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Quick Root Guard Question

Antonio Knox
Level 7
Level 7

When root guard moves a port into root inconsistent state like so:

%SPANTREE-2-ROOTGUARDBLOCK: Port 1/1 tried to become non-designated in VLAN 77. 
Moved to root-inconsistent state

Does the port take that action on a per-vlan basis or does the port stop forwarding traffic for all vlans?

1 Accepted Solution

Accepted Solutions

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Antonio,

the reaction should be per Vlan if you are running a form of PVST+

the following command can be used to check ports in inconsistent state

show spanning-tree inconsistentport

Hope to help

Giuseppe

View solution in original post

2 Replies 2

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Antonio,

the reaction should be per Vlan if you are running a form of PVST+

the following command can be used to check ports in inconsistent state

show spanning-tree inconsistentport

Hope to help

Giuseppe

Thanks Giuseppe, you stay on point.  Here's another 5 points to add to your infinite pot of points.  Cheers!!!

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