Forum Discussion

Steven_Levchen1's avatar
Steven_Levchen1
Apr 26, 2016

Internal Website BIG-IP LTM Compatibility Issue

Hello F5 Community - I'm hoping to pick your big brains about troubleshooting an issue I'm having with the BIG-IP LTM. Forgive my ignorance, as I have not taken any of the F5 courses on the subject...
application delivery
BIG-IP
LTM
Theo_12742's avatar
Theo_12742
Icon for Cirrus rankCirrus
Apr 26, 2016

It has to do with the way files are chunked when downloaded, and most web-based applications don't really account for this in the standard manner.

Workaround: In the HTTP profile for that virtual server, change 

Response Chunking
to 
Rechunk
and try again.

  • Steven_Levchen1's avatar
    Steven_Levchen1
    Apr 26, 2016
    Thank you for the quick response, Theo! Unfortunately I'm still getting the same error message. Now I'm also getting a mixture of "page cannot be displayed" on some of the other links. If it makes a difference, the web page is built on top of a CMS - a Content Management System developed by a group called Passageways. I've asked them for assistance, but they claim not to provide load balancer support. Thus, I'm hoping to shoehorn the BIG-IP in there anyways just to see if I can. Any other areas I can look? Thanks! Steve
  • Theo_12742's avatar
    Theo_12742
    Icon for Cirrus rankCirrus
    Apr 27, 2016
    I think the next step is two-fold. 1) Set the logging level to debug and watch for any related messages to that VIP. The most common is a RFC2616 error, which is where the HTTP is non-standard and rejected by the F5. 2) Use a program like Fiddler or HttpWatch to monitor the client session and capture the headers regarding the link generated by the PDF and the call to the PDF itself--see if it's experiencing unexpected behavior (like calling the name of the server directly).