Q:
Topic thread:
Printer Systems (PRINT)
PSF/AIX
PRINT XPSF6000
Customer has a Network Printer 17 attached via IP to an AIX PSF system
via a remote link. He is concerned that this may generate too much
traffic on the link and has asked if the printing flow can be controlled
to limit the rate of printing. Please advise if any type of control is
possible, and how to do it.
A:
I need a bit more information in order to work on this one.
1) Is PSF/AIX driving the NP17 in IPDS mode or in PCL mode?
a) If in PCL mode, what level of AIX?
2) More out of curiosity, what kind of link and what speed are we
talking about?
3) What is the input data stream? (I'm trying to get an idea of how
complex it is, how many bytes PSF might be sending out.)
Please reopen the item with this information.
Q:
1) Is PSF/AIX driving the NP17 in IPDS mode or in PCL mode?
a) If in PCL mode, what level of AIX?
It is printing in IPDS mode. The level of AIX is 4.2
2) More out of curiosity, what kind of link and what speed are we
talking about?
The link is a 2MBit link over Wellfleet router.
3) What is the input data stream? (I'm trying to get an idea of how
complex it is, how many bytes PSF might be sending out.)
The data stream has been traced and looks like about 40k of data.
The Network manager wants to be sure that the link cannot get
flooded with volume of traffic at peaks.
A:
There are no settings in PSF/AIX to restrict the flow of data to the
printer. However, I talked with a number of people in development and
performance, and for test data you should not have a data rate that
would take a significant part of your customer's network. For a text
page, I'd expect to see something less than 100Kbits/second for the
data rate. That's only about 5% of the 2Mbits/second link you
mentioned. Even if there's some image in there, it would still be about
that. If the pages are full image, the data rates will increase
because of the increased number of bytes per page, but I'm guessing
from the 40k you mentioned that there's little or no image in the
customer's data.
In short, based on the information you provided, the analysts I talked
to did not foresee a problem. I hope this helps.
S e a r c h - k e y w o r d s:
psf/6000 psf/aix psf pacing network traffic performance data rate
pace paced
WWQA: ITEM: RTA000148590 ITEM: RTA000148590
Dated: 11/1998 Category: XPSF6000
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