Stackwise Virtual (vss we wont talk about the difference here) Required DNA-Advantage Licensing. Your sku c9500-48Y4C-A will cover that. Yes you can use this device with out DNAC, this is just the new licensing model. Hope that covers all of your qu...
Rwesel, Stackwise Virtual requires DNA-Advantage licensing . Table 1 & Table 2 Depending on your platform but the information is the same. https://www.cisco.com/c/dam/en/us/products/collateral/switches/catalyst-9000/nb-06-cat-9k-stack-wp-cte-en.pdf