[hpsdr] Command delays with Hermes on dedicated PC ethernet port

[Ron McCurdy]

Hi John,

Just unplug  the home network from the new card and plug it back into the 
old card.  Then, you'll have the new card to speed up the processing between 
your computer and rig.

Ron
P.S.  I've recently done the very same thing with my Dell PC.  The 1GB 
ethernet card is connected to the Metis card of the transceiver.
----- Original Message ----- 
From: "John Ackermann N8UR" <jra at febo.com>
To: <hpsdr at lists.openhpsdr.org>
Sent: Sunday, September 21, 2014 1:38 PM
Subject: [hpsdr] Command delays with Hermes on dedicated PC ethernet port


> ***** High Performance Software Defined Radio Discussion List *****
>
> I put another NIC in my PowerSDR computer so that it could talk directly
> to Hermes without going through the house network.
>
> The original NIC (on-board RealTek) is hooked to Hermes, while the new
> Intel PRO/1000PT is connected to the house network.  I'm using PowerSDR
> 3.2.19 and Hermes firmware v2.9 on a Windows 7 machine.
>
> I am using APIPA address assignment, and have the expected 10-20 second
> startup delay.  Once the address negotiation is finished, data flows
> smoothly with no issues.
>
> However, any command that requires communication with the radio, such as
> changing bands or going in/out of CW mode, has a long delay before
> successful completion -- long enough for the Windows "waiting" icon to
> show up for a few seconds.  Commands performed entirely within PowerSDR
> are not affected, only those that need to communicate with the radio.
>
> It is almost as if the APIPA negotiation is happening each time PowerSDR
> needs to communicate with the radio.
>
> When I have have Hermes sitting on the house network with DHCP address
> assignment, there are no delays, so this problem is related to the
> dedicated connection.  And the data packets flow smoothly, so the basic
> connectivity between the radio and the PC is there.
>
> I wonder if there is a Windows networking setting that I should be
> tweaking to prevent this delay.  Any ideas?
>
> Thanks,
>
> John
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