Wednesday, May 8, 2019

Any impact of using switchport block unicast feature

is there any impact of using "switchport block unicast" command on switchport connected to host? does it going to limit my legit traffic or impact on any regular traffic?

we are seeing unicast flooding flooding when spanning-tree change and trying to protect my servers with flood.

current configuration of my switch ports connected to servers:

interface Ethernet1/32

description ostack-compute

switchport mode trunk

switchport trunk native vlan 40

switchport trunk allowed vlan 10-11,20-21,28-31,40,50,100,200

spanning-tree port type edge trunk

spanning-tree bpduguard enable



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