I have an ISE Licensing CCNA-style question that I am trying to find the answer to. If you feel you're up to the challenge, please have a go ...
Question: The scenario is that the customer purchased ISE 2.x licenses a little while ago and now wishes to build a modern ISE system. That means ISE 3.0 (gold star). The Smart Licensing Account contains the necessary VM and TACACS licenses. As for the endpoint licenses, they had previously purchased:
250 Base (Perpetual - no expiration)
250 Plus (expiration March 2022)
Customer opens a TAC case to get above licenses converted to 250 Advantage.
What will be the end result for this customer?
A) Smart Account transactions: 250 Plus deleted, 250 Advantage added (exp March 2022). 250 Base (perpetual)licenses remain in Smart account for future use.
B) Smart Account transactions: 250 Plus deleted, 250 Advantage added (exp October 2023). 250 Base (perpetual) licenses remain in Smart account for future use.
C) Smart Account transactions: 250 Base deleted, 250 Plus deleted, 250 Advantage added (exp date: March 2022). Customer must renew all license tiers after March 2022
D) Customer opens a TAC case to revert this conversion, and remains on perpetual licensing model with ISE 2.7 (250 Base) until end of support (likely 5 years from now, extrapolated, based on EOL of ISE 2.6)
Study material: ISE 3.0 Migration Guide