What does Dedicated Network mean? What does the telecom line mean?

Dedicated network line. It's the network service provider.

To provide users with a dedicated channel, so that users' data transmission becomes reliable and reliable, the advantage of the leased line is that the security is good, and QoS can be guaranteed. However, the leased line rental** is also relatively high, and the management may require professionals.

How Does a Private Line Improve Security? This is mainly through channel technology, and there are two main types of channels:

1。Physical dedicated channel. The physical dedicated channel is to lay a dedicated line between the service provider and the user, and the line is only used independently by the user, and other data cannot enter the line, while the general line allows multiple users to share the channel;

2。virtual private channels; The virtual private channel is to reserve a certain bandwidth for the user on the general channel, so that the user can enjoy this part of the bandwidth exclusively, just like opening another channel on the public channel, only allowing the corresponding user to use, and the user's data is encrypted, so as to ensure reliability and security;

At present, there are probably the following types of leased lines used in the world:

Frame relay

Digital Data Network (DDN), ATM Asynchronous Transfer Mode, Packet-Switched Service Network, ADSL (Asymmetric Subscriber Digital Link), Virtual Private Network.

VPN Virtual Private Network) and E1, etc.

The speed of the leased line is not necessarily fast, but the security and quality are very high.

Dedicated network line. There is no doubt that the private line network is better and faster than the broadband network, and enterprise users who have requirements for the network can try the private line products.

What is a leased line network?

Private line refers to the business of relying on domestic backbone network and broadband metropolitan area network resources to provide private line access mode to meet the needs of enterprise group customers to access the Internet network and carry out various applications.

1. The cost and speed are also different.

Dedicated lines, high costs, consistent uplink and downlink speeds.

Home broadband, which has a low cost and a much lower uplink speed than a downlink speed;

2 Private line and home broadband users are different.

Private line is a service for enterprises, and home broadband is for home users.

3 leased lines, exclusive bandwidth, unlimited number of connections.

There are limits on home broadband, shared bandwidth, leased IPs, and the number of connections.

The 4 special line is like a road just opened for you.

Home broadband is like a path.

Leased line broadband refers to fixed IP, dedicated bandwidth, and optical fiber dedicated line broadband, which is directly connected to the operator's broadband server from the user's optical fiber.

Leased line broadband corresponds to shared broadband. Shared broadband means that a certain amount of bandwidth is shared by a community or building. The bandwidth rate handled by the user is only the maximum rate of the connection to the cell or to the switch port of the building.

If no one else is connected to the Internet, they can enjoy the broadband speed. If there are too many people surfing the Internet, the total egress capacity is not enough, and the Internet speed will slow down.

Private lines are generally used by companies.

The common Internet access includes private line access and broadband dial-up access, so what is the difference between private line and ordinary broadband? Here is the answer for you, optical fiber Internet access (dedicated line access) and ordinary broadband Internet access (ADSL) are two different ways to access the Internet, the biggest difference between the two is the difference in the transmission medium, optical fiber Internet access (dedicated line access) completes the transmission of optical signals, and ordinary broadband, that is, ADSL Internet access completes the transmission of electrical signals, so the speed of optical fiber Internet access will be much faster than ordinary broadband Internet access.

1. Optical fiber Internet access (private line access) has a fixed IP and ordinary broadband (ADSL) does not have a fixed IP, which is what we usually call a public IP, which is unique in the world, and it can be bound to the enterprise server as the unique identification of the external access server. And with a fixed IP, our network will be more stable, and we don't have to drop calls every three days like ordinary broadband (ADSL).

2. Optical fiber Internet access (private line access) is dual-channel, while ordinary broadband (ADSL) is one-way, usually we involve two aspects of broadband in the process of surfing the Internet, network uplink and network downlink. If you use ordinary broadband (ADSL) when uploading files, it will also be affected, which is determined by the one-way nature of ordinary broadband (ADSL), and the advantage of optical fiber Internet access (dedicated line access) is that the other party will not be affected when you upload or **, even if the upload bandwidth is full**.

3. Optical fiber Internet access (dedicated line access) is symmetrical in the uplink and downlink and ordinary broadband (ADSL) uplink is only 512K, if it is 5M optical fiber Internet access, ideally, its uplink and downlink bandwidth can run full and reach 5M at the same time, while ordinary broadband (ADSL) upload only has a maximum bandwidth of 512K, and if the upload occupies full bandwidth, its downlink will also be affected, and even drag down the entire network.

4. Different access levels in the network hierarchy architecture of optical fiber Internet access (private line access) and ordinary broadband access (ADSL) determine the different nodes, speed and stability.

5. Optical fiber Internet access (private line access) is an exclusive access mode, while ordinary broadband (ADSL) is a shared access mode, which determines that ordinary broadband (ADSL) will be affected by the peak period of Internet access, while optical fiber Internet access will not. Therefore, if you have special requirements for the stability, security and speed of enterprises or individuals, you still have to choose the private line access.

Telecom private line refers to the bridge provided to users to access the public network through the private line. Generally, private lines include ** private line, packet network private line, DDN private line, ISDN private line, and frame relay private line.

Telecom private lines make users' data transmission reliable and credible, and the advantage of private lines is that they have good security and QoS can be guaranteed. However, the leased line rental** is also relatively high, and the management also requires professionals.

A dedicated network line refers to an independent network line provided for an organization or organization, which is not shared with other users, and can ensure the security, stability and efficiency of data transmission.

It has the advantage of avoiding congestion, latency, and attacks on the public network, and improving the quality and reliability of network communication.

There are many types of leased network lines, which are mainly distinguished by the medium, rate, and range of the line. Common types of private network lines are as follows:

DDN private line: It uses digital data network as the transmission medium, with high transmission rate, and supports a variety of services such as data, voice, and image, which is suitable for customers with high security requirements such as finance and insurance.

PCM SDH dedicated line: It uses pulse code modulation or synchronous digital layer as the transmission medium, which can provide digital data dedicated line services from 2M to 155M rate, as well as other services such as voice and image, which is suitable for customers with high requirements for data transmission rate.

Optical fiber dedicated line: using optical fiber as the transmission medium, the transmission distance is long, the speed is fast, the loss is low, the anti-interference ability is strong, can provide 10Mbps, 100Mbps, 1000Mbps high-speed broadband, suitable for group users and intelligent communities, hotels, business buildings, campus networks and other high-speed access to the Internet.

International Private Line (IPLC): The use of international private leased circuits as the transmission medium, refers to the communication lines of comprehensive information services such as data and voice for the exclusive use of users, which can undertake the safe, stable, high-speed, and low-error rate transmission of large data volumes, and is suitable for companies with high-quality data and voice communication needs with overseas companies.

To put it simply, a private network line is like a private lane from your home to your destination, which only you can use and will not be affected by other vehicles, while a public network is like a congested public road with many vehicles to share and may encounter traffic jams, accidents, or violations.

Qiaochaishou network dedicated line refers to the network line used independently by an organization, which is equivalent to an independent local area network, and the purpose is to ensure the security of data transmission for mega chaos. The advantage of the network line is that it has good security and is not easy to leak data. However, the maintenance cost of the network leased line is high and requires professional personnel to manage it.

There are two main channels of filial piety and suspicion of network dedicated lines, as follows:

1. Physical dedicated channel: The physical dedicated channel is to lay a special line between the service provider and the user, and the line is only used independently by the user.

2. Virtual private channel: The virtual private channel is to reserve a certain bandwidth for users on the general channel, so that users can enjoy this part of the bandwidth exclusively. In addition, the user's data is encrypted to ensure the security of the user's data.

1. connect the network access equipment between the dedicated line user and the external public network, and make the pin punch described network access device and the special line user form a virtual local area network.

2. using the network connection combustion penetration equipment to bind and authenticate the dedicated line user, and the binding authentication may be carried out in the network access equipment, or may be carried out from the remote network equipment through the broadband access equipment.

The network line also includes steps to provide uniformly configured service quality assurance attributes for leased line users, and can assign addresses and verify the legitimacy of users under the Layer 2 virtual LAN leased line.

Network private line refers to the operator relying on the domestic backbone network and broadband metropolitan area network resources to provide private line access mode, for enterprises, ** and other customers with higher data access requirements to provide more high-quality and professional services.

It is a user-exclusive, high-speed, secure, and stable communication line, which can support a variety of services such as data mountain, voice, and image, and meet the high standards of network quality and performance required by users.

For example, if an enterprise has two branches in Beijing and Shanghai, and needs to frequently conduct a large amount of data and business exchanges such as ** conferences, then they can apply to the operator for a network line to connect the two branches. In this way, they can enjoy the advantages of exclusive bandwidth, low latency, and high security, without being affected by the traffic of other users on the public Internet.