
Configuring ATM DXI Services
2-8 117375-A Rev. A
Figure 2-3 illustrates how each mode handles data transfer from the router to the
DSU/CSU.
Figure 2-3. DXI Modes of Operation
To select a mode for your router, configure the DXI Mode parameter (refer to
“Interface Parameters” in A
ppendix A for details).
Note: Use this mode if your configuration uses pre-ATM Forum DXI
DSU/CSU devices (for example, a Digital Link DL3200).
Mode 1A Mode 1B Mode 2/Mode 2 Proprietary
Mode 1A
Mode 1B
Mode 1B
Mode 2 Mode 2
AAL 3/4
AAL 3/4
AAL 3/4
AAL 3/4
AAL 3/4
AAL 3/4
AAL 5 AAL 5 AAL 3/4 AAL 5 AAL 3/4
DSU/CSU DSU/CSUDSU/CSU
ATM0009A
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