Protocol-Independent Multicast

Protocol Independent Multicast (PIM) [4]: ​​Protocol Independent Multicast [4] is defined as a collection of multicast routing protocols used to route multicast IP traffic to various distribution points on LAN, WAN, and the Internet It is. PIM runs in two different modes, PIM-SP (sparse mode) and PIM-DM (high density mode) [7], in order to execute as well as other routing protocols (such as OSPF, BGP, and BGP) It has been. Routing operation Wait a moment. The characteristics of PIM are as follows [7], which provides loop free tree communication between two routers.

PBN policy based network PC PC PE provider edge PEP policy enforcement point PFS complete transfer secret PIB policy information base PIM - DM protocol independent multicast dense mode PIM - SM protocol independent multicast - sparse mode PKI key infrastructure PPS port protocol and service QoS Quality of Service RAM Random Access Memory RFC Comment Request (ie IETF Publication) RPC Remote Procedure Call RSA Rivest Shamir Addleman RTP Real Time Protocol SA Security Association SATS Small Aircraft Transport System SBU Confidential but High Classified SLA Service Level Agreement SMTP Simple Mail Transfer Protocol SNMP Simple Network Management Protocol SPD Security Policy Database SSE System Security Engineering SSH Secure Shell ) SWAP Size, Weight, and Power SYN Synchronization (bits) TCP Transmission Control Protocol TCSEC Trusted Computer System Evaluation Standard TFTP Normal File Transfer Protocol TLL Lifetime TLS Transport Layer Security TP Transport Layer Protocol TSIG DNS Key Transaction Authentication User Datagram Protocol V Version VPN Virtual Private Network WAN Wide Area Network

DOT / FAA / AR - 08/31 Air Transportation Aviation Research and Development Project Planning Office, Washington DC 20591

IP multicast provides a way to send a single media stream to a group of recipients on a computer network. The multicast protocol (usually the Internet group management protocol) is used to manage the delivery of multicast streams to recipient groups on the LAN. One of the challenges in deploying IP multicast is that routers and firewalls between LANs must be able to send packets to their destination. When an organization that provides content controls a network (ie, education, government agency, and intranet) between a server and a recipient, the streaming content may use multiple routing protocols such as protocol independent multicast It can be delivered to the LAN segment. For bulk distribution of content, multicast protocols require less energy and other resources, and widespread adoption of reliable multicast (such as broadcast) protocols and their prioritization as far as possible ecological and economic challenges .