December iMac vs. Netgear GS105 hub

[Gregor Alessi]

On 03.03.2007, at 21:19, Chad Leigh wrote:

>
> On Mar 3, 2007, at 12:18 PM, LuKreme wrote:
>
>> On 2-Mar-2007, at 17:45, Tom M.Blenko wrote:
>>> AppleCare has been utterly unhelpful. They say that when iMac is  
>>> plugged back to back with the dual G5 there's nothing wrong, so  
>>> it's not a problem with the machine or its configuration. They  
>>> want to blame the hub.
>>
>> And they are right.  If it works without the hub and it doesn't  
>> work with the hub, then the hub is the issue.
>
> Well, it is not that simple.  In this case it probably is the hub.
>
> But directly hooking the two Macs together with a crossover  cable  
> and it then working does not say that the Mac does not have an  
> issue in meeting the ethernet spec that just doesn't happen to get  
> tripped when hooking them together (maybe they both have the same  
> issue so can talk together, both wrong)

First thing I would try is a real router, and replace this fancy  
Airport thing handing out IPs and somehow shoving packets around.
Were having Netgears here (well, the 10/100 ones, FS series) but I  
think we get more than 1-2 MB/s.

AFAIK, Airport Extreme doesn't do Gigabit.
http://gizmodo.com/gadgets/wireless/the-things-other-apple-airport- 
extreme-reviews-dont-tell-you-237233.php

I know the connection speed should be negotiated between the involved  
hosts (in this case iMac-Switch-DPG5), so the router should not be  
involved. Maybe some of the gurus could shed some light on how those  
connections are invoked.

Regards

Gregor