The truth about broadband service providers

Author Profile: Wind0731, an IT employee with many years of experience in network management,-10 years old, is the best DingTalk household of Liuyang Telecom. All right, go straight to the question! I. broadband service providers 1. advantages of China Telecom: exclusive bandwidth, EPON Optical fiber, and independent

Author Profile: Wind0731, an IT employee with many years of experience in network management,-10 years old, is the "best DingTalk user" of Liuyang Telecom ". All right, go straight to the question!

1. broadband service providers

1. China Telecom

Advantages: exclusive bandwidth, EPON Optical fiber, independent public IP address, and fast access to foreign websites.

Insufficient: expensive, bundled packages, and general service attitude.

2. China Unicom

Advantage: low cost, good service attitude, open a foreign website, a little slower than China Telecom. There used to be a public IP address. now there is no public IP address!

Insufficient: bandwidth sharing, unstable network speed, slow peak periods, and no public IP addresses in some regions.

3. Guoan radio and television

Advantages: low cost and good service attitude. many foreign websites cannot be opened directly.

Insufficient: bandwidth sharing, unstable network speed, slow peak periods, and no public IP addresses.

4. the features of other networks are the same as those of the 2 and 3 floors.

2. technical term answers

Assume that 4 Mbps bandwidth is used and 4 Mbps of writing is used.

1. dedicated bandwidth and bandwidth sharing

Exclusive: no matter whether you use it or not, the speed of your line will always be yours. the speed is only 4 MB, and it will not exceed or be less.

Sharing: you can share a large network with 6 or 8 vswitches with 20 megabytes of access. when the network is fast, it can reach 4 megabytes or faster, and when it is slow, it must not reach 4 megabytes.

Sharing is a "big pot of rice". it can be used by family users who have a lot of movies and do not have fast requirements on the network speed. The network speed is slow during working hours and the network speed is slow after dinner.

Users requiring fast website access, online gaming, and low latency are certainly not a good choice for sharing.

One sentence: 2 M Exclusive website access and playing games, faster than 4 m sharing. Downloading speed or watching movies, sharing is dominant, but it depends on the character and surfing time.

2. broadband, optical fiber and residential users

For telecom users in broadband, ADSL, and rural areas, the download speed is 4 MB, and the uplink speed is only 512 kB, that is, half a gigabit. The failure rate is high. The transmission conductor is a telephone line, and the package is bundled for consumption.

Optical fiber, which is divided into large and small optical fiber. large optical fiber is used by enterprises or units. the household is an EPON small optical fiber, and the uplink and downlink are equivalent. The network delay is very low and the failure rate is low.

Residential users, that is, the network is connected to the floor, and then the network cable is connected to the household directly to the computer or access vro. The failure rate is low, and the network speed is viewed, shared, or exclusive.

In a word, rural users only have no way to install ADSL. urban users can install EPON very well. the residential broadband should select the exclusive bandwidth as far as possible, and the large optical fiber will not be discussed.