increasing 'requests for jumbo clusters denied'

[Ihsan Junaidi Ibrahim]

On Mar 11, 2013, at 4:18 PM, Andre Oppermann <andre at freebsd.org> wrote:

> On 11.03.2013 08:52, Ihsan Junaidi Ibrahim wrote:
>> Hi,
>> 
>> I'm on 9.0-RELEASE-p3 and have had a number of instances where my igb0 network connectivity locked up under heavy load.
> 
> This problem is also known on CURRENT and we are under active investigation
> on how to solve it properly.
> 
>> I've had another em1 device which I used for side-band access which does not have as much load as my primary igb0 device.
> 
> Jumbo mbufs are only used if you increase the MTU on your interface.
> As long as you stay on the standard ethernet MTU of 1500 no jumbo
> mbufs will be used.

I'm actually using 9k jumbo on igb0 since it's a requirement of my upstream customer. The server is functioning as some form of internal route/tunnel server.

The issue is manageable for now on my end and since this is being worked on, I assume I can let it rest for now.

Thank you.