Slowness sending from StoreSCU.exe to a PACS

[wollet88]

Hi,

we noticed a strange slowness sending from StoreSCU.exe to a PACS.
After some tests we discovered this behavior depended from MAX PDU SIZE set on the PACS (it was 512KB).
In addition the transfer rate from modality managing big PDU SIZE (512KB) to the same PACS was very fast.

By reducing PACS PDU SIZE from 512KB to 64KB the StoreSCU starts sending at normal speed to the PACS.

Have you ever heard about this problem?
Could you please tell me something about this strange behavior?
Is it an Offis bug?

Thank you and best regards,
Wollet

[Michael Onken]

Hi,

The PDU size option tells the server the maximum PDU size the server is permitted to send (to storescu). I am not sure I understand your settings under this assumption. What is exactly configured on the PACS, (usually) the PDU size the PACS can receive? You can also provide debug output (-d) of storescu's association negotiation which includes the PDU size settings that are actually send by both partners.

Best,
Michael