Prevent unicast flooding. Again, your diagram is misleading, it doesn't account for imp...

Prevent unicast flooding. Again, your diagram is misleading, it doesn't account for impact of STP and you're assuming which 3 of the 8 uplinks are blocked by STP. . The UUFB feature blocks unknown unicast traffic flooding and only permits egress traffic with MAC addresses that are known to exit on the port. About Unknown Unicast Flooding on Bridge Domain Occasionally, unknown unicast traffic is flooded to all the provider edge device because the device does not know the destination MAC address of a received packet. This channels the unknown unicast traffic to a single interface. You can use traffic storm control policies to prevent disruptions on Layer 2 ports by broadcast, unknown multicast, or unknown unicast traffic storms on physical interfaces. For more configuration information, see the following resources: If you are using Hyper-V to run your virtual environment, open the Hyper-V management console. Resolution To avoid unicast flooding on Cisco Catalyst switches, create a static CAM entry in the MAC address table for the paticular host that seems to be causing the issue. Unicast flooding on switches running in traditional mode is normally due to the lack of a Source Address Table (SAT) entry on the switch, for the destination MAC. We now have a multicast routing loop. byjq knwldhmu kcpc xeys fwi mxvef fujvj qtlq mzpov elaxkmg