X3200
User’s Guide
193
Settings Specific to WAN Partners
6
Short Description
AO/DI uses X.25 data packet transmission in the D-channel (X.31) to set up a
PPP connection (PPP over X.25). 9600 bps are available for data transmission
in the D-channel (D-channel Mode). If more bandwidth is needed, one or more
B-channels are dynamically added (Dynamic ISDN). Data transmission in this
case is only in the B-channel or B-channels (B-channel Mode).
AO/DI offers the following advantages:
■
three full communication channels, which can be independent if required
■
permanent connection to the Internet at low-cost
■
transparent bandwidth control
■
in D-Channel Mode
–
high reliability and guaranteed throughput times
–
volume-oriented charges independent of distance
■
in B-Channel Mode:
–
time-dependent connection charges only for bandwidth-intensive ap-
plications
How Does AO/DI Work?
AO/DI is implemented in
X3200
via a special PPP interface. As soon as the in-
terface is configured and ready for operation, the initial PPP connection is set
up via X.31 (X.25 in the D-channel). This involves carrying out authentication of
the PPP connection partner and assigning a dynamic IP address and DNS ad-
dresses, if applicable (AO/DI Client Mode).
The use of the B-channels is controlled by the data throughput or by application-
dependent bandwidth management (Bandwidth on Demand, BOD for IP-based
applications). Both Bandwidth on Demand and BOD for IP-based applications
uses the Bandwidth Allocation Control Protocol (BACP/BAP to RFC 2125) in or-
der to agree with the remote terminal on the circumstances under which B-
channels are to be added or dropped. The use of BACP/BAP is agreed during
the initial connection setup. As the D-channel connection is normally no longer
ended after connection setup, it represents a permanently available (always on)
connection to the provider.
Содержание X3200
Страница 4: ...4 BinTec Communications AG...
Страница 28: ...28 BinTec Communications AG Welcome 1...
Страница 255: ...X3200 User s Guide 255 IPX Settings 6 Enter Age Multiplier if applicable Confirm with OK Press SAVE...
Страница 258: ...258 BinTec Communications AG Advanced Configuration 6...
Страница 348: ...348 BinTec Communications AG Technical Data 10...
Страница 361: ...X3200 User s Guide 361 12 Niemals Scheuermittel alkalische Reinigungsmittel scharfe oder scheuernde Hilfsmittel benutzen...
Страница 369: ...X3200 User s Guide 369 12 BinTec Communications AG...
Страница 393: ...X3200 User s Guide 393 12...
Страница 394: ...394 BinTec Communications AG General Safety Precautions in 15 Different Languages 12...
Страница 412: ...412 BinTec Communications AG Glossary...
Страница 419: ...X3200 User s Guide 419 Index WINS 210 229 X X 31 TEI 182...