Hi everyone,
I try to prevent a cross link between two ASR9k from becoming the designated port.
spanning-tree pvrst CORE-CROSSLINK
vlan 500
priority 28672
!
interface Bundle-Ether1
vlan 500 cost 2
!
interface TenGigE0/1/0/2
vlan 500 cost 4
guard root
!
interface TenGigE0/1/0/3
vlan 500 cost 4
guard root
!
!
How can I configure the interface 'Bundle-Ether1' with a loop guard?