backup) connection of peripheral routers (Cisco) to their respective main routers on a regular basis. At present this is done manually. That is the operator gets on the peripheral router through its loopback IP and then pings the ISDN IP of the main router. Here are data of a real company as an example:
Society: Zurigo
Location: Foggia
Router name: AITFG00EZA
IP loopback: 172.23.239.164
IP bri: 172.23.247.100
IP ISDN of main router: 172.23.247.65
So once the operator gets on the router AITFG00EZA, he pings 172.23.247.65 thereby verifying the good functioning of the whole backup connection.
I heard there's a UNIX script that could deal with that. But I also heard of network capacities of JAVA. I would imagine a java program that goes like this:
1. Telnet peripheral router with user/pwd strings
2. Ping main router specifying packet size and Time To Live
3. Print results indicating connection as OK or NOT OK
20 Duke Dollars for the solution. I would be grateful for any help/suggestions/comments.
Take care.

Answer 1

Do it with the Unix script. I'd imagine that some Perl programmer could probably do this with a single source code line (but you'd never be able to change or debug it! :^) ).
You could do this with Java, but you'd have to implement the telnet (trivial, but still some coding) and the ping (relatively trivial, but still some coding).
Unless you are just dying to figure out Java networking, go the easy route and use a scripted language that is designed for this type of thing.
- K