On Thu, May 17, 2007 at 07:56:43AM +0100, Ted Harding wrote:
Now that you ask -- they are described as switches. Sorry to have been sloppy about this.
That's ok, it's an important detail I didn't want to assume you meant switch when you did really have hubs.
So a possible explanation is that A is working at 100mps, and C is working at 10mbs, and both are plugged in to a switch whose separate ports are not independently adaptable; whereas previously B and C were plugged in to a switch where one port could handle the 100mbs and the other could handle the 10mbs.
More or less what I'm thinking, it might be autonegotiation failing but you can get the status of ethernet connections with the program mii-tool and force them to the right values if necessary. Just make sure you look at the device stats from ifconfig for things like collisions and errors etc. it might be that this will reveal what is happening.
and are they all indicating that everything is plugged in at 100 meg?
I don't know -- how can one tell?
mii-tool or look at the blikenlights, there will be (on most, not all) switches be a light to indicate if a port is set to 100 meg or not.
Adam