A course of intelligent Community Network construction

At present, the construction of intelligent community has gradually become a hot topic, and the construction of data network will become an important part of intelligent community construction. At the same time, the intelligent and networked residential district will bring new market opportunities to the developers of the community.

For intelligent community Construction, 3Com according to the different operating environment and user requirements, the following solutions are proposed:

Intelligent Community Ethernet Campus Network Solution

Intelligent community Wired Data Network Solution

Intelligent Community 10base-s Network Solution

Intelligent Community Ethernet Campus Network Solution

Scheme design

This scheme is based on local area network Ethernet technology, and constructs the campus network of Intelligent community. Add Ethernet network RJ45 in household home as an interface to access network, it can provide 10M or even 100M network speed.

Because of the use of Ethernet network technology, its basic network design and technology implementation is relatively simple and mature, mainly including the structure of the campus wiring and Ethernet design and implementation.

The following points should be paid attention to in the whole scheme design of physical network:

Because this scheme uses the local area network Ethernet technology, the network wiring structure and the cable selection design should be formulated according to the Ethernet design requirements.

The choice of Ethernet technology. can use Gigabit Gbps Ethernet, 100Mbps Ethernet, 10Mbps Ethernet technology.

Selection of network devices. Core network backbone switches as the core of the network, should have: high performance, with high-speed second/three-tier exchange capacity; Scalable, with slot-type chassis or stacking capability; Scalable and scalable, configurable high-end port density and large throughput expansion cards; Reliability, with redundant design, parts should be easy to replace. Network Edge Exchange or building users directly connected to the network, should have: flexibility, can provide a variety of fixed port number selection, can be stacked easy to expand access to the number of ports; Support Gigabit/Gigabit high-speed connection; High-performance Easy to use, Plug and Play; have certain network service quality and control ability.

Service Operation management Platform implementation. As a common operation network providing access service, community network should consider the problems of user authentication and billing as well as network security in Operation Service Management.

Thus, the design, construction and matching of network operation management platform in Community network design are very important.

Ethernet Park Solution (A)

Using Gigabit Ethernet or Fast Ethernet technology as a backbone, network core switches can be implemented using 3COM switch 4007/superstack II switch 9300-Gigabit backbone Solutions, or Superstack II switch 3300-Gigabit Backbone program for the switch.

Switch 4007--is suitable for the main core of the park in larger scale communities

It is suitable for the core switch of large and medium enterprise local area network. It uses a modular rack structure, both as a high-density gigabit network backbone for the local area network (54 gigabit ports) and as a high-density 10/100m access switch (providing 216 100M ports). On the basis of its high performance and high reliability, it also provides users with abundant flow control, priority access and service quality control, network security control and other functional means, and has good scalability.

Superstack II Switch 9300--is suitable for medium-scale communities with high bandwidth requirements for the backbone of the park. Provides 12 1000BASE-SX ports, or 10 1000base-sx+2 1000base-lx ports, or 12 1000BASE-LX ports. Its main features are high-performance, all ports of the switch can achieve full speed without blocking exchange, can provide 24Gbps switching capabilities.

The Superstack II Switch 3300--is suitable for small and medium sized communities in the campus hundred mega Backbone core. Provides 12 or 24 10/100m Ethernet adaptive ports, or 8 100BASE-FX fibre ports + 2 10/100m Ethernet adaptive ports. 10M Ethernet is used in each building, and the superstack II Switch 1100 switch can be used in the edge switch.

Superstack II Switch 1100 offers 12 or 24 10M Ethernet switching ports + 2 10/100m Ethernet adaptive ports.

The feature is that stackable--superstack II Switch 3300/1100 can mix 4 devices and provide 8Gbps of non-blocking exchange capacity; Extensible--superstack II Switch 3300/1100, each device has an extensible slot, can provide Gigabit Ethernet module (SX/LX/TX), 100base-fx fiber module, the third layer switching module and stacking module; Third-tier exchange is supported, which provides users with more flexible choice by extending the third-tier switching module; Excellent flow control ability, can guarantee in the system heavy load situation does not lose the package.

The Network Service Operation Management platform realizes the plan, the Intellectualized Community network construction, only has the high speed physical network is not enough, also needs the customer service operation Management, uses to form the formidable backstage support system, that is 3Com VBN Server service operation Management Server.

VBN Server Features:

User management based on PC MAC address and switch port. It can be combined with the switch, according to the user's specific situation, carry on the dynamic configuration of the virtual network, isolate the network data between the users, in order to guarantee the privacy of the network access of the individual of the home user fully.

Provide IP address management, DHCP user dynamic address assignment and NAT address translation function. The user PC can plug and Play regardless of its original IP address settings (dynamic/static address), without changing any settings. Convenient for users to access the Internet and simplify the maintenance of network users.

Provide mandatory user authentication function and community portal URL Automatic transfer function. User access network, can be immediately required for registration certification, and automatically connect the Community portal site. Users can easily browse community management information and other community services.

Provide user billing function. can provide detailed user billing information, operators can freely customize the billing management interface.

Internet service network system design. Providing Internet Access Service is one of the important functions of intelligent Community Network. How to ensure the security of the Community Network Service, effectively avoid the malicious access of the external network, how to improve the response speed of network access to provide better service, is an important issue for network operators to consider. From the point of view of operating cost, for different operating environment and network of different scale, what kind of scheme and product can get the best performance price ratio, also is the problem that the operator cannot ignore.

OfficeConnect Firewall and Superstack II Firewall firewall products provide data flow status tracking and monitoring level firewall capabilities, providing excellent cost-effective Internet access security solutions.

Superstack II Web Cache products can cache network information that is often accessed by local users, improve response speed and reduce the cost of Internet access for operators.

Superstack II Load Balance Server product, which can support multiple Internet Web servers to work in parallel, and balance network access traffic between them according to predetermined policies, and when a server fails, the network access traffic can be redistributed. Provide the reliability of network services.

OfficeConnect Internet server products, multifunctional Internet servers. It integrates the firewall, Web Cache, Web server, e-mail server, file transfer server and other Internet services in a network device, and manages, sets simple and flexible, and is an ideal solution for small community network Internet support Network systems.

Ethernet Park Solution (B)

Scheme A, mainly uses the VBN service operation Management Server and the switch close cooperation, guarantees the user individual network security. But it is also based on the traditional virtual network technology. To better address the security weaknesses of Ethernet as a broadband access technology, 3COM has introduced a series of Ethernet access switches. Each switch has two types of ports: a connected port (a parent switch or server), and a lower-connected port (connecting a subordinate switch or desktop PC). The Ethernet access switch can form the second-tier data transmission channel between the connecting port and the lower connecting port, which is similar to point-to-point. No two connected ports can communicate directly or listen to webcasts. The user desktop switch port can create a second-tier data channel similar to point-to-point through the network and exit points. In this way, the security barrier of Ethernet technology can be solved, the communication security is realized from the second level of network, and the personal privacy of Community broadband access users is fully ensured.

Compared with the usual switch and VLAN technology, the Ethernet access switch is used in this scheme to realize the security, efficiency, rapidity and simplicity of the installation operation by using the logic hardware to isolate the user data stream directly.

Using Ethernet technology to build community network, its advantage is that basic network construction is simple, mature and has high bandwidth. The relatively weak place is, because the Ethernet technology is designed for the local area network, it is not used for the public operation Network construction, its network security loophole is many, the service operation Management realizes the plan to be more complex. In addition, because the general Community Park network backbone using optical fiber, so the edge switch placed in each building, resulting in network equipment distribution management. At the same time, the equipment's power supply, temperature, humidity, dust degree and other operating environment guarantee also exist certain problems.

Intelligent community Wired Data Network Solution

Scheme design

This program is based on a traditional cable television network. The traditional service of CATV is to transmit the TV analog signal, to carry on the data service on its network, to build the data network, to increase the corresponding equipment, to modulate the digital signal to the corresponding frequency band of the TV cable. Among them, in the client need to add cable modem cable modem, in the area of the cable center needs to add cable modulation solution-turned-turn end equipment CMTS.

Cable TV network is one-way, can take two kinds of solution. One is a two-way network transformation, through the transformation of some lines and distributors, amplifiers, etc. to make the network into two-way network. Another way is to use the existing telephone network, the downlink channel is still unchanged, and the telephone dial-up channel as the uplink channel. From the standpoint of serving the user, it would be preferable to adopt the first option.

Cable Data Network Solutions

The cable modem head-end system uses the 3Com total Control 1000 telecommunication-level Multi Service Application platform system.

The Totalcontrol 1000 CMTS system has the following characteristics:

Reliability Configure redundant power supplies, all templates can be hot-pluggable, the MTBF value of up to 75,000 hours.

High density, high performance. Up to 7 sets of downlink channels can be supported within a rack. The distributed processing structure can fully guarantee the data transmission performance and provide strong support for resource critical applications such as multicast and VoIP.

Scalability and flexibility. The data transmission on the downlink channel is completed by different independent templates, and its proportional relationship can be flexibly and arbitrarily configured.

Multifunctional Both one-way cable transmission (telco-return) and two-way cable transmission can be implemented in one rack without additional remote dial-up devices.

Standard sex. Follow the DOCSIS 1.0 specification and can be upgraded to DOCSIS 1.1. It also supports the Euro-docsis standard, which can provide 8MHz frequency width and 5-65mhz uplink band support.

Cable modem adopts 3Com homeconnect External Cable modem,homeconnect PCI Telco return Cable modem.

HomeConnect Series cable modem is easy to install and easy to use. High performance, can provide downlink 10Mbps, uplink 3Mbps transmission performance.

The PAM and Bandwidth Manager Network service management software of 3Com company can realize the user's authentication and billing service, secure and effective IP address assignment and management, and provide the network security monitoring management, and provide the service quality guarantee for the users.

Internet service network system design. Providing Internet Access Service is one of the important functions of intelligent Community Network. How to ensure the security of the Community Network Service, effectively avoid the malicious access of the external network, how to improve the response speed of network access and provide better service, is an important problem for network operators to consider. 3Com provides the following products, for a variety of environments and scale of network requirements, to provide a wealth of solutions.

OfficeConnect Firewall and Superstack II Firewall firewall products, which provide data flow state tracking and monitoring level of firewall capabilities.

Superstack II Web Cache products can cache network information that is often accessed by local users, improve response speed and reduce the cost of Internet access for operators.

The Superstack II load Balance Server product can support multiple Internet Web servers to work in parallel, with load balancing network access traffic between them as scheduled.

OfficeConnect Internet server products, multifunctional Internet servers. It integrates firewalls, Webcache, WebServer, e-mail servers, file transfer servers, and many other Internet services in a network device, and is simple and flexible to manage and set up.

Intelligent Community 10base-s Network Solution

Scheme design

This network scheme is to use the existing telephone line wiring system to form a community network.

The 10base-s solution's system composition is very simple, mainly includes the client's network access unit NAU, the Center network centralism Unit NCU, the network switch and the telephone wiring system.

This type of networking does not require rewiring, and can still provide telephone service while transmitting network data. With the patented technology of 3Com, the traditional voice service and standard Ethernet data, that is, Full-duplex 10M data Service, can be transferred at the same time in a class to five types of twisted pair wires.

10base-s Network Solutions

Network access centralized Unit 3Com suitconnect 10base-s Network Central unit.

Provides 24 user's access at the head end, it separates the network data signal and the voice signal, the network data passes to the local area network, the voice information passes to the original telephone system.

Network Client modem 3Com suitconnect base-s Network access unit. Provides an existing telephone line connection port, an analog telephone connection port, a fax machine connection port and an Ethernet network 10base-t port. While providing 10M Full-duplex data transfer, voice services are still available.

Local Area network system (scheme a) 3Com superstack II Switch 3300/1100

3Com Superstack II Switch 3300 offers 12 or 24 10/100m Ethernet adaptive ports, or 8 100BASE-FX fibre ports + 2 10/100m Ethernet adaptive ports.

3Com Superstack II Switch 1100 provides 12 or 24 10M Ethernet switching ports. They are characterized by stackable--superstack II Switch 3300/1100, which can be stacked 4 devices and provide 8Gbps non-blocking switching; Extensible--superstack II Switch 3300/1100, each device has an extensible slot, which can provide Gigabit Ethernet module J, 100base-fx module, third layer switching module and stacking module; Third-tier switching is supported, and the third layer switching module is implemented to provide more flexible choice for users. Excellent flow control ability, can guarantee in the system heavy load situation does not lose the package.