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Cisco Bug: CSCus93049 - CLI "switchport block unicast" is ineffective on certain scenario's

Last Modified

Feb 15, 2018

Products (1)

  • Cisco Nexus 3000 Series Switches

Known Affected Releases

6.0(2)U3(2.68) 6.0(2)U3(5.94)

Description (partial)

The 'switchport block unicast' and 'switchport block multicast' CLIs are not effective when they are configured with multiple port-channels.

There should be multiple port-channels configured with either 'switchport block unicast'/'switchport block multicast'. Let's assume switch has 2 port-channels. Bringup of 2nd port-channel will impact 'block unicast' / 'block multicast' hardware programming of 1st port-channel.
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