Corporate Information and Computing Network, Which Was Developed for the Aeronautics Scientific and Technical Company Named After O. K. Antonov

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Corporate Information and Computing Network, Which Was Developed for the Aeronautics Scientific and Technical Company Named After O. K. Antonov

Goals of the Project

There were several special requirements among the provisions of Preliminary Specifications on development of the Antonov ASTC's Corporate Information and Computing Network. Basic special requirements were formulated as follows: to ensure

  • an uninterruptible operation of the Network even if certain components of the Network would be out of action;
  • a certain level of secrecy and protection against unauthorized access to the Network;
  • a possibility for management of information flows;
  • an availability of powerful subsystem for management of the Network;
  • a utilization of such information transfer technology, which would make it possible further planned development of the Network in future without making substantial investments;

In addition, special requirements to the Project have included requirements concerning implementation of new software products, which would make it possible to ensure an absolutely automatic process of development of new products (that is, aircraft).

Description of the Solution

The solution, which was implemented in the course of building of the Information and Computing Network (ICN), is based on a hierarchical approach that is called as a "multilevel" design.

A "multilevel" design of the campus Network consists of several modular buildings, which are connected with each other with the help of a campus backbone line.

This backbone line includes softswitches and other connections within the Network hub, through which the entire data flow is transferred from servers to users' workstations. Designers have made a choice to the benefit of Gigabit Ethernet backbone technology due to many factors. Basic reasons to make such a choice were as follows: possibility of widening of the bandwidth within the Network backbone line (at the expense of utilization of Gigabit EtherChannel technology), building of a universal network infrastructure for transfer of various information (electronic data, voice, and video information), as well as possibility of operation in the media of virtual local area networks (VLANs). The softswitches, which form a common campus backbone line, are connected with each other with the help of EtherChannel technology, which makes it possible to increase traffic capacity and reliability of the backbone line.

 

Equipment that Was Installed

Catalyst 6509 equipment (manufactured by Cisco Systems) is used as a central equipment of Antonov ASTC corporate computing network in order to form Gigabit Ethernet backbone line. Catalyst 4006 equipment (manufactured by Cisco Systems) is used as softswitches of the distribution layer of the Network. Catalyst 4006 equipment performs a role of routers at the level 3; they ensure transfer of information between workstations and the servers, which belong to different virtual local area networks (VLAN). Softswitches of the distribution layer of the Network form a fully dual-redundant system of connections of servers within Antonov ASTC server system, as well as within the softswitches in the Network access layer.

In addition, each switchboard has certain redundant components, for example, power sources. All these redundant components are intended in order to ensure an uninterruptible operation of Antonov ASTC corporate computing network. An access level of users to Antonov ASTC corporate computing network is realized with the help of Catalyst 2980G level 2 softswitches (manufactured by Cisco Systems). Softswitches at the level of access to the Network provide each user with 100 Mbps dedicated bandwidth.

 

Virtual Local Area Networks

One of the specific features of the implemented Project is utilization of the technology, which is based on virtual local area networks (VLANs); this technology makes it possible to subdivide the corporate computing network into many logical subnetworks.

Such subdivision of Antonov ASTC corporate computing network into many virtual networks (VLAN) has made it possible to:

  • improve efficiency of utilization of the bandwidth at the expense of division of the network into many broadcast domains.
  • increase safety within the network — no information from any virtual network (VLAN) can not be transferred to another virtual network without a routing process at the third level.
  • utilize dynamic routing protocols in order to balance traffic within the Network and ensure a quick convergence within the Network in the case of changes.

Antonov ASTC server complex was made with the help of the equipment manufactured by Hewlett-Packard Company.

The server complex includes: servers and server clusters on the basis of RISC processors (HP-UX operating system), as well as servers on the basis of Intel platform (Windows 2000 Server operating system). In order to ensure an additional redundancy, this server complex is installed in two basic server halls. Servers on the basis of RISC processors (HP-UX operating system) are connected with data arrays through fiber optics lines with the help of Fiber Channel technology, which was developed by Hewlett-Packard Company.

Each server of Antonov ASTC server complex is connected to Antonov ASTC corporate computing network with the help of two network adapters (dual-home Gigabit Ethernet connection). One of these network adapters may be in an active state, while the other is in a hot standby mode. Management of the Network, which was proposed, is based on the software, which was developed by Cisco Systems, Inc. This system ensures various possibilities for configuring devices, efficient searching of faults, as well as for managing the capacity of the system. Hardware and software platforms of the Network management system are based on Hewlett Packard workstations and servers (HP-UX 11 operating system).

CiscoWorks2000 set of application programs is used as the Network management software, monitoring programs and safety programs within Antonov ASTC corporate computing network. Structured cable system (SCS) of Antonov ASTC corporate computing network is made in a strict correspondence with the theory of SCS building; it is one of the largest systems in the country (over 2,500 ports). There are special premises in the buildings, where cable distribution frames are installed: separate distribution frames for buildings and for workgroups (stores or sections of a building). Backbone cable subsystem of a campus connects distribution frames of all campus buildings through fiber optic cables. Vertical cable subsystem, which connects distribution frames of a certain building (BD) with distribution frames of workgroups (FD), is made with the help of fiber optic cables that are laid down within a building. Horizontal cable subsystem connects distribution frames of workgroups with users' telecommunication receptacles. This subsystem is made with the help of 5 Category cable ("protected twisted pair").

Result

In accordance with results of operation of the System, a special document was prepared and issued — "SCS Passport". This document represents results of testing of all connections, SCS topology, information on marking of SCS components, as well as recommendations concerning SCS operation.

On completion of the second stage of building of Antonov ASTC corporate computing network the result is as follows: a simple in management, easily-extensible, reliable, and protected network was built, architecture of which would be utilized in future.

Antonov ASTC corporate computing network is one of the best projects of PrioCom Corp. for the sphere of industrial enterprises. 

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