I would like to acquire 50Mbit/s Advanced license for csr1000v ver 3.10. I found the following license descriptions on the cisco website but I am unsure if they are the right ones.
L-CSR-50M-IPB-1Y= CSR 1000V e-PAK 1-year subscription 50 Mbps IP Base Package
L-CSR-50M-IPB-3Y= CSR 1000V e-PAK 3-year subscription 50 Mbps IP Base Package
L-CSR-50M-IPB= CSR 1000V e-PAK 50 Mbps IP Base Package
I found two types of licenses, perpertual and subscription .. If I buy the perpetual license , when I upgrade the csr1000v to a higher version, will I loose the license for v3.10 ?
Thanks in advance