HPE Community
Operating System - HP-UX
1833777 Members
2129 Online
110063 Solutions
New Discussion

Nagling and Windows clients

 
Kevin Liquori
Occasional Contributor

‎09-18-2001 06:36 AM

‎09-18-2001 06:36 AM

Nagling and Windows clients

One of our developers just gave me a white paper from our database vendor concerning performance with their Windows client(which uses telnet and ftp). They've concluded that performance is best on HP-UX 11.0 as opposed to 10.x because of issues with nagling. They claim that under 10.x HP-UX drops too many packets when dealing with nagling. They also claim that upgrading to 11.0 will fix this because HP has re-written the TCP/IP stack in 11.0.

Is there really a difference in TCP/IP between 11.0 and 10.20? From what I've seen in the Knowleedge Base it appears that this is more of a Windows issue not a UNIX issue.

TIA . . . Kevin
0 Kudos
Reply
1 REPLY 1
Chris Calabrese
Valued Contributor

‎09-18-2001 08:06 AM

‎09-18-2001 08:06 AM

Re: Nagling and Windows clients

The 11.0 TCP/IP stack was indeed rewritten from 10.x (along with lots of other stuff - 11.0 is almost a complete rewrite at the kernel level compared to 10.20).

And given that Nagling is specifically aimed at telnet traffic, it's entirely believable that this would make a big difference.

See http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci754347,00.html for more information on Nagling.
Brainbench MVP for Unix Administration and Internet Security, SANS Review Editor, and Center for Internet Security HP-UX Benchmark project leader
0 Kudos
Reply
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.