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Kirk,

I would only go so far as to say MY experience with PJL over wan
connections was not nearly as reliable as SNMP over the wan. Without
being able to say why, I always just chalk this up to SNMP being a more
robust network protocol. PJL writers would sometimes hang for no
obvious reasons, requiring operator intervention.

I wish I could remember more about the SNMP community string issue. It
was a show stopper here, due to a potential security exploit.

So far, IPP seems to be the best remaining option in terms of
reliability and capability (IMO).

-Eric DeLong

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Kirk Goins
Sent: Friday, March 18, 2011 10:15 AM
To: Midrange Systems Technical Discussion
Subject: Re: Comparing LPD, PJL, SNMP, and IPP

Charles,
Just curious... How is SNMP better than PJL? Just basically looking at
the
Designed function, PJL iwas specifically designed for communicating
printers
and SNMP was designed to monitor network devices. I really don't know
the
inner ( bits and bytes ) workings of either protocol.

I would have ranked them in this order...
IPDS - Best Function/Features
PJL - Works well when supported by printer
SNMP - I Can often get this to work when PJL doesn't
IPP - Haven't used this much
LPD/LPR - If all else fails



On Fri, Mar 18, 2011 at 4:46 AM, Charles Wilt
<charles.wilt@xxxxxxxxx>wrote:

http://wiki.midrange.com/index.php/Setting_up_a_printer

* A *LAN *IPDS device description
* A *LAN 3812 SNMP device description
* A *LAN 3812 IPP device description
* A *LAN 3812 PJL device description
* A Remote Output Queue (RMTOUTQ) (also known as LPD/[LPR]]

The list above as been reordered from the list shown in the IBM
document based upon order of preference. A *LAN *IPDS device is the
most preferred option for an IBM System i network printer; while a
Remote Output Queue is the least preferred. The relative preference of
SNMP, IPP, and PJL are subjective and based upon the SNMP vs IPP
thread in the comp.sys.ibm.as400.misc newsgroup.

HTH,
Charles

On Thu, Mar 17, 2011 at 10:37 PM, jmmckee <jmmckee@xxxxxxxxxxxxxx>
wrote:
How would the four protocols be ranked? I have seen that LPD is
probably
the least desirable, when multiple systems send data. But what about
the
other three?

John McKee
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