Agilent Technologies AuroraPresto, User Manual

Page: 151 / 266

Section 5 - ATM Layer Tests
Issue 7 - 05/02 4-51
5
ATM Layer Tests
Aurora Presto
can generate, transmit and receive AAL-5
encapsulated ATM packets.
You can configure
Aurora Presto
to accept data via the
10 Base T (or optional) ATM 25 data port.
When 10 Base T is selected as the data port, Ethernet frames
are processed into AAL-5 encapsulated ATM packets for
transport over the ADSL layer. For Higher level statistics for
mapped and unmapped VCs
see Displaying ATM Layer
Test Results on page 4-53 . These statistics reflect the
increased, level of processing involved.
When ATM 25 is selected as the data port, the native ATM
cells are transmitted via
Aurora Presto
onto the ASDL layer.
A top level view of the statistics is provided for this simple
MAC bridging operation.
Setting up the Data Port Connection
Setting up the ATM Layer Test Data Connection
This sets up
Aurora Presto
to simulate Golden Modem
Mode. See the diagram on page 4-10 .
-1-
From the
Main Setup
screen select
Data Port
to
display the
Data Port Setup
screen.
5
Section
ATM over ADSL
10 Base T
Ethernet
Data Port
ATM 25
(optional)
Data Port
Aurora Presto
replacing ADSL
modem
(ATU-R)
DTE
DTE
ATM
DSLAM
CO ATU-C
ATU-C
ATU-C
481801-7.book Page 51 Thursday, May 23, 2002 10:46 AM