Accession Number : ADA321957

Title :   Internetworking: Implementation of Multicasting and MBone over Frame Relay Networks.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Erdogan, Ridvan

PDF Url : ADA321957

Report Date : SEP 1996

Pagination or Media Count : 147

Abstract : The major problems addressed by this thesis research are how to implement multicast over the Monterey BayNet to enable live audio/video for distance learning, how to safely integrate regional Frame Relay multicast with the global MBone, and how to monitor multicast connectivity over the Monterey BayNet. To implement multicast and MBone over the Monterey BayNet without using dedicated multicast servers, we enabled Protocol Independent Multicast (PIM) protocol on already-installed Frame-Relay-capable routers. By implementing multicast over Monterey BayNet, we show that the current MBone software provides the same performance that it provides on regular Internet connections even on low-speed (128Kbps) Frame Relay network connections and low-cost personal computers. In order to control the scope of the regional multicast and to safely integrate regional Frame Relay multicast with the global MBone, we used administratively controlled multicast group addresses (224.0.1.20) in addition to the use of time-to-live (TTL) control mechanism. This eliminates global duplication of multicast packet delivery. Public-domain multicast monitoring tools are used to monitor the multicast connectivity through internetworks. Since these tools are available only to UNIX-based platforms, they cannot be used by the regional sites that mostly have windows and Macintosh platforms. We developed Web-accessible multicast monitoring pages in order to meet the multicast monitoring needs of the regional sites. Participating sites are now able to monitor regional multicast connectivity by accessing these pages, which permits remote problem diagnosis. That was previously impossible. Finally we synopsize firewall requirements for secure and effective use of multicast.

Descriptors :   *DISTRIBUTED DATA PROCESSING, *WIDE AREA NETWORKS, SOFTWARE ENGINEERING, INTEGRATED SYSTEMS, DATA MANAGEMENT, COMPUTER GATEWAYS, DATA PROCESSING SECURITY, COMPUTER COMMUNICATIONS, MONITORING, THESES, OPERATING SYSTEMS(COMPUTERS), COMPUTER FILES, VIDEO SIGNALS, INTERNET, PACKET SWITCHING.

Subject Categories : Computer Systems
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE