Application Mobility Using the Domain Name System Fully Qualified Domain Name(FQDN) Support dynamic and secure updates
Application Mobility Using the Domain Name System ◼ Fully Qualified Domain Name (FQDN) ◼ Support dynamic and secure updates
DHCP DHCP DNS Client Server Server DHCP Request Including Client FQDN Option(81),S bit =0 Plus Domain Name DNS UPDATE Request/Response (PTR Record) DHCP Ack Including Client FQDN Option (81),S bit =0 Plus Domain Name DNS UPDATE Request/Response (A Record)
Authentication:Implemented using DNS security extensions. Registration:Implemented using dynamic DNS updates to PTR and A records by hosts and/or DHCP servers. Rendezvous service:Implemented using the FQDN-to-IP address mapping service provided by DNS
Application Mobility Using SIP ■RFC3261 an application layer control protocol that provides signaling for the creation, termination,and modification of sessions ■VOIP应用
Application Mobility Using SIP ◼ RFC3261 an application layer control protocol that provides signaling for the creation, termination, and modification of sessions ◼ VOIP应用
a generic session initiation framework rather than a structured method and protocol for session instantiation and control Session Description Protocol the detailed session parameters are agreed between two SIP endpoints Real Time Protocol(RTP) the actual media session is transported
◼ a generic session initiation framework rather than a structured method and protocol for session instantiation and control ◼ Session Description Protocol the detailed session parameters are agreed between two SIP endpoints ◼ Real Time Protocol (RTP) the actual media session is transported