SMBv1 (Server Message Block) and it’s related protocol CIFS are deprecated and obsolete. https://docs.microsoft.com/en-us/archive/blogs/josebda/the-deprecation-of-smb1-you-should-be-planning-to-get-rid-of-this-old-smb-dialect
What do they mean?
Common Internet File System
Network File System
Distributed File System
Is it supported?
Yes, Cognitive Toolkit supports crawling CIFS, NFS, and DFS-based file shares.
Special Note on CIFS
Windows® may need to be configured to support SMBv1/CIFS (client-side), which is disabled by default on Windows® Server 2016, Windows® 10, and Windows® 11. This feature is disabled in Windows® since SMBv1/CIFS is deprecated by Microsoft®. Enabling this Windows® feature may pose security risks for your organization and we do not endorse its use. SMBv1/CIFS was replaced by SMBv2 and SMBv3.