Aurora
Presto
—User Guide
4-12
481801
•
ATM layer throughput
These can be caused for example, by:
- problems with remote modem buffering
- incompatible ATM multiplexer ratios
- incorrect ATM or IP addressing.
•
ATMF 25.6 interface configuration
This can be caused by faulty PC or NIC
interconnecting cabling.
The following diagram shows the point where you
should connect
Aurora
Presto
to simulate a DTE.
For key see
Simulating a DTE or Modem to Network
You can configure
Aurora
Presto
to simulate an ATU-
R and use it as a troubleshooting tool during ADSL
service line provisioning and testing over a known
good copper pair line. Once the ADSL line is
synchronised with the remote ATU-C,
Aurora
Presto
(simulating an ATU-R) can be used to check the ATM
virtual channels on the ADSL access line.
If the customer uses a DTE with an internal ADSL
modem (NIC Card),
Aurora
Presto
can be used instead
of the DTE/ATU-R to terminate the access line on
ADSL/ATM line level as well as on the network end-
to-end IP protocol level.
ATM
ADSL Line
(copper pair)
Ethernet or
ATMF 25.6
Aurora
Presto
testing at the DTE
Aurora
Presto
operating at the DTE on the
Ethernet or ATMF 25.6 interface
DTE
DSLAM
CO
ATU-C
ATU-C
ATU-C
Modem
(ATU-R)
481801-7.book Page 12 Thursday, May 23, 2002 10:46 AM
Summary of Contents for AuroraPresto
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