topic Re: Console Access in Communications and Wireless

Console Access

Ayman Altounji — Fri, 01 Dec 2000 00:00:00 GMT

I give up! I have been trying for a week to use a null modem cable to connect to a 5226A switch that I have. I need to assign it an IP address so that I can use the CNMS to manage the beast while it is on the lan.

So far I have tried 2 different cables, and 4 different computers. Nothing seems to work. I was able to get this to work once before. Then, while trying to diagnose an extremely sluggish performance issue, I removed the IP thinking that it would be rather easy to assign another one once I was able to solve the problem. Well, I never solved the problem, and I want to use this switch to create a series of VLANs for an Internet project I have recently started.

I have thoroughly read the doc on this switch, and I have tried to use the oldest and newest hyperterminal application that I can get my hands on. The settings have been 9600,8,N,1,None per the documentation. It also says to type vt100 when the terminal opens, and I would then be able to get to the login screen the then access the setup. I have tried every possible combination trying to get this to work and it will not.

I have opened the unit (the warrenty expired a long time ago, so what the hey....) and there is an SW1 switch and a single 3 post jumper in there.

Is there some way that I can use these to revert back to the default configuration? something like an NVRAM clear, or the like?

I would really love to know.
Thanks,
Todd Hayward MCSE ASE

Re: Console Access

Ayman Altounji — Mon, 18 Dec 2000 00:00:00 GMT

Is this switch coming up fully (i.e. scanning ports) or are the LEDS stuck on a port or flashing?

Are you not using BOOTP on this network (when no IP is assigned, the switch should ask for one)?

Re: Console Access

Ayman Altounji — Sat, 27 Jan 2001 00:00:00 GMT

Yes, the switch seems to initialize correctly. there is nothing that I can do to ping an address it might have taken from dhcp. I tried to give it an IP by associating a number in my local arp cache, then telnet to it, but that failed too. I simply cannot access the console anymore. Not over the LAN, not from a serial or null-modem to the DB9 (rs-232) in the back of the unit.

Anything else I can try before I toss the beast into the trash?

Todd Hayward, MCSE Compaq ASE

Re: Console Access

Ayman Altounji — Sun, 11 Feb 2001 00:00:00 GMT

I solved the problem. I bought a Cabletron switch with FDDI backbone A B connectors. It does what I want it to do.

Thanks anyway,
Todd MCSE, ASE