topic Re: tcp question in Operating System - HP-UX

tcp question

navin — Mon, 09 Mar 2009 20:09:49 GMT

how doi change tcp/ip parameter on hpux.11.23
server io.
thanks

Re: tcp question

James R. Ferguson — Mon, 09 Mar 2009 20:47:03 GMT

Hi:

Use 'ndd' :

http://www.docs.hp.com/en/B3921-60631/ndd.1M.html

Regards!

...JRF..,

Re: tcp question

Avinash20 — Tue, 10 Mar 2009 04:08:59 GMT

For example:

To modify ndd parameters
1. Use command
# ndd -set /dev/tcp tcp_time_wait_interval 60000
#ndd -set /dev/tcp keep_alive_interval 3600000 ===> Setting
#ndd -get /dev/tcp tcp_time_wait_interval
#ndd -get /dev/tcp keep_alive_interval ===> Confirm

2. Use file edit to have this chances permanent across reboots

# vi /etc/rc.config.d/nddconf
TRANSPORT_NAME[0]=tcp
NDD_NAME[0]=tcp_time_wait_interval
NDD_VALUE[0]=60000

TRANSPORT_NAME[1]=tcp
NDD_NAME[1]=keep_alive_interval
NDD_VALUE[1]=3600000

Re: tcp question

Avinash20 — Tue, 10 Mar 2009 04:11:34 GMT

SUPPORTED ndd tunable parameters on HP-UX:
>ndd -h supported

UNSUPPORTED :
>ndd -h unsupported

Also "I have assigned points to 472 of 1138 responses to my questions."

Please assign points to your thread.
This is a way of saying thanks to your answers and also to get better response.

Re: tcp question

Avinash20 — Tue, 10 Mar 2009 04:13:11 GMT

Thanks for Bill.
You could use the following script to get the ndd values.

for TUNE in $(ndd -h | awk '{print $1}'|grep -e upd_ -e ip_ -e raw_ -e arp_ -e tcp_ )
do
echo
echo "$(tput bold)$TUNE"
DEV=$(echo $TUNE | cut -f 1 -d_)
eval "ndd -get /dev/$DEV $TUNE"
done