Re: Ethernet Chip Suggestion

Most Ethernet controller can receive small packets. But you may have to
write our own mac lever driver for the chip can configure it to do that. The
small frames may come back with error bits set in the status, which are
ignored since you wrote the driver.

Btw, I was a past Network General driver engineer, but that was many years
ago and the company has been sold/merged with MacAfee in 1998 and that spun
off again recently in 2004

Good luck, not for the faint at heart for those who haven't ever wrote
hardware drivers before.

cel


"Richard H." <rh86@xxxxxxx> wrote in message
news:q28Ve.14424$ct5.8448@xxxxxxxxxxxxx
> Archer wrote:
>
> > I'm doing some research on network. I wanna a chip that can capture
> > runt frame in 2 bytes. Is there any suggestion?
>
> As in, a runt frame that is 2 bytes long? Or, did you mean something
else?
>
> The controllers I've looked at support turning off the MAC-layer
> error-checking, so you should be able to receive clobbered packets in
> the buffer. How short, I can't say, as this is a really niche need.
>
> I'd say, you'll need to read some datasheets, find some that look
> promising, and test them. Sounds like a lot of time & effort.
>
> If it's not worth that much trouble, talk to Network General (Sniffer
> manufacturer) and see what they have to say about your needs. They're
> most likely to know of a device / card / setup that could do this, but
> it'll likely cost a lot.
>
> Richard


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