This project
involved design and development of a network surveillance
device for ATM protocols. With its extensive set
of measurements, drop-insert capabilities and
remote testing features this device could be used
in applications like testing ATM central office
devices, by engineers in a lab environment, automated
test systems in manufacturing plants and by technicians
in field service.
The ATM card was a 12 layer, 66 MHz board with 3
BGA components on it. It had following
 |
Support for
AAL0, AAL1, AAL5 |
|
ATM HEC error generation
and analysis |
|
Support for ABR |
|
Support for PLCP and O.191 |
As shown in the figure above, ATM cells were
mapped into the SDH/SONET/PDH payloads. The node
controller card was the interface to the external
world and provided features like a touch screen
GUI and remote testing. It had an Ethernet hub
to communicate with the protocol processing cards.
Trillium’s UNI signaling stack was ported
onto the ATM card. |
