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IGMP (RFC1112)Operation[2] Point-to-pointMR1(192.251.39.1)MR2(192.251.39.11)MH1(192.251.39.23)UH1UH21) IGMP Query message ; MR1 224.0.0.1(all_hosts)TTL=1,IGMP_group_addr=0,dst_IP_addr=224.0.0.1 (all_hosts)src_IP_addr=192.251.39.1 (MR1)2) MR2/MH1 IGMP Query messsageMR2MH1“”3-1) IGMP Report message ; MR2 224.1.2.3 (group address)TTL=1IGMP_groupo_addr=224.1.2.3 ( group_address)dst_IP_addr=224.1.2.3 ( group_address)src_IP_addr=192.251.39.11 (MR2)3-2) IGMP Report message ; MH1 224.1.2.3 (group address)TTL=1IGMP_groupo_addr=224.1.2.3 ( group_address)dst_IP_addr=224.1.2.3 ( group_address)src_IP_addr=192.251.39.23 (MH1)4) goto step 1)32
UH2IGMP (RFC1112)OperationMR1To Multicast Source Node192.251.39.1UH1MH1192.251.39.23IGMP QueryIGMP ReportMR2192.251.102.1192.251.39.11TTL=1,IGMP group addr=0dest_IP_addr=224.0.0.1src_IP_addr=192.251.102.1UH3MH2192.251.102.18MH3192.251.102.34IGMP reportTTL=1,IGMP group addr=224.1.2.3dest_IP_addr=224.1.2.3src_IP_addr=192.251.102.1833
Page 1 and 2: Multicast (Broadcast)(1) i.e., O(N)
Page 3 and 4: Multicast (Broadcast) Addresses(1)
Page 5 and 6: IPv4 Well-Known Multicast Addresses
Page 7 and 8: Multicast Packet Transmissionover E
Page 9 and 10: Ethernet Multicast/Broadcast Addres
Page 11 and 12: Multicast Routing Protocols[Multica
Page 13 and 14: Flooding- Same as in OSPF -AD(1)(3)
Page 15 and 16: Spanning Tree- Same as in IEEE802.1
Page 17 and 18: Reverse-Path Forwarding (RPF)AD(1)
Page 19 and 20: RPF plus PruningNode D PruneNode B
Page 21 and 22: Multicast Routing Protocol/ Routing
Page 23 and 24: SS(1)(1)SH(2)(2)C(2)H(3)R1C(2) (4)(
Page 25 and 26: DVMRPMOSPFPIM-DMPIM-SMCBT 25
Page 27 and 28: (SSM)• SSM(Source Specific Multic
Page 29 and 30: IGMP (RFC1112) Message Format Ver.
Page 31: IGMP (RFC1112)Operation[1] Ethernet
Page 35 and 36: tcpdumpIGMP (RFC1112)Operation1 0.0
Page 37 and 38: - - - - - 37
Page 39 and 40: • - • - • - • - • - 39
Page 41 and 42: (2) • - (Aggregate)• NACK(Nega
Page 43 and 44: (4) - -• (e.g.,RSVP)- NACK- ()-
Page 45 and 46: (5) : • - 100 ( )- PLR=10**(-6)=
Page 47 and 48: SenderB1 2 3 4 5 A54R13211 2 3 4 A
Page 49 and 50: Packet Error or Loss Probability+ F

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