> I'm no network expert but I thought it was relatively solved and problems are due to underprovisioning. Protocols like TCP will ramp up to use all available

> I'm no network expert but I thought it was relatively solved and problems are due to underprovisioning. Protocols like TCP will ramp up to use all available bandwidth, ensuring there's congestion somewhere along the path. So you cannot simply blame everything on "underprovisioning". Bufferbloat is mostly solved in theory by AQMs like CoDel, but is still a problem in practice due to spotty deployment, especially for wireless links where congestion management is more complicated, and sometimes backbone links that are fast enough any congestion management needs to be implemented in hardware.