Does VNA support Viptela 20.x?
CAPM 3.7 +
Per the documentation: https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/virtual-network-assurance/3-7/building/viptela.html
The current support for Viptela is as follows:
Virtual Network Assurance supports the following releases of Viptela:
Viptela 19.x (3.7.12 and higher only)
At this time we have not certified Viptela 20.x so it is not recommended that you use that version.