[rabbitmq-discuss] MTU

[Gustavo Aquino]

We need to do a calc, we have high volume of messages, and my 213 bytes have
a oversize, Rabbit probably put header and etc in message.

We know how to configure MTU, just for it we need to know the message size,
undertand ? After this calc we will configure MTU in O.S, switchers and
routes, MTU is not only used in O.S. You can put your interface with 1500
MTU but if your switcher have 500 MTU it will put limits to you.

Regards.

On Sat, May 8, 2010 at 9:05 AM, David Wragg <david at rabbitmq.com> wrote:

> Hi Gustavo,
>
> Gustavo Aquino <aquino.gustavo at gmail.com> writes:
> > I want to know if I post a message with 213 Bytes whats your MTU? whats
> the
> > oversize ? And what MTU for high throughput ? if I change my network
> > interface to 2000 MTU Rabbit will follow it ?
>
> The MTU is decided by the operating system's network stack.  As Emile
> said, RabbitMQ has no way to observe or control the MTU.
>
> I'm not sure why you would be concerned about the MTU.  Perhaps you
> could tell us what you are trying to achieve, in order for us to give
> useful advice?  Otherwise, MTU settings are probably something to
> discuss on an operating system specific forum.
>
> David
>
> --
> David Wragg
> Staff Engineer, RabbitMQ
> SpringSource, a division of VMware
>
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