Bridge Assurance

Would be good to see a walkthrough of this technology - not sure if this is exclusive to NX-OS or not

I will create a lesson for this sometime. Basically, what it does is that when you don’t receive any BPDUs anymore from your neighbor switch, the interface will go in port inconsistent state and will block traffic. It is supported on IOS btw. Not sure which exact version but VIRL supports it:

SW1#show version    
Cisco IOS Software, vios_l2 Software (vios_l2-ADVENTERPRISEK9-M), Version 15.2(4.0.55)E

Here’s the command:

SW1(config)#spanning-tree bridge assurance