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Subject: Re: increasing 'requests for jumbo clusters denied'
From: Ihsan Junaidi Ibrahim <ihsan@grep.my>
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Date: Mon, 11 Mar 2013 17:59:54 +0800
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To: Andre Oppermann <andre@freebsd.org>
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On Mar 11, 2013, at 4:18 PM, Andre Oppermann <andre@freebsd.org> wrote:

> On 11.03.2013 08:52, Ihsan Junaidi Ibrahim wrote:
>> Hi,
>>=20
>> I'm on 9.0-RELEASE-p3 and have had a number of instances where my =
igb0 network connectivity locked up under heavy load.
>=20
> This problem is also known on CURRENT and we are under active =
investigation
> on how to solve it properly.
>=20
>> 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.
>=20
> 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.=