2-phone_ATM_GSM_Internet_signalling课件.ppt

Part 1: Common network/protocol functions ;Signaling;Examples;Telephone Network;Central Office and Local Loop;PBX;Long-haul network;How is voice transmitted ?;The digital phone network;Analog local loop / digital network;All digital network;Digital Multiplexing;Addressing and Routing;Telephone network: services;Telephone network: AIN;Telephone network: circuit-switched voice trunks (data plane) ;Telephone network: data and control planes ;SS7: telephone signaling network ;Signaling System 7: telephone network signaling;Signaling System 7: telephone network;Example: signaling a POTS call;Example: signaling a POTS call;Example: signaling a POTS call;Example: signaling a 800 ca11;Example: signaling a 800 ca11;Example: SS7 protocol stack;Signaling: discussion;Asynchronous Transfer Mode: ATM;ATM networks;ATM Layer: Virtual Channels;ATM Signaling: Q.2931;ATM Signaling: Q.2931;ATM Q.2931 Call Setup Signaling;ATM Q.2931 Call Release Signaling;ATM UNI Connection control messages;ATM Q.2931 Call Setup: Timers;ATM Q.2931 Call Release Signaling;PNNI Signaling:;ATM Signaling: Discussion;;Components of cellular network architecture;Cellular networks: the first hop;GSM: TDMA, FDMA structure;Components of cellular network architecture;Handling mobility in cellular networks;Public switched telephone network ;;;home network;home network;Signaling in the Internet;(Brief) detour into Internet Multicast;Joining a mcast group: 2-step process;Multicast Routing: Problem Statement;Example Mcast routing algorithm;RSVP Design Goals;RSVP: does not…;RSVP: overview of operation;Path msgs: RSVP sender-to-network signaling;RSVP: simple audio conference;in out;in out;in out;reservation msgs: receiver-to-network signaling;RSVP: receiver reservation example 1;in out;in out;RSVP: example 2;RSVP: example 2;RSVP: example 2;RSVP: soft-state;RSVP: soft-state;The many uses of reservation/path refresh;RSVP: reflections;Signaling Discussion: SS7 vs Q.2931 vs RSVP ;SIP: Session Initiation Protocol [RFC 3261]