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ATM Option System Reference - Comtech EF Data

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4.4 Scrambling function<br />

4.5 UNI Version<br />

SE/SLOT/CHANNEL Configuration Parameters<br />

Console SNMP Text-based Config<br />

Scrambling function ifwanScramblingFunction [ifwan#] ScramblingFunction<br />

Enables or disables cell scrambling, which permits randomizing the cell payload. Cell<br />

scrambling can be used to avoid a continuous stream of invariable bit patterns, which can<br />

improve the efficiency of cell delineation.<br />

• When you select ENABLE the NetPerformer applies cell scrambling before transmission,<br />

and descrambling on the received traffic stream.<br />

Cell scrambling must be enabled on both sides of the connection.<br />

• When you select DISABLE (the default value), cell scrambling is not applied.<br />

Values: DISABLE, ENABLE<br />

Default: DISABLE<br />

Console SNMP Text-based Config<br />

UNI Version ifwanAtmUniVersion [ifwan#] AtmUniVersion<br />

Select the value that matches the UNI version used by the <strong>ATM</strong> switch:<br />

• NONE: UNI is not used. The ILMI and signaling VCs are not established.<br />

• 4.0: UNI 4.0<br />

• 3.1: UNI 3.1<br />

• 3.0: UNI 3.0<br />

NOTE: Auto configuration of this parameter is not supported.<br />

Refer to “User to Network Interface (UNI)” on page 1-7 for further information.<br />

Values: NONE, 4.0, 3.1, 3.0<br />

Default: 4.0<br />

Memotec Inc. 4-3

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