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xDSL Network Module for the UTM9S and UTM25S
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ProSecure Unified Threat Management (UTM) Appliance
Figure 321.
4. Either click Auto Detect or, if you have the correct settings, enter the settings as explained
in the following table:
Table 140. xDSL settings
Setting Description
xDSL Settings
DSL Transfer Mode Select one of the following DSL transfer methods:
• PTM. Packet Transfer Mode (PTM) has a functionality that is similar to
packet-switched networking and does not use multiplexing.
• ATM. Asynchronous Transfer Mode (ATM) uses Asynchronous Time-Division
Multiplexing (ATDM) to encode data into small, fixed-sized cells. ATM has a
functionality that is similar to circuit-switched networking and
small-packet-switched networking.
When you select ATM, you also need to configure the multiplexing method, VPI,
and VCI.
Multiplexing Method Select the VDSL multiplexing method for the ATM mode:
• LLC-BASED. Multiplexing is based on Logical Link Control (LLC) encapsulation.
• VC-BASED. Multiplexing is based on use of a virtual circuit (VC).