User Guide

ATM traffic handling
ATMF25 port
13 Networking - ATM
143 / 288
3EC 36231 ABAA TCZZA Ed. 01
13.1.3 ATM and Interfaces
ATM traffic arriving at the STPro is switched to either the Ethernet
port(s) or the (optional) ATMF25.6 port depending on the VPI/VCI
values in the individual cells.
Inside ATM VCs any protocol can be transported. However, at
both endpoints - that is where the ATM channels are terminated
- the same protocol must be supported. If not, there will be no
endtoend connectivity.
This port, optional available on the single Ethernet port STPro,
does not terminate ATM connections, it just switches ATM cells
between the DSL and ATMF25.6 port.
It is the ATMF25.6 PCNIC of the PC that actually initiates or
terminates the VCs.
It is important to check in advance which protocols are supported
by the ATMF25.6 PCNIC driver. At least RFC1483 and RFC2364
should be fully implemented.
See section 13.2 for more information.