forwarding multiple studies status fails

seaharrior · Post by **seaharrior** » Fri Mar 23, 2012 9:27 pm

hello

when i select multiple studies, like 4 to 10 and forward the studies fail howerver, if i forward single study at a time then it goes through please help

Post by **pacsone** » Sun Mar 25, 2012 3:08 am

Did you check the PacsOne Server logs and see what error was logged about that forwarding job?

seaharrior · Post by **seaharrior** » Tue Apr 10, 2012 3:38 pm

I have figured out he problem., would still like to get your input/help. The issue is the upload bandwidth is low. We have ATT U Verse and the upload is 800K and download is 10MB. Unfortunately in the area there is no provider that offers upload speed over 1MB.

when a large study with multiple images, even like 3 images is forwarded, the internet kind of freezes and the website is unreachable till the transfer is done. Everyone inside office looses internet connection till the study is transferred to external AE.

Is there a way to throttle upload (forwarding) speed in Pacsone? for example like bit torrent clients you can set upload speed 10kb, or less for the whole transfer. Please let me know what options I have to forward the study and not knock everyone off internet same time.,

Post by **pacsone** » Wed Apr 11, 2012 3:50 pm

The Dicom protocol is designed for local area networks (LAN) instead of the wide area networks (WAN) like the one you have, but in any case the 800 Kb upload bandwidth should still be sufficient for a single outbound connection. So you can try changing the Maximum Outbound Connections setting from the default value of 10 to 1 for all AEs configured in the Dicom AE page of PacsOne Server, and see if that helps to relieve the bandwidth issue.

Another thing you can try is to configure your router to limit the amount of outbound bandwidth to be half of your limit, e.g., 400 Kb.

Keep in mind that all of these are really NOT solving the problem, just merely stopping the problem (network bandwidth bottleneck) from presenting itself.

seaharrior · Post by **seaharrior** » Wed Apr 11, 2012 4:37 pm

thanks, I have changed the connections to 1 instead of 10. Lets see what happens. We don't have a router that actually limits the outbound traffic or upload speed., any recommendations are welcome.

Since we send our studies to external radiology group for reading the studies, we have to route the studies from our server to the radiologist group so we are limited on that option there.

Post by **pacsone** » Wed Apr 11, 2012 8:16 pm

Any decent corporate router should let you configure rules, e.g., limit on maximum bandwidth, etc, for both inbound and outbound traffic.

On the other hand, you may want to increase the bandwidth limit as well if you find that limit is constantly being exceeded, i.e., your imaging volume is outgrowing your network bandwidth.