[OmniOS-discuss] Configuring Jumbo frames

[Doug Hughes]

All 1gig interfaces are auto-mdix these days, which means they will
auto-negotiate and no special crossover cable is needed for host-to-host.

You can use ipadm to set the mtu like so:

ipadm set-ifprop -p mtu=9000 -m ipv4 bnx0

If the mtu updated in the driver.conf file is needed, you'll need to do
that first (I cannot confirm nor deny whether that is needed)


On Mon, Sep 21, 2015 at 4:11 PM, <steve at linuxsuite.org> wrote:

>
>   Howdy!
>
>            I have several bnx interfaces, bnx0 bnx1 bnx2 bnx3. I want to
> directly connect bnx2 and bnx3 to another machine (ie. no
> switch ), and configure jumbo frames on
> these interfaces only. Is this possible and what do I need to do?
>
>     In bnx.conf I found this line
>
>
> ############################################################################
> # mtu : Configures the hardware MTU size.  The valid range for this
> #       parameter is 60 to 9000.  The default value is 1500.
> #
>
> #mtu=1500,1500,1500,1500,1500,1500,1500,1500,1500,1500,1500,1500,1500,1500,1500,1500;
>
>      Should I put something like
>
> mtu=1500,9000;
>
>       in bnx.conf and can I control the mtu on the particular interface
> with ifconfig and hostname.bnx files??
>
>          thanx - steve
>
>
>
>
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>
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