logging in or signing up atm aSGuest1933 Download Post to : URL : Related Presentations : Let's Connect Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 1348 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: October 27, 2008 This Presentation is Public Favorites: 0 Presentation Description hi Comments Posting comment... Premium member Presentation Transcript Slide 1: 1 A SEMINAR REPORT ON ASYNCHRONOUS TRANSFER MODE(ATM) Presented By: IQxplorer INTRODUCTION : 2 INTRODUCTION High performance, cell-oriented switching and multiplexing technology Utilizes fixed-length packets to carry different types of traffic Helps in efficient multimedia applications, high-speed LAN connections and used in broad range of networking devices OVERVIEW : 3 OVERVIEW BENEFITS OF ATM : 4 BENEFITS OF ATM high performance via hardware switching dynamic bandwidth for bursty traffic class-of-service support for multimedia scalability in speed and network size common LAN/WAN architecture opportunities for simplification via VC architecture international standards compliance ATM CELL HEADER FORMAT : 5 ATM CELL HEADER FORMAT ATM REFERENCE MODEL : 6 ATM REFERENCE MODEL ATM ADDRESS FORMAT : 7 ATM ADDRESS FORMAT ATM SERVICE CLASSES : 8 ATM SERVICE CLASSES constant bit rate (CBR) variable bit rate–non-real time (VBR–NRT) variable bit rate–real time (VBR–RT) available bit rate (ABR) unspecified bit rate (UBR) ATM TECHNICAL PARAMETERS : 9 ATM TECHNICAL PARAMETERS cell loss ratio (CLR) cell transfer delay (CTD) cell delay variation (CDV) peak cell rate (PCR) burst tolerance (BT) sustained cell rate (SCR) ATM STANDARDS : 10 ATM STANDARDS A cohesive set of specifications that provide a stable ATM framework. Provide the end-to-end service definitions An important ATM standard is interworking between ATM and frame relay Two ATM networking standards 1)broadband intercarrier interface (B–ICI) 2)public network-to-network interface (P–NNI) DATA INSERTION SCHEMES : 11 DATA INSERTION SCHEMES RFC1483-specifies how interrouter traffic is encapsulated into ATM LANEMPOA- support dynamic use of ATM SVCs voice and video adaptation schemes-for efficient traffic that no natural breaks, such as a circuit carrying bits at a fixed rate ATM LAN EMULATION(LANE) : 12 ATM LAN EMULATION(LANE) LANE components 1)LANE clients 2)LANE servers VIDEO OVER ATM : 13 VIDEO OVER ATM Handled by VBR–RT VCs using AAL–5 for MPEG2 on ATM for video-on-demand applications MPEG2 coding can result in two modes: program streams—variable-length packets carrying single or multiple programs transport streams—188-byte packets that contain multiple programs Time stamps are inserted into MPEG2 packets during the encoding and multiplexing process to make better use of networking resources. VOICE OVER ATM : 14 VOICE OVER ATM VBR–RT connections is used over ATM which uses silence period. Various dynamic compression techniques are used to free bandwidth and alleviate congestion A further enhancement is to support voice switching over SVCs which interprets PBX (private branch exchange) signaling and routing voice calls to the appropriate destination PBX NETWORK TRAFFIC MANAGEMENT : 15 NETWORK TRAFFIC MANAGEMENT objectives :To deliver quality-of-service (QoS) for multimedia applications and provide overall optimization of network resources. categorized into three distinct elements nodal-level controls that operate in real time network-level controls operate in near real time network engineering capabilities operating in non real time ATM APPLICATIONS : 16 ATM APPLICATIONS ATM AND IP INTERWORKING : 17 ATM AND IP INTERWORKING ATM and IP offer: Scalability, traffic engineering, service differentiation, high availability, value-added applications such as Virtual Private Networks (VPNs) Some specifications of ATM and IP Multi-Protocol over ATM (MPOA) as addition to LAN Emulation (LANE) Additions to ATM's superior routing protocol PNNI adoption of Frame-based ATM over Sonet/SDH (FAST) CONCLUSION : 18 CONCLUSION ATM technology is the only technology that can guarantee a certain and predefined quality of service. The growth of the Internet, need for broadband access and e-commerce are spurring the need for a reliable, flexible, scalable, predictable, versatile transport system and that is given by ATM Technology. For voice, video, data and images together, the next generation network depends on ATM. Slide 19: 19 THANK YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.