Multicast tutorial PDF - Garr

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MBGP—Capability Negotiation•RFC 2842•BGP routers establish BGP sessions through the OPENmessageOPEN message contains optional parametersBGP session is terminated if OPEN parameters are not recognised•MBGP peers use this procedure to determine if they supportMBGP and which AFIs and SAFIs support each oneIf there is no match, notification is sent and peering doesn’tcome upIf neighbor doesn’t include the capability parameters in open,session backs off and reopens with no capability parametersPeering comes up in unicast-only mode68
Summary•IGMP - Internet Group Management Protocol is used by hosts androuters to tell each other about group membership.•PIM-SM - Protocol Independent Multicast-Sparse Mode is used topropagate forwarding state between routers.•SSM - Source Specific Multicast utilizes a subset of PIM?s functionalityto guaranty source-only trees in the 232/8 range.•MBGP - Multiprotocol Border Gateway Protocol is used to exchangerouting information for interdomain RPF checking.•MSDP - Multicast Source Discovery Protocol is used to exchange ASMactive source information between RPs.69
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AgendaIntroductionMulticast address
Page 6:
A bit of historyIn 1995 the first m
Page 9 and 10:
The evolutionPIM Sparse mode(‏RP
Page 11 and 12:
PIM Dense Mode OverviewPruning Unwa
Page 13 and 14:
(S,G) notation• For every multica
Page 15 and 16:
Multicast Forwarding•Multicast Ro
Page 17 and 18: Multicast Forwarding•Multicast us
Page 19 and 20: Multicast Distribution TreesShortes
Page 21 and 22: Multicast Distribution Trees•Sour
Page 23 and 24: Multicast AddressingIP Multicast Gr
Page 25 and 26: Multicast AddressingGLOP addressesP
Page 27 and 28: •Introduction•Multicast address
Page 29 and 30: IGMPv2 Protocol Flow - Join a Group
Page 31 and 32: IGMPv2 Protocol Flow - Leave a Grou
Page 33 and 34: IGMP EnhancementsIGMP Version 2mult
Page 35 and 36: PIM-SMProtocol Independent Multicas
Page 37 and 38: PIM-SM Shared Tree JoinRP(*, G) Joi
Page 39 and 40: PIM-SM Sender RegistrationSourceRPT
Page 41 and 42: PIM-SM SPT SwitchoverSourceRPTraffi
Page 47 and 48: PIM-SSMNo shared treesNo register p
Page 49 and 50: PIM-SSMSourceRPData flows down the
Page 51 and 52: MSDPMulticast Source Discovery Prot
Page 53 and 54: MSDP Source Active MessagesInitial
Page 55 and 56: MSDP OverviewMSDP PeersDomain BRPDo
Page 57 and 58: MSDP Peers•MSDP establishes a nei
Page 59 and 60: MSDP with SSM - Unnecessary!ASM MSD
Page 61 and 62: MSDP Application: Anycast-RP•RFC
Page 63 and 64: Anycast-RPSrcRecRP1 - lo0X.X.X.X10.
Page 65 and 66: MBGP Overview•Multiprotocol Exten
Page 67: MBGP Overview•New multiprotocol a
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Multicast tutorial PDF - Garr

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