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Default value of network interface - txqueuelen & net_dev_max_backlog

Default value of network interface - txqueuelen & net_dev_max_backlog

Hi,

Any one help me to identify default values of below parameters of network inetrfaces.

We have superdome server ia64 SD32 and hpux 11.23.

txqueuelen -- need default value in hpux 11.23 and need command to check default value

net_dev_max_backlog -- need default value in hpux 11.23 and need command to check default value

Kindly also help us to find out command to identify above parameters ?

kindly also help us to replace above default parameters ?

Your help in this regard is highly appreciated.

Thanks & Kind Regards,

Sajjad Ahmed
4 REPLIES
Bill Hassell
Honored Contributor

Re: Default value of network interface - txqueuelen & net_dev_max_backlog

> txqueuelen
> net_dev_max_backlog

These are Linux tunables, not found in HP-UX. All the network tunables for HP-UX can shown with ndd:

ndd -?


Bill Hassell, sysadmin
Duncan Edmonstone
Honored Contributor

Re: Default value of network interface - txqueuelen & net_dev_max_backlog

Tuning of the HP-UX IP network stack is mostly done via the ndd command - take a look at this whotepaper:

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c02020743/c02020743.pdf

HTH

Duncan

HTH

Duncan

Re: Default value of network interface - txqueuelen & net_dev_max_backlog

Hi Bill,

Thanks for your inofrmation provided.

Kindly inform us what is the equivalent parameters in hpux of these two parameters which would be tunable?

Thanks & kind Regards,

Sajjad Ahmed
Dennis Handly
Acclaimed Contributor

Re: Default value of network interface - txqueuelen & net_dev_max_backlog

From Duncan's link, it appears that net_dev_max_backlog may be tcp_conn_request_max.
txqueuelen may be tcp_xmit_hiwater_max?