Rollback Plan

If the change causes issues during the window:

ISE Rollback (Evan Rosado)

Disable or delete the authorization rule in Wired 802.1X Closed Mode policy set
Delete the authorization profile
Affected endpoints will fall through to default policy (existing behavior)

Switch Rollback (Tony Sun)

! Remove VLAN from trunks
configure terminal
  interface <TRUNK_INTERFACE>
    switchport trunk allowed vlan remove <VLAN_ID>
  exit

! Remove VLAN from switch
  no vlan <VLAN_ID>
end
write memory

Repeat on each SRT switch and Nexus distribution.

Rollback Verification

show vlan id <VLAN_ID>
! Expected: VLAN not found

show interfaces trunk | include <VLAN_ID>
! Expected: No output