On Tue, 1 May 2007, Bob wrote:
I tried to look this up with google, but didn't find any sensible answers. I.e. I'm building a gigabit network at home, and I now have an 100Base-TX network here. I would like to add a gigabit network to it. This gigabit network will ofcourse run with jumbo frames. Now my question is basically, can I plug an em and a fxp network cards into a machine and configure it to run with brconfig? Will the bridge fragment oversized packets from the gigabit network when talking to the 100Base-TX network? I'm running ofcourse OpenBSD 4.1-current on the machine that acts as a bridge.
This is not possible. The bridge just takes a paket from one interface and puts it on the other interface(s). So jumbo frames are no option if a 100Base-TX network is connected.
You could route between the two networks, then the router would fragment the pakets if they are too large.
Greetings Markus

