Poor network efficiency

Question

I'm supporting an app running on WLS 6.1 SP3. It's using the Apache SOAP toolkit.
I don't have access to the app or its source code, though I may be able to request
enhancements.
In network traces of the app, we're seeing excessive fragmentation of the response
HTTP headers sent by WLS. Specifically, each discrete piece of an HTTP header
is being sent in its own network packet. For example, the date header is returned
as follows:
"Date" - first packet
": " - second packet
"{date value}" - third packet
"\x0d\x0a" - fourth packet
This obviously results in significantly more network traffic than is optimal.
It also places extra CPU load on server and client since the network stack is
doing more work. Note that, from what I can determine, all the headers are ones
that are automatically sent by WLS, save "Content-Type" and "Content-Length".
I know there's a ServletResponse.setBufferSize method, but its docs seem to state
that it only applies to the content/body of the response, not the headers.
Does anyone have experience with this problem? Is there a WLS config setting to
alleviate the problem? Or will setBufferSize help w/ the headers also?
Many thanks,
Donnie

Answer 1

Try this
Adjust the MTU and MSS size in concentrator and client.
Try these link for more info:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2284/products_configuration_guide_chapter09186a008015ce0e.html#1223423
http://www.cisco.com/en/US/products/hw/vpndevc/ps2286/products_user_guide_chapter09186a00803ef6c5.html