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Cisco: Block Multicast on a Specific Port

Posted by SteveHardie | On: Feb 05 2016

Quick couple of lines to disable multicast traffic on a specific interface or port.

interface GigabitEthernet1/0/1
 switchport block multicast
 storm-control multicast level 0.00
!

The first command stops outbound multicasts from getting out.
The secondcommand prevents inbound multicasts from entering the switchport.

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