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cisco:switch [2010/04/16 23:56]
a
cisco:switch [2011/11/24 13:34] (current)
greebo
Line 8: Line 8:
   * **traffic with dest. mac addresses unknown to the switch, which is flooded to all ports but the one where the packets entered.** \\   * **traffic with dest. mac addresses unknown to the switch, which is flooded to all ports but the one where the packets entered.** \\
  
-When one uses "''**switchport block unicast**''", the third type on the list, the so called "''unknown unicast''" traffic is noe forwarded to the specific port, so the only traffic exiting the port will be the broadcast (ff...) or the packets that have as destination mac, one of the mac-addresses learned on the port. \\+When one uses "''**switchport block unicast**''", the third type on the list, the so called "''unknown unicast''" traffic is not forwarded to the specific port, so the only traffic exiting the port will be the broadcast (ff...) or the packets that have as destination mac, one of the mac-addresses learned on the port. \\
 \\ \\
 A problem arises when a host connected somehow to that port does not send any traffic for more than ''$mac_address_aging_time'' (usually 5 min): the mac will be erased from the mac address table, and the traffic will  A problem arises when a host connected somehow to that port does not send any traffic for more than ''$mac_address_aging_time'' (usually 5 min): the mac will be erased from the mac address table, and the traffic will 
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