Help needed with expect...(If telnet fails)

Hello
I'm working using expect to automate telnet commands...i want to check if telnet fails and in this case...certain message should appear or certain word should be out in a file).

Thses are the messages that apeear if telnet fails:

Trying 172.16.3.115...
telnet: Unable to connect to remote host: No route to host

Any suggestions??

edit by bakunin: my suggestion is to leave out "urgent" from the thread titles, as zaxxon already told you (see here). We are volunteers, neither the help desk nor your serfs. If you need someone knowledgeable to do the work for you then, by all means, hire someone. To get an answer from us you should reconsider your attitude.