Thanks!

One more quick question...  I see there is a "enable_ip_defrag" option for the 
pf_ring module.  Is it better for performance to enable it on the pf_ring 
driver (assuming I'm running multiple Snort instances on top of DNA/Libzero)?

Thx.

Craig

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Luca Deri
Sent: Saturday, December 08, 2012 12:12 AM
To: [email protected]
Subject: Re: [Ntop-misc] ethtool settings

Craig
I suggest to keep

>   ethtool -K $1 tso off &>/dev/null
>   ethtool -K $1 gro off &>/dev/null
>   ethtool -K $1 lro off &>/dev/null     #may not be supported
>   ethtool -K $1 gso off &>/dev/null

the others I don't think are necessary

Regards Luca

On Dec 7, 2012, at 11:33 PM, Craig Merchant <[email protected]> wrote:

> We have a Snort sensor that is running on a 10g Silicom card using 
> DNA/Libzero.  I see in the snortd init script it makes a number of changes to 
> the NIC using ethtool.  Are these the settings that I should be using for 
> this scenario?
>  
>   ethtool -C $1 rx-usecs 1000 &>/dev/null
>   ethtool -K $1 tso off &>/dev/null
>   ethtool -K $1 gro off &>/dev/null
>   ethtool -K $1 lro off &>/dev/null     #may not be supported
>   ethtool -K $1 gso off &>/dev/null
>   ethtool -K $1 rx off   &>/dev/null
>   ethtool -K $1 tx off   &>/dev/null
>  ethtool -G $1 tx 32768 &>/dev/null
>   ethtool -G $1 rx 32768 &>/dev/null
>   ethtool -K $1 sg off  &>/dev/null
>  
> Thx.
>  
> Craig
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> Ntop-misc mailing list
> [email protected]
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