Jump to content
The simFlight Network Forums

UDP problems?


Recommended Posts

Hi Pete,

A few weeks ago I switched from TCP to UDP in my two PC flight simulator.

At my non-FS9 PC I run the following programs: ASV6, Squawkbox and Fuel Loader.

After switching to UDP ASV6 and Fuel Loader still worked fine but Squawkbox sometimes could not detect FSUIPC, after trying again it most of the times worked ok.

However, yesterday I replaced that pc by a much fatser machine (say 5 times faster). What happened:

ASV6 keeps working fine but Squawkbox and Fuel Loader can no longer detect FSUIPC...

I switched back to TCP and all worked fine...

It looks as if there are some timing issues. Are there any parameters I may have missed setting?

Your advise would be most welcome.

Regards,

Nico Kaan

Link to comment
Share on other sites

I switched back to TCP and all worked fine...

It looks as if there are some timing issues. Are there any parameters I may have missed setting?

No. Don't fiddle with any WideFS parameters, they've all been optimised over a long time. I only still have the parameters for testing purposes.

Are there two or more possible routes betweenn any of your machines? Is it daisy-chained, like a firewire link, or a star network with a hub or switch? If its a hub I'd strongly recommend changing to a switch.

Have you looked at any of the WideFS logs to see if there are errors reported?

UDP is not guaranteed nor checked. It's super for distributing data which is changing all the time, such as keeping gauges running (eg on Project Magenta's PFD or ND), as if some frames are missing now and then it doesn't matter so much because the next will be along soon.

Even so, having said that, I have it working fine on my 8 PC Network but *only* after changing from a firewire daisy chain (400 mbps) to a standard 100 mbps switched star network.

If it is too much pain using UDP and finding what the problem is, stick to TCP or even try SPX. Both of those are fully checked and "guaranteed". It is for these reasons I always avoided moving to UDP, even though FS multiplayer does use it. I only added it when I found out how easy it was to implement, so thought it worth a try! ;-)

Regards,

Pete

Link to comment
Share on other sites

Are there two or more possible routes betweenn any of your machines?

No, there's just one hub in between.

Have you looked at any of the WideFS logs to see if there are errors reported?

Yes, time out errors ...

Well, but I'll buy your advice and stay with TCP.

Thanks,

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. Guidelines Privacy Policy We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.