Satellite communications for corporate networks. Corporate Satellite Internet, Corporate Network Tariffs Construction of an Effective Corporate Satellite Communication Network

Altegrosky's corporate network allows you to effectively combine geographically remote units and branches of companies and provide high-quality communication at high speeds. Nethelcom offers corporate clients services for the organization of satellite corporate communication networks for transmission of data and voice traffic, high-speed access to the Internet and long-distance / international telephone communication. We will organize the connection of the central office of your company with remote branches anywhere in Russia, while the cost of the solution will not depend on the distance between the connecting points! !

Corporate networks are:

Full independence from ground-based infrastructure and a short time of network deployment;

Easy integrability in the Customer's corporate telecommunication infrastructure already created;

High level of protection and security of information;

Multifunction of equipment used;

The possibility of increasing the total bandwidth of the corporate network and the possibility of its dynamic redistribution between individual nodes or directions;

Opportunity remote control corporate network directly from the office of the customer;

A wide range of services and client applications;

One-Stop Shopping - the presence of only one artist - Nethelecom, which is responsible for the entire cycle of work on the creation and operation of the satellite corporate network;

Provision of comprehensive solutions "turnkey";

The possibility of minimizing investment and operating costs.

In addition to traditional services, Nethelecom specialists offer solutions on the organization of video conferencing sessions in the corporate network of a video conferencing, circular distribution of service information and software, database updating, organization of distance learning staff and business television.

Quality of services Altegrosky is guaranteed by the use of technologies and equipment from the leading global technological solutions in the field of broadband satellite systems - Hughes Network Systems.

The high quality of corporate network service provides highly qualified specialists Nethelecom, which have a large practical experience of operating satellite networks and past training in the United States. The network management center (TSUS) and customer support service are in MO in the center of the cosmic link "Bear Lakes".

Satellite Corporate Networks Designed through Broadband Satellite Network Altegrosky are divided into two groups:

Without the use of land channels

Using ground channels

Corporate networks without the use of ground communication channels

Such networks are oriented, first of all, to transfer data and voice traffic. In all points of the Customer's corporate network, small satellite terminals are installed, which provide data transmission at a speed of 256 ... 819 kbps between terminals with relay through the Tsus Altegrosky. This network configuration is optimal for networks with low traffic and applications, non-critical to the delay in the channel, which is depending on the file type 800-1200 milliseconds. The delay in telephone internal corporate conversations will be 600-700 milliseconds, while the quality of the telephony despite this delay will be high due to the fact that telephony in the Direcway satellite network is fully integrated into the satellite platform.

Corporate networks using terrestrial communication channels

These networks are focused on providing the maximum full spectrum of broadband services for corporate clients. All traffic from remote points of the Customer's corporate network, in which small-sized satellite terminals are installed, transmitted by satellite canals On the Tsus Altegrosky and then on the digital ground canal goes to the central office of the customer. Using the router, the data enroll on the server local network, and voice traffic - on office PBX.

Ground communication channel (speed 64, 256 or 2048 kbps or more) between the Altegrosky Tsus and the Customer's central office in Moscow or in any city of Russia allows:

Enlarge the speed of information transfer in the satellite corporate network (from 256 kbps to several megabits per second);

Reduce the delay time in the channel to 350-400 ms;

Provide high-quality telephone communication on the network with a delay of 300-350 ms;

Significantly expand the range of business applications and services supported by the corporate network.

Networkelecom pays great attention to security and information protection. Protection of information in the Altegrosky network is technologically integrated into the satellite access platform Hughesnet, has several front-line protection and is organized at all stages of passing data and voice traffic within the network.

The satellite corporate network can be deployed in the country in a few weeks, while the construction of terrestrial communication lines, if possible, is a more expensive solution, which requires several months to implement.

Satellite communications has the most important advantages necessary to build large-scale telecommunication networks. First, with its help you can quickly form network infrastructureencompassing a large territory and independent of the presence or state of ground communication channels. Secondly, use modern technologies Access to the resource of satellite repeaters and the possibility of delivering information to a practically unlimited number of consumers at the same time significantly reduces network operation costs. These advantages of satellite communications make it very attractive and highly efficient even in regions with well-developed terrestrial telecommunications. Moreover, at present, many companies with the territorial distributed structure are extremely interested in reducing the cost of communication services and are increasingly abandoning the public network services, preferring to create their own more economical satellite communications networks. The modern market of services and satellite communication systems is replete with a wide range of technological solutions for building this kind of networks, and the choice is suitable for your enterprise. satellite technology It becomes a very difficult task. How to properly approach her decision? Who to entrust the construction of the corporate network?

Topology

First of all, it is necessary to clearly formulate the telecommunicative needs of its company - after all, the efficiency of the future network depends largely on the correctly compiled technical task. It is necessary to determine the network topology - the scheme of compounds between its nodes, which are most often branches of the enterprise. It should be borne in mind that communication through the geostationary satellite introduces a tangible delay when the signal is spread, therefore, in some cases, it is extremely undesirable to use the "double jumps" of the signal doubling this delay. In addition, excess compounds often complicate the operation of the network and increase its cost.

In networks S. single Center Processing information, whose services are used by many remote branches, weakly interacting with each other, use the topology of the "Star" type. In such a network, the connection between the branches is carried out through the central node. In cases where the exchange of information between individual branches occurs, especially intensively, it is advisable to implement a mixed network topology, where these branches will be connected directly. Such topology can often be found in banking networks and production with centralized management and a wide network of regional branches, distributors or product suppliers. Regional subnets with their specific technological features are often formed in these networks.

In networks where the connection of all branches should be carried out with minimal delay time during signal transmission, complete topology should be implemented. At the same time, each network node will be able to install a direct connection with any other node. This topology is used in corporate networks with large and multidirectional telephone traffic, as well as in data transfer systems with random connections between their nodes and harsh requirements for temporary delays. The advantages of this topology are indisputable, but not in all cases its use is economically justified.

For each telecommunications service (telephone and facsimile communication or data transmission), it is very important to determine the optimal topology and technology of the satellite communications network and try to implement their supporting integrated communication system.

So, we decided on the network topology. Next, you need to evaluate the volumes of traffic transmitted by it - the task is quite complicated, especially for enterprises that are currently developing intensively and planned over time to fulfill the full re-equipment of its communications infrastructure. In such cases, it is recommended to use technologies that can develop "in the leg" with an increase in the needs of the enterprise, but it is still necessary to assess the volume of initial and promising traffic. To do this, you can go along the path of extrapolation data on the loading of existing communication channels (which include the sizes of typical transmitted messages, as well as the duration and frequency telephone conversations For a certain period of time), taking into account the planned growth of the number of network users. When calculating the load load, you need to use the traffic value in the "peak" clock when it is maximum. An important meaning is to account for changes in the volume of traffic depending on the direction of data transfer for each of the network channels, since using satellite technologies, you can create channels with asymmetric bandwidth. Knowing the requirements for permissible temporary delays for all types of network traffic, you can use the system of their priorities that increase the efficiency of network resource allocation.

Given the high importance of the task of predicting the magnitude of traffic on the network, it is recommended to entrust its decision to specialists with extensive experience in planning and operating such networks.

Any satellite communications network includes one or more repeater satellites through which the interaction of earth stations is interacted (ZS). Currently, satellites operating in the frequency ranges C (4/6 GHz) and Ku (11/14 GHz) were most widely used. As a rule, the satellites of the range from servicing a fairly large territory, and the satellites of the Ku range are less, but have a higher energy, which makes it possible to work with them to apply the SS with small-diameter antennas and low-power transmitters. The communication satellite is chosen on the basis of two criteria: the configuration of the service area (it should coincide with the geography of the corporate network) and the cost of the channel (including the cost of the resource required by the resource of the satellite repeater and ZS). Attention should be paid to the guaranteed service life of the selected satellite and fault statistics similar to it spacecraft.

Technologies

The composition of any CH includes radio frequency and channel-forming equipment. The first is an antenna and a transceiver that must match the type of selected satellite and ensure the operation of the channel-forming equipment. As a rule, these two components of the ZS are supplied complete.

The channel-forming equipment defines the principle of operation of the SS and the entire network. Currently, there are four main technologies for satellite networks. They all have their advantages and disadvantages, and none of them is universal. To improve the efficiency of work in many modern networks Successfully combined several technologies at the same time. The main difference between them is a way to use a satellite repeater resource. Consider these technologies.

• · SCPC (Single Channel Per Carrier) is actively used to build small networks with intensive traffic. Each CC implementing SCPC has a selected permanent segment of the satellite repeater capacitance and supports a permanent connection. The main advantage of this technology is that it ensures the necessary bandwidth of the satellite communication channel, and the main drawback is the absence of a dynamic redistribution of the repeater resource between network nodes.
• · Dama (Demand Assigned Multiple Access) provides a resource of a satellite repeater on demand. In networks with DAMA technology, the communication channel is allocated to the user only at the time of the communication session, which significantly saves the resources of the satellite repeater. The structure of the channel in this network is similar to the structure of the SCPC channel. In some implementations of DAMA technology, it is possible to establish compounds with different bandwidth for different communication sessions. Dama is optimal for creating telephone networks with a complete-link topology. The resource of the repeater is distributed by the central station of the network, which can be considered the main disadvantage of technology, since the functioning of the entire network depends on the state of one of this station.
• · TDMA (Time Division Multiple Access) provides multiple stations dynamic access to a common channel with a temporary separation. Unlike the DAMA technology with its sufficiently large connection time, this access is granted much faster. However, the TDMA network network is quite expensive, since any of these stations - even with the smallest traffic - should transmit data at a speed equal to the total bandwidth of the channel-shared channel. In TDMA networks, the central control station is usually absent.
• · TDM / TDMA (Time Division Multiplexing / Time Division Multiple Access) - Combined network technology with a star type topology. In the TDM / TDMA network, the Central ZS is associated with user stations using one or more fixed TDM channels (with time-multiplexing), and user stations access the central ZS through the TDMA channels. Since all user stations directly interact only with the central ZS, it becomes possible to use rather low-power stations, compensating for the lack of their energy using a large diameter antenna and a powerful transmitter on the central ZS. Due to such an imbalance of station parameters, it is possible to significantly reduce the cost of projects with a large number of user stations. The mandatory presence of a central ZS (which performs the function of the network concentrator) causes high demands on its readiness - after all, the functioning of the entire network depends on the state of this station.

On the TDM / TDMA network, the data transmitted between two any users of users is twice pass through the satellite repeater ("double jump"). At the same time, a significant (1-2 second) signal delay occurs, which makes this network unsuitable for the use of telecommunication applications sensitive to such delays.

Support for the above basic technologies is implemented in many modern hardware satellite communications. It often makes sense to apply several technologies in one network at the same time. For example, to build a large-scale corporate telecommunication infrastructure, you can recommend a combination of TDM / TDMA and DAMA technologies. The latter will provide telephone and facsimile communications, make a possible organization of audio and video conferencing, while using TDM / TDMA subnets can be transferred data.

Usually, to develop an optimal network solution, calculate the value of several options for building a network (based on one or more technologies) with different loading modes. If network development is planned, then for right choice Technologies (of course, from among those suitable for providing the necessary enterprise telecommunication services), in addition to the cost of implementing the initial network option, you should evaluate the total cost of ownership of one user station and changing this indicator with an increase in their number (see Figure). When building the graphs presented in the figure it was assumed that user stations are equipped with a single port for transmitting data with traffic 10 MB per month and one telephone port with a traffic of 1000 minutes per month, and the network has a "star" topology. As can be seen in the figure, on a network with 10 user stations, in the case of the use of TDM / TDMA technology, the total cost of ownership of one such station for three years will be a rather large figure - approximately $ 110,000, but with the growth of the network it will become very quickly reduced. . In small networks, SCPC or TDMA terminals are significantly cheaper, however, when the number of such terminals becomes more than 50, they are expensive than the TDM / TDMA user stations. It should be noted that the total cost of ownership of the station is very strongly affected by its download.

I want to give a few general advice on optimal choice Equipment and its manufacturers. First, it is worth analyzing the experience of other companies that already exploit the equipment that interests you at least one year. Secondly, collect as many information as possible about the manufacturer of the equipment, including the experience of its work on the market, the current financial situation, the quality of the support provided when planning and operating the network. Pay attention to the possibility of providing various communication services within the framework of a single hardware platform for a manufacturer, the degree of its integration with other platforms of the same manufacturer and the presence of certificates of compliance with Russian and international standards. The absence of these certificates can lead to full failure during the implementation of the network project.

Building

Many enterprises go along the way to create their own telecommunication units, establishing on their staff to develop, construction and further operation of the corporate network. At the same time, they receive full control over their networks and save on paying third-party services. However, it does not always have the opportunity to hire highly qualified personnel with knowledge of technologies that are supposed to be used in the future network, and additional costs for the preparation of such personnel and solve complex problems that often arise during the project can significantly exceed the saved amounts.

At the same time, it will require obtaining various permits for the operation of the network, and this is a rather time-consuming, costly and long-term procedure. It is easier, and often cheaper, use the services of a well-known operator, which has experience implementing similar projects and the necessary licenses. If the company wants to independently control and maintain its network, i.e., to be its operator, an external operator can be used only at the stages of the development and implementation of the network project. During this time, the company's own experts will be able to get the necessary preparations to then take on administration and maintenance of the entire network.

However, the company does not necessarily build at all own networkSince all communication services you need (with rental of user stations) can provide an operator that already exploits such an infrastructure. This will allow the enterprise to avoid financial risks associated with large investment in the design and construction of its network. If the network hold has a fundamental importance for him, then with time you can buy stations and when the network reaches a significant scale, and satellite technology applied to it will prove its effectiveness in terms of meeting the telecommunication needs of users, rent a satellite retransmission resource, build its own central ZS and Toggle users to it.

Exploitation

So, the network is built and put into operation. However, it is necessary to maintain it for successful work. The fact is that even the most reliable technique sometimes breaks. According to statistics, the maximum of faults falls on the first year of its operation. Naturally, manufacturers provide warranty repair Its equipment, but this is a long-term process - from the month or more. In this regard, the enterprise must have own warehouse Spare parts for all types of electronic equipment networks, and for this you need to highlight the room and hire people who will release these parts, store, transport them, etc. In addition, qualified specialists will be required, ready to go to the place of installation of faulty equipment with the shortest possible time. Spare parts I. measuring devices. It should be noted that the acquisition of measuring equipment and maintaining it in working condition require considerable costs.

For an enterprise, network maintenance is economically justified only with a large (more than 100) stations. That is why many corporate clients all over the world, including in Russia, prefer this to make operators who are already serviced by a large number of networks and have highly qualified service professionals, spare parts warehouse and the necessary measuring equipment.

In conclusion, I would like to give another advice: try when choosing a satellite technology for your enterprise to develop a unified concept of applying funds for communication within offices, basic network software and infrastructure for information exchange between branches. This approach will allow you to choose the optimal combination of communication technologies and will ensure the flexible functioning of your communication infrastructure for many years ahead.

full independence from ground infrastructure and a short time of deploying satellite network;

• a high level of security and security information that is technologically integrated into the HughesNet satellite access platform have several front-line protection and are organized at all stages of passing data and voice traffic within the network;
• easy integrability in the already created terrestrial telecommunication infrastructure of the Customer's corporate satellite network;
• multifunction of equipment used;
• the possibility of increasing the total bandwidth of the corporate network and the possibility of its dynamic redistribution between individual nodes or directions;
• the ability to remotely manage the corporate network directly from the office of the customer;
• a wide range of services and client applications;
• One-Stop Shopping - the presence of only one operator responsible for the entire cycle of work on the creation and operation of the satellite corporate network;
• provision of comprehensive solutions "turnkey";
• the possibility of minimizing investment and operating costs.

Currently, the need for large enterprises in creating branched corporate satellite networks, uniting central offices with branches in the country's regions, becomes increasingly relevant. Today not only stable data transmission is required, but also high quality telephone communications, Video conference services, Internet access. The extensive geography of our country and the lack of terrestrial communications in many of its regions lead to the only possible choice for solving these tasks - the use of satellite communications.

We offer services for the organization of corporate communication networks based on VSAT technology companies with remote divisions, while the cost of the solution does not depend on the distance between the branches!

Corporate networks without the use of ground communication channels

In all points of the corporate satellite network of the Customer, small-sized satellite terminals (VSAT) are installed, which provide data transmission at a speed of 819 ... 4000 kbps between terminals with relay through the Altegrosky Tsus.

Corporate networks using terrestrial communication channels

These networks are focused on providing the maximum full spectrum of broadband services for corporate clients. All traffic from remote points of the corporate network of the Customer, in which small-sized satellite terminals are installed, is transmitted by satellite channels to the Altegrosky Tsus and then on the digital ground channel is sent to the central office of the customer. Using the router, the data goes to the local network server, and voice traffic - for office PBX.

Tariffs for building corporate communication networks

The cost of projects for the organization of satellite corporate communication networks is calculated individually for each customer according to specific tasks and individual requirements.

The timely exchange of information within the participants of the team is an important component of the successful work of any company, regardless of its specifics and scale. Spread digital technology All industries contribute to the widespread introduction of corporate networks at different levels of business, from small firms to Holding.

Design and construction of the corporate network

The popularity of corporate networks is due to their advantages.

A decrease in system downtime in the case of hardware, software and technical errors involves a stable, continuous exchange of data between all participants.

Special programs and subtle settings for access rights to individual documents, functions and sections reduce the risk of information leakage, loss of confidential data. In addition, the violators are easy to track through software solutions.

The process of designing a corporate network includes combining local networks of departments within the company and creating a material and technical base for further planning, organizing and managing the profile activities of the enterprise.

Building a corporate network is based on a consistent and developed data architecture, platforms and applications, which ensures the exchange of information between users. Obtaining a functioning corporate network additionally implies the development of means of maintenance and protection of databases.

Companies engaged in corporate networks

Among the companies engaged in the creation of corporate networks, it is worth noting:

1. "Altegra Sky" is a Moscow company providing the entire range of services related to the creation of an internal network, from the compilation of fundamental architecture to commissioning work. The company is engaged in procurement, installation, commissioning of all necessary equipment and conducts training activities for its customers.
2. Universum is a Moscow provider of system integration services, creating safe local networks for wide profile enterprises. Specialization - installation and fine configuration of all functional elements of local networks and uninterrupted operation.
3. "Open technologies" - a provider of innovative solutions for data exchange inside the company. Specialization of the company - the creation of an optimal hierarchical structure that will ensure a steadily high speed of transmission of documents, images and multimedia using available server capacities.

Structure, architecture, enterprise network technology

The corporate network of the enterprise is characterized by two elements. LAN - Local computing networkproviding a stable exchange of necessary data and managing user access rights. To create it, hardware is the structured cable networks, then SCS. SCS is a telecommunications infrastructure - the set of all computer devices Companies between which is the exchange of data in real time.

Creating a corporate network consists of a choice:

• working group;
• simulation environment;
• software and hardware solutions for its creation;
• configuration and maintenance of finished architecture.

Building architecture and the choice of corporate network technology consists of several stages:

• selecting elementary objects included in the corporate data exchange network. As a rule, these are certain products, company services and information on them;
• the choice of functional, information and resource models for the future network. At this stage, the "internal logic" of the functioning of the future network is determined;
• further, on the basis of the already selected parameters, languages \u200b\u200band modeling methods that can solve the tasks are determined.

For example, in the formation of a corporate network of a small manufacturing company, the most accessible, non-propelled hardware modeling languages \u200b\u200bare applied. Conversely, creating an architecture for large companies with a wide profile of activities involves the use of powerful tools.

Corporate Local Networks on VPN, and Wi-Fi

VPN, or Virtual Private Network - option to create a virtual network inside an enterprise that uses the global network capabilities. The peculiarity of building such a network is the ability to access the Internet from anywhere in the world using a registered login and password. The decision is popular among IT companies, designer bureaus and other enterprises that hire employees for remote work. The disadvantage of this method of organizing a local network is the threat of unauthorized access and loss of user data.

Wi-Fi is a more technological and modern version of the creation of a corporate network that is not tied to hardware facilities and physical location of users. With the help of routers, access to the network for all employees is configured, while "getting" to the network can be on any device. The main advantage of Wi-Fi is easy integration and scaling of the created network for any number of users. With Wi-Fi, a dynamic redistribution of network bandwidth between individual nodes is carried out, depending on the level of the load used.

Corporate satellite network

Functioning this type The corporate local network is based on the use of Hub-satellite terminal capacities located in the network management centers. Each participant gets access to the network using an IP address and a transponder satellite transmitting a signal for other users.

This version of the organization of the corporate network allows:

• promptly connect new users to the existing network;
• remotely track its functioning, compliance with the security policy participants;
• guarantee data security and fine privacy configuration.

Satellite networks are the most stable, expensive and technological way to organize data exchange between employees of one structure.

Corporate multiservice network

The feature of the multiservice network is the possibility of transmitting textual, graphic, video and audio information using the same communication channels. As a rule, companies that provide services for building multiservice networks create turnkey solutions that allow you to transmit all the necessary types of information on IP addresses.

The technical plan creates separate subsystems intended to transmit certain types of information, while switching switches, routers and signal amplifiers are used to transmit data. Thus, the network is more stable, it moves well a high level of loads and allows peripheral devices As much as possible to contact the central server.

Corporate computing network

The computing network within the company is an adaptation of Internet technologies for use at the level of a separate company. The main purpose of building such networks is the sharing of information for internal corporate work: simultaneous access and editing documents, data exchange.

The functioning of the computing network involves the use operating systemcompatible with all connected equipment and software. It is important to ensure a rational distribution of information and provide employees with funds for planning and managing document flow.

The stage of building a corporate computing architecture involves constant communication with future users in order to identify their needs. Successfully built corporate computing network - a convenient software and hardware solution for use in daily operation.

Corporate social network

Creating a tool for transmitting messages and exchange information within one company gives employees the opportunity to maintain contact between real-time departments. At the same time, the basis of the product is the principle of operation of ordinary social networks with "trimmed" functionality, which does not distract the attention of workers from professional duties.

As a rule, access to corporate social network Employees of the company who are in the office or working remotely have, while discussing confidential working issues is made by protected communication protocols. This ensures the operational and secure communication of the company's departments without separation from the production and threat of data leakage.

Remote access to the corporate network

The basis remote access The capabilities of the corporate network is to configure the VPN protocol, which provides the use of the company servers by running the virtual machine.

The technology is based on the Terminal Server, free subnets and a protected guest network. From the user does not need to purchase and settings additional programs: Access via VPN is carried out in the Team Viewer application, compatible with all versions of Windows.

Such a solution is safe thanks to the possibility of a fine configuration of access rights to data stored on the company servers.

Corporate Network Security: Threats and Protection

Unauthorized access to data stored on corporate servers and threats of their loss are two main dangers from which the enterprise network needs to be protected.

For these purposes are used:

• antivirus systems;
• operational blocking of unauthorized access manually;
• thin vPN Setup Networks that cut the unauthorized users by entering a login and password.

Permanent protection is made using firewalltracking the functioning of all real-time network elements.