Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Computer security wikipedia , lookup
Recursive InterNetwork Architecture (RINA) wikipedia , lookup
Wireless security wikipedia , lookup
Computer network wikipedia , lookup
Zero-configuration networking wikipedia , lookup
Distributed firewall wikipedia , lookup
Network tap wikipedia , lookup
Cracking of wireless networks wikipedia , lookup
Piggybacking (Internet access) wikipedia , lookup
List of wireless community networks by region wikipedia , lookup
Topic 1: Advantages/Disadvantages of an IP Based Aerial Network Organization: Harris Government Communication Systems Division Panel Member: Keith Olds and/or Steve Von Edwins Address: MS Ren 11-F; PO Box 37, Melbourne, FL 32902-0037 Email: [email protected] Fax: 321-729-7675 Phone: 321 729-3597 Abstract: We at Harris believe there is no practical alternative to an IP-based aerial network. The primary reason is the huge investment in IP technologies, hardware and software that has been made and is continuing. IP has advantages such as: IP standards exist and are universally accepted and deployed Non-recurring investments have been and continue to be large There is a large installed base with long term commitments to IP IP has proven to be very flexible since it was designed to allow non-compatible networks to communicate. Among IP’s disadvantages are: IP technology is optimized for wired networks. It is wasteful of communications bandwidth having huge overhead, presenting serious challenges when used with wireless Physical Layers. IP network security is complex. IP networks were designed to be open and universally accessible. We are now attempting to apply them in networks that must be closed and are subject to attack. IP is datagram based which presents challenges when used with real-time and streaming applications. The largest challenges will be in the areas of Information Assurance and managing RF frequency resources. In spite of the challenges, IP based networks have been proven to be effective and represent the universal standard for modern networks. Harris is concerned that the concept of a “single integrated network security and management system” for the DoD is intractable. History teaches that systems fail when tasked to provide universal solutions to large problems. Recent history in the DoD communication world offers good examples. Technical risks and challenges are difficult. However, philosophy differences among the services, politics, cost, information assurance, and CONOPS rooted problems are likely to prove more difficult. We are concerned the Service Oriented Architectures “craze” will carry an overhead burden that could prevent an aerial network from meeting mission needs before the network is deployed. Harris believes that a more practical approach exploits the autonomy and flexibility available with modern processing to allow multiple co-existing management domains. One advantage of IP networks is they can be segmented. Networks can take full advantage of IP and not be integrated into one universally managed network. Emerging network management architectures that rely on remote, policy-based situational management and local autonomy should be more tractable than an all encompassing manager. Service specific networks can be managed apart from the other services. The complexity and impracticality of a single aerial network can be avoided. The problem is complicated by extending a single network to the tactical edge. The number of platforms (aircraft, net enabled weapons, ground vehicles, individual soldiers) is huge, network topology is constantly changing, and resources are constantly changing. Information assurance problems are compounded by Multiple Independent Levels of Security, uncleared personnel using the network in hostile territory, developing integrated security policies and procedures, etc. In summary, IP based aerial networks offer huge technological and cost advantages. However, choosing to implement a single network for all services may be a flawed approach. Steve Von Edwins Airborne Battlespace Networks Harris Government Communication Systems 321 729-3597 voice 321 795-5734 cell [email protected]