It is similar to price controls, limiting the price a service can be offered at. Like price controls, it causes shortages by making the service too cheap for some users, increasing demand for them to use it even more, and making it too expensive for other users, who don't use it very much.
Let's say you're a company like Netflix, and you and/or your customers use 30% of an ISP's bandwidth. Why shouldn't you and/or your customers pay more for using more bandwidth? If Net Neutrality forces everyone to pay the same, then the costs of the extra bandwidth used by some customers will have to be paid by other customers, raising everyone's prices.
The idea of offering different levels of service at difference prices should be welcome, because it allows low-income people to afford the internet, and it ensures that enough resources are allocated for heavy-duty users. If Net Neutrality says that all internet services should be offered at the same bandwidth and same price, then it will raise the price for all customers, and it will make heavy users of the internet overuse it, making ISPs use throttling to avoid the inevitable overuse which occurs when prices are too low for some customers.
(Think of the 1970s gas shortages when Nixon instituted price controls -- the result was that customers had to be "throttled" by only being allowed to buy gas on certain days based on their license plate number. If this "throttling" wasn't done, there would be worst gas shortages and empty tanks because the heavy users would use up all of the gas because their demand for it is more than the price-controlled price indicates.)
As for blocking or throttling certain protocols/ports, this is wrong, but I think it's a symptom of other issues, such as security vulnerabilities, or overuse of a given level of service because it's priced too low.
It is similar to price controls, limiting the price a service can be offered at. Like price controls, it causes shortages by making the service too cheap for some users, increasing demand for them to use it even more, and making it too expensive for other users, who don't use it very much.
Let's say you're a company like Netflix, and you and/or your customers use 30% of an ISP's bandwidth. Why shouldn't you and/or your customers pay more for using more bandwidth? If Net Neutrality forces everyone to pay the same, then the costs of the extra bandwidth used by some customers will have to be paid by other customers, raising everyone's prices.
The idea of offering different levels of service at difference prices should be welcome, because it allows low-income people to afford the internet, and it ensures that enough resources are allocated for heavy-duty users. If Net Neutrality says that all internet services should be offered at the same bandwidth and same price, then it will raise the price for all customers, and it will make heavy users of the internet overuse it, making ISPs use throttling to avoid the inevitable overuse which occurs when prices are too low for some customers.
(Think of the 1970s gas shortages when Nixon instituted price controls -- the result was that customers had to be "throttled" by only being allowed to buy gas on certain days based on their license plate number. If this "throttling" wasn't done, there would be worst gas shortages and empty tanks because the heavy users would use up all of the gas because their demand for it is more than the price-controlled price indicates.)
As for blocking or throttling certain protocols/ports, this is wrong, but I think it's a symptom of other issues, such as security vulnerabilities, or overuse of a given level of service because it's priced too low.
[1] https://www.youtube.com/watch?v=GYoOSHYXI3c