10-26-2009 06:28 AM - edited 03-06-2019 08:18 AM
Hi,
What are the drawbacks of enabling this command on a port? Will it help prevent unicast flooding?
Thanks.
10-26-2009 06:50 AM
Roselyn,
Unknown unicast traffic is flooded to all Layer 2 ports in a VLAN. You can use the UUFB and UUFRL
features to prevent or limit this traffic
http://www.cisco.com/en/US/docs/ios/interface/command/reference/ir_s7.html#wp1013145
HTH
Reza
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