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Second port on EX3 printer server- mibs,

snmp

There was an interesting bug in the HPNP printing system - it would use SNMP to check if the print server was ready, but it ONLY cecked port 1. So, if you wanted to print to port 2, and port 1 happened to be off line, it would not print.

That probably wasn't what was going on here though. The problem ( a message about ": The output ``port'', a FIFO, was closed before all output was written. " only happened on large jobs. That would more likely indicate a buffer issue and the logical suspect would be the print server or printer - as it didn't happen (apparently) on port 1, perhaps it was the specific printer signaling an error back to the print server, which in turn passed it back to the printing system.

From: jeffl@comix.santa-cruz.ca.us (Jeff Liebermann)
Newsgroups: comp.unix.sco.misc
Subject: Re: Printer Problems / Mail Msgs/ HP Jetdirect (External)
Date: Wed, 07 Apr 1999 04:56:43 GMT
Message-ID: <370be0d7.5336399@news.ricochet.net> 
References: <debugF9IrnI.Az5@netcom.com>
<370d51a5.6588550@news.ricochet.net>
<debugF9s970.F2F@netcom.com> 

On Tue, 6 Apr 1999 19:37:48 GMT, debug@netcom.com (Dave Gresham) wrote:

>I already have a working printer on the first port, and this printer
>in indeed on the 2nd port. What is interesting is that print jobs are
>sucessfully going to this printer, its only that there are times when we 
>get these huge  email messages.

Ok, let me try to decode this cryptic description.
1. srlaser9 points to port 9101 or port #2 on the EX3 print server.
2. The error messages occur only sometimes with no obvious pattern.
3. The error messages ONLY occur with the printer on port #2.
4. The only email error messages appear from srlaser9.  All the other boxes
and ports apparently work normally and don't complain via email.

Is this correct?

>Maybe it is because of the printer being
>offline, and in the past year I have upgraded the firmware on the
>EXPlus 3 in the past year when there was even nastier bugs in it.

If you flashed it within the last year, it's probably current.

If you have SNMP running, invoke:
        getmany printer_ip public iso
and you will buried in MIB variables and values.  The firmware version
should be on the top line under sysDescr.0.  I forgot the exact OID number
or I would have supplied a "getone" command that only returns the desired
variable.  For instructions on how to make SNMP work on OSR5, see:
  http://www.cruzio.com/~jeffl/sco/snmp_install.txt
Try it.  You might like it.

>>How do I configure the HP JetDirect EX Plus3 Print Server to use HPNP?
>>  http://aplawrence.com/cgi-bin/ta.pl?arg=105327
>Already have this.

Good.  Now check that the values imbedded in the spooler scripts match
those in the Tech Article.  It's rather odd that only port #2 *SEEMS* to
having problems.  My guess is that either the port is fried on the EX3 in
question, of there is a typo error in the script where the 9101 port number
is defined.  Watch out for imbeded backspaces and invisible control
characters.  Since you apparently have other EX3 print servers available,
swapping boxes and reconfiguring the IP's will help point the finger to
either the box or the Unix configuration.

Remember: Assumption is the mother of all screwups.


-- 
Jeff Liebermann  150 Felker St #D  Santa Cruz CA 95060
(831)421-6491 pgr (831)426-1240 fax (831)336-2558 home
http://www.cruzio.com/~jeffl   WB6SSY
jeffl@comix.santa-cruz.ca.us   jeffl@cruzio.com

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