topic Re: incomplete headers in Operating System - HP-UX

incomplete headers

Marcos Tinoco García — Thu, 12 Oct 2006 16:59:28 GMT

Hi!
I have a server with UNIX hpux 11.11 version 1 and I run a command "netstat -p udp" the output is:

2064 incomplete headers
175 bad checksums
1904 socket overflows

what does mean it? and How I can erase it?

Thank's

Re: incomplete headers

Ivan Ferreira — Thu, 12 Oct 2006 17:19:56 GMT

You probably can clear the statistics with:

lanadmin
lan
clear

UDP packets can be damaged in the transfer, so checksums will not match. For "socket overflows" see:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=94276&admit=-682735245+1160691519079+28353475

Re: incomplete headers

rick jones — Fri, 13 Oct 2006 19:34:09 GMT

IIRC it means pretty much what it says - there were datagrams arriving which didn't have complete UDP headers. Given a UDP header is only 8 bytes in size it is rather a feat. I suspect that if you were to look at the IP stats you would see a bunch about IP fragmentation too.

You might want to look at your lanadmin statistics for your NIC(s) and see if there are any FCS errors or _late_ collisions being reported that might suggest a duplex mismatch or other problems with your physical network.