From: kym blair (kymblair@xxxxxxxxxxx)
Date: Thu Sep 13 2001 - 20:19:02 GMT-3
Ahmed,
(1) Do you get the same results when you plug into the Aux ports?
(2) From a connected router, can you get an IP address to telnet into from
"show cdp neighbor detail"?
(3) Can you break out of the boot sequence?
If none of these are helpful on any of the 3 routers, I'd think you have the
wrong cable, are plugged into the wrong COM1 port on your PC, or have the
HyperTerm settings wrong. Can you use this cable and HyperTerm on any other
routers successfully?
Kym
>From: Jay Hennigan <jay@west.net>
>Reply-To: Jay Hennigan <jay@west.net>
>To: Ahmed Mamoor <mamoor@ieee.org>
>CC: <ccielab@groupstudy.com>
>Subject: Re: nothing is on the console..
>Date: Thu, 13 Sep 2001 09:16:01 -0700 (PDT)
>
>On Thu, 13 Sep 2001, Ahmed Mamoor wrote:
>
> > I have 3 routers with same problem can anyone help....
> >
> >
> > Problem:
> > Not getting any type of data from my 2501 router's console or AUX port.
> >
> > observation:
> > 1- When I power up the router Its goes apparently normal through the
>booting
> > process and after 30 sec. Light the GREEN OK light on the back of the
> > router.
> > 2- When I attach WAN serial cable with my 2502 router with other one
>(2501 &
> > 2503) after some sec the data is been send through the WAN serial cable
>as
> > these routers are sending keep alive packets to each other.
> > 3- When I place a RS232 tester in between the router's console and the
> > computer serial port it gives all the signal except the Rx signal from
>the
> > router.
>
>This indicates a *possible* hardware failure in the router, but the same
>issue with three of them makes this unlikely.
>
>I would try the following:
>
>* With only the console port and the RS-232 tester connected (unplug from
> the PC), do you get any light on either the TXD or RXD indicator? And,
> when you power up the router and it goes through the boot sequence, does
> this light flicker? If so, it sounds like a rollover cable or hood
> problem.
>
>* Substitute a different rollover cable. You're aware that the rollover
> console cable is a flat ribbon cable, and is pinned differently than
> an ethernet jumper? They are usually light blue in color, although
> Cisco sometimes supplies green ones (with terminal servers) and black
> ones (for the AUX port). The color doesn't matter, they're all wired
> the same but different from an ethernet jumper. See:
>
>
>http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500/2509/ac
svrug/cables.htm#xtocid402311
>
>* Substitute a different hood. The pinning on yours may be wrong.
>
>* Verify that flow control is set to "none" in your terminal program.
>
>* Get an RJ-45 type (8-pin) jack. Wire pins 3 and 6 together. Plug
> your PC, hood, and rollover cable into this in place of the router.
> Type on the screen and see if your characters echo. Then unplug the
> jack and verify that they stop echoing. This tests your PC, hood,
> and cable.
>
>* If you have two 9-pin hoods and two computers, you should be able to
> connect them together using a rollover cable, run a terminal program
> on both, and what you type on one should display on the screen of the
> other.
>
> > 4- Console port is giving nothing but AUX port give a ASCII character
>when
> > power ups and nothing.
>
>
> > Solution Implemented and tested:
> > 1- I check the router for every BAUD rate but no help.
> > 2- I thought the routers power supply is not giving sufficient power to
> > router, I changed it with my other router's power supply but no help.
> > 3- I changed FLASH and DRAM but nothing happened.
> > 4- I changed the computers console cable with the original one and
>changed
> > computer too but no help.
> > 5- I reset the routes jumper found just aside with ROM, thinking that
>IOS is
> > corrupted but nothing happened.
> >
> > I am sure my router is not completely dead as it is giving packets
>through its
> > WAN interfaces when connected to other router. Any suggestion will be a
>great
> > help for me.
>
>It sounds like a low-level physical problem to me.
>
>--
>Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net
>NetLojix Communications, Inc. - http://www.netlojix.com/
>WestNet: Connecting you to the planet. 805 884-6323
>**Please read:http://www.groupstudy.com/list/posting.html
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