large file upload and Big-IP

Are you trying to ensure a large file upload completes or are you trying to limit the file upload size?

 

 

For the former, you could try testing to see if it works first. There aren't any LTM limits that I can think of that would prevent a client from uploading a large file. If you find that the TCP connection is left idle for a long time during the file upload, you could extend the TCP idle timeout.

 

 

If you're trying to limit the file size you could potentially use an iRule in 9.x+ to check the Content-Length header.

 

 

Aaron

 

 

Thank you for the response. I should have given a bit more clarification. We are having issues with large file uploads, they are timing out. I will try increasing the TCP idle timeout and see if it helps.

 

 

Thanks!

If it's a TCP VIP referencing a TCP profile you could create a custom TCP profile with the idle timeout extended higher than the default of 300 seconds. However, I'd be a little surprised if the client was leaving the connection idle for that long.

 

 

If the idle timeout change doesn't fix the problem, it might help to capture a tcpdump of the client and server side traffic to see what is actually happening during a failure. SOL411 has details on capturing/analyzing tcpdumps.

 

 

Aaron

It also may help to know what protocol we're talking about. HTTP? FTP? Other? My guess is that we're talking FTP and you're seeing control channel timeouts due to idle control activity while a large transfer is taking place on the data channel.

 

 

-Matt