
Customizing WAN Interfaces
115391-A Rev. A 4-9
Setting the Framing Mode
By default, the framing mode is SONET. You can change the framing mode to
SDH, or back to SONET.
Enabling or Disabling Scrambling
Scrambling randomizes cell payload to guarantee cell synchronization.
Scrambling is enabled by default when you add the ATM ALC interface. You can
disable and reenable scrambling on the interface.
Enabling or Disabling Loopback
In loopback diagnostic mode, the BayStream software retransmits received data to
the sender. By default, loopback mode is disabled when you add the ATM ALC
interface. You can enable and disable diagnostic loopback for the interface.
Configuring Cell Insertion
In the absence of user cells, the framer device fills idle bandwidth with either idle
or unassigned cells. You can configure Cell Insertion for idle or unassigned cells.
By default, the BayStream software fills idle bandwidth with unassigned cells.
Site Manager: Framing Mode parameter: page A-25
Site Manager: Scrambling parameter: page A-26
Note: Disabling scrambling may cause cell synchronization problems.
Site Manager: Loopback parameter: page A-26
Site Manager: Cell Insertion parameter: page A-26
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