**make sure the software version is the same
**make sure the same license type
**make sure you use the same stackwise virtual domain

**do this on each 9500

**configuring the stackwise virtual domain
conf t
stackwise-virtual
domain 1


**configuring the virtual link
conf t
interface range hun1/0/49 - 50
stackwise-virtual link 1

***update: if you get an error when adding the second interface: "The speed of the interface does not match the speed of the interfaces on SVL link 1"...This is a BUG. Error does go away when you upgrade to 16.12.4.***

**configuring dual active detection (DAD)
interface twe1/0/48
stackwise-virtual dual-active-detection


**reload

**verification commands
show switch
show stackwise-virtual dual-active-detection
show stackwise-virtual link

свернуть