[c-nsp] Backup radius server doesn't work.

[Asbjorn Hojmark - Lists]

> aaa group server radius rad_eap			<----- primary
>   server 192.168.232.254 auth-port 1645 acct-port 1646
>
> aaa group server radius rad_eap_local		<------local
>   server 192.168.232.3 auth-port 1812 acct-port 1813

You have two groups with one server each. I think you meant to
do one group with two servers? If you do that, you can also use
the dead timer mentioned by Oli.

-A