What is the core technology of vswitches?

The soft switch technology is one of the most popular technologies in the current technology circle. Nowadays, many switches can provide high-speed connection ports that support fast Ethernet or FDDI. I hope this article will provide you with relevant information.

The true meaning of the next generation network requires both the innovation and prosperity of smart endpoint services and the scale-up management of its systems. The difficulties discussed in the next-generation network architecture system are how to comprehensively balance multiple technologies. I think that the current technology is mature and developing.

Software Switches Based on ITU-H.323 protocol, IETF-SIP protocol and MGCP/H.248 protocol are the implementation methods of IP telephone and next generation network. These three technologies have their own differences and expertise and need to complement each other. The best strategy is to adopt a network architecture system and implementation means that integrate the three technologies.

The access and aggregation nodes of the most popular and basic IP phone service in the next generation network rely mainly on the soft switch technology characterized by MGCP/H248 protocol; the integration of multimedia and end-to-end services in the next generation network may depend mainly on ITU-H.323 protocol and IETF-SIP protocol technology;

The next-generation network architecture is determined by the H.323 and SIP network systems. In fact, as many scholars have already pointed out, the soft switch technology can also be seen as the result of smart gateway decomposition under the H.323 and SIP systems. In this way, the network architecture of the three technologies may be more clear.

Large-scale implementation of the IP telephone network with the architecture characteristics of the Next Generation Network System and its scalability, reliability and operability are an important part of the evolution towards the next generation network. Not only does the next-generation network require business practices that integrate the three technologies, including soft switch technology, H.323 technology, and SIP technology, many other problems related to the Operation Management of the Next Generation Network also need to be verified through the operation implementation of the IP telephone network.

Therefore, domestic telecom operators should first build an IP telephone network with a distributed structure according to business and market needs, and actively carry out IP telephone services to verify the operability and manageability of the Next Generation Network. Practice has proved that the efforts and contributions made by domestic telecom operators in exploring and operating various IP phone technologies over the past few years are the most significant milestones in the evolution towards the next generation network goal.

This integrated system structure is built on the distributed signal call processing architecture. It implements the call control function in a distributed manner, thus improving the call processing performance step by step. This architecture sends signal messages directly from the entry module to the ELE. Me module.

This eliminates the bottleneck of the control module and allows the system to flexibly execute a large number of internal control functions. Of course, Intelligent Modules can only query routing information for call requests through the control module. Intelligent interfaces can respond to call requests destined for an ATM switch.

The control module is used only when the destination is another ATM switch in the network. This system structure also takes into account that most call requests do not consult the routing protocol. The distributed call control processing architecture can greatly improve the scalability of the system. The cost is that distributed control requires extremely complex management of the call controller in the system, therefore, it is more difficult to implement than distributed signal processing.

In addition, because the control module continues to retain the system's source information, the interface module must report decisions on local resource information to the control module at any time, which further limits the call processing performance. The distributed call control system can process up to-calls per second. It is suitable for enterprise or ATM switches.

Assigning the path selection work to the interface module can further improve the system performance. Therefore, the control module is only used for switching the routing protocol layout. During each layout update, the control module updates the layout database data maintained by the interface module, and the routing determines the device to perform complex path computing for the given call request.

Layout updates are usually carried out cyclically or only when major changes occur. These updates do not bring about a lot of work. In addition, the layout aggregation technology can also expand the routing protocol to a larger network. In this system structure, the control module no longer processes path control. The distributed routing architecture can provide 1000 calls per second, making it an ideal choice for core or ATM switches in the WAN.

In order to implement the distributed routing and call architecture, researchers at the Bell laboratory used the ATLANTA chip of Lucent Technology to form an exchange hardware. In addition, they also used ERM devices that support API business control, the switch consists of an exchange matrix module, an interface module, and a control module. This technology is under development and is believed to be a major call architecture of the Next Generation Network.

Another popular term in the discussion on next-generation networks is "Softswitch is the core of next-generation networks ". I think it is worth further consideration. To sum up, the soft switch technology is one of the most important and critical speech service aggregation node technologies in the Next Generation Network. There is no doubt that we should pay special attention and attention to it. However, the technical features of vswitches do not provide the only and direct core network technology.

1. Let's talk about the "potential rules" of the security switch"
2. Summarize the market status of high-end Switches
3. Security risks of LAN switches
4. PythonAndroid analyzes the differences and relationships between layer-3 switches and other layer Switches
5. Measure the Power Consumption Characteristics of LAN switches.