Channel bonding was introduced in which version of DOCSIS?

Channel bonding was introduced in the transition from DOCSIS 2.0 to DOCSIS 3.0. This feature allows multiple channels to be combined, effectively increasing the data throughput available to end users by aggregating bandwidth from different frequencies. It plays a crucial role in providing higher internet speeds and improving the overall performance of broadband services.

DOCSIS 3.0 introduced not just channel bonding but also several other enhancements that allowed cable operators to meet the growing demand for faster internet speeds and greater reliability. This development set the stage for subsequent versions like DOCSIS 3.1 and 4.0, which built upon the foundation laid by 3.0, focusing on even higher capacities and advanced technology, such as support for 10 Gbps downstream speeds in DOCSIS 3.1 and beyond. However, the key advancement of channel bonding specifically happened between 2.0 and 3.0, making that the correct option in this context.