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Medium Access Control (MAC) and Physical Layer (PHY) - CISE

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4-June-07 P1901_PRO_016_r0<br />

11.8 <strong>MAC</strong> FILTER PARAMETERS<br />

• <strong>MAC</strong>_INGRESS_FILTERING_ENABLE = [YES | NO]<br />

o Parameter: Enables (YES) or disables (NO) <strong>MAC</strong> ingress filtering in Ethernet interfaces.<br />

o SNMP: no<br />

o M<strong>and</strong>atory: no<br />

Enables or disables <strong>MAC</strong> ingress filtering in Ethernet interfaces (EXTA <strong>and</strong> EXTB). If enabled, only the<br />

incoming frames whose source <strong>MAC</strong> address is contained in the allowed <strong>MAC</strong> list will be processed by the<br />

bridge. If disabled, any <strong>MAC</strong> incoming frame will be processed, regardless its source address.<br />

• <strong>MAC</strong>_INGRESS_FILTERING_MAX_ALLOWED = [1 … 4]<br />

o Parameter: Values from 1 to 4 are possible.<br />

o SNMP: no<br />

o M<strong>and</strong>atory: no<br />

Configures the maximum number of <strong>MAC</strong> addresses contained in the allowed <strong>MAC</strong> list for <strong>MAC</strong> ingress<br />

filtering.<br />

• <strong>MAC</strong>_INGRESS_FILTERING_MODE = [FIXED | AUTO]<br />

o Parameter: Two possible values: FIXED or AUTO. If FIXED is selected, the allowed <strong>MAC</strong> list<br />

must be filled entering each <strong>MAC</strong> address manually. If AUTO is selected, the allowed <strong>MAC</strong> list is<br />

automatically filled with any new source <strong>MAC</strong> address learnt by the bridge.<br />

o SNMP: no<br />

o M<strong>and</strong>atory: no<br />

Selects one of the following <strong>MAC</strong> ingress-filtering modes:<br />

o Fixed. In this case, the allowed <strong>MAC</strong> list must be filled entering each <strong>MAC</strong> address manually.<br />

o Automatic. In this case, the allowed <strong>MAC</strong> list is automatically filled with any new source <strong>MAC</strong><br />

address learnt by the bridge. Until the list is not full, the filtering is not actually performed. Once<br />

the list is full, the filtering is enabled <strong>and</strong> any frame with source <strong>MAC</strong> address not contained in the<br />

list will be discarded.<br />

In both modes, the own <strong>MAC</strong> address is never filtered, i.e. it is implicitly contained in the allowed <strong>MAC</strong><br />

list, although not taken into account when computing the number of allowed addresses.<br />

• <strong>MAC</strong>_INGRESS_FILTERING_FIXED_<strong>MAC</strong>.i 0xXXXXXXXXXXXX<br />

Submission page 310 UPA-OPERA

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