[c-nsp] loss of mgmt vlan interface on 2950g help!

[Mike]

    I was doing some troubleshooting on my 2950g switch. The 'management 
interface', is vlan1, and had an ip address and so forth in it I could 
reach. Apparently, a stupid move was to go into config mode and type the 
following

interface vlan 300

    At that point, my telnet management session went away and the switch 
is no longer reachable via management any longer, although otherwise 
continues to function. I am sort of at a loss to understand what the 
problem is but would love to know so a) I don't do it again and b) to 
know if there's a way to recover from remote since it's (naturally!) in 
a very difficult to acccess location, and having management access again 
would be helpful.

Thanks.