Catalyst 9200CXseriesについて

[SannYuSann1029]

以下ご教示頂きたく、よろしくお願いします。

Catalyst 9200CXseriesはDNAライセンス購入が必須でしょうか。

ライセンス購入が無しでも利用可能か。（必要な機能はPoE++とL2機能です。）

また、

Catalyst 1000 seriesのreplacementとして利用適切であるか。

[Rich R]

Is the Catalyst 9200CXseries required to purchase a DNA license?
Yes - the license is mandatory
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9200-series-switches/nb-06-cat9200-swit-ser-cte-en.html#Softwarelicenseoptions
"¹For all new orders, subscription licenses are mandatory and must be of the same tier as network licenses "

Can I use it without purchasing a license? (The required features are PoE++ and L2 capabilities.) ）
No, that would be in breach of Cisco licensing terms and conditions.

Is it appropriate to use it as a replacement for the Catalyst 1000 series?
Potentially yes - but that depends on your specific requirements.  Compare your requirements to the features available on the various switch models to find the best match.