[etherlab-users] EtherCAT: bandwidth question

[Friedbert Widmann]

We are discussing about a embedded system that should gather a lot of data
channels from several EtherCAT devices (slaves). 
We will achieve a bandwidth for raw user data of approx. 2MByte/s.
The application in the user space should read this data, reorganize them and
send them with a proprietary protocol over another ethernet interface.

We plan to use an embedded linux and a EtherCAT master library (like IcH
EtherCAT Master).
And now my questions (I am a newbie to the EtherCAT technology): 
What are the minimum hardware requirements to meet this plan?
Do you believe that a small embedded linux will meet this requirements?
  (modules with freescale MPC5200, 400MHz, 100MBit eth nic, ...)
Where are the bottle necks in this system?

Yours sincerely

Friedbert Widmann
Dipl.-Inform.
Software-Engineer