DPI does not require any decryption of payload. Even cheap consumer devices can perform DPI on encrypted traffic. ISPs absolutely use DPI as a part of standard practice, and have been for decades. It is a basic network traffic management tool.
DPI does not require any decryption of payload. Even cheap consumer devices can perform DPI on encrypted traffic. ISPs absolutely use DPI as a part of standard practice, and have been for decades. It is a basic network traffic management tool.