Free TCP/IP stack to be used

Free TCP/IP stack to be used

[Keyur Chudgar]

Hi,

I am looking for free TCP/IP stack to be used in my system.
Can anybody suggest which one I should go for? It should be
light weight and not like Linux TCP/IP stack. I came across
LwIP, but I am not sure about it's performance.

Your suggestions would be appreciated.

Thanks,
- Keyur

Re: Free TCP/IP stack to be used

[Evgeniy Polyakov]

Hi.

On Sat, Jul 19, 2008 at 01:56:07PM -0700, Keyur Chudgar (kchudgar.linux@gmail.com) wrote:
> I am looking for free TCP/IP stack to be used in my system.
> Can anybody suggest which one I should go for? It should be
> light weight and not like Linux TCP/IP stack. I came across
> LwIP, but I am not sure about it's performance.

What system, what load, what ...?
Your question is quite incomplete :)

Anyway, I will advertise following userspace network stack (works either
on top of packet socket or own packet reading/writing interface, so if
you are creating your own kernel, the only thing you need is to create a
channel to driver to be able to send and receive packets into the
queue):
http://tservice.net.ru/~s0mbre/old/?section=projects&item=unetstack

It supports TCP/UDP over IP, but you can extend it whatever you like,
It is licensed under GPLv2 or higher.

-- 
	Evgeniy Polyakov

Re: Free TCP/IP stack to be used

[Andi Kleen]

"Keyur Chudgar" <kchudgar.linux@gmail.com> writes:

> Hi,
>
> I am looking for free TCP/IP stack to be used in my system.
> Can anybody suggest which one I should go for? It should be
> light weight and not like Linux TCP/IP stack. I came across
> LwIP, but I am not sure about it's performance.

FWIW In the big scheme of things (especially when you strip it down a
little bit at the CONFIG option level or perhaps use the 2.4 version)
the Linux stack is not actually that heavy in memory. In particular
many other stacks tend to use pre-allocated packet pools which can
easily use a lot more memory than the code delta even of a larger
stack. The Linux stack at least in most drivers doesn't do that and
only allocates memory on demand. There are unfortunately now a few
highend drivers who start using preallocated pools too, but these can
be still easily avoided.

-Andi