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Presentation_ID
32
NP0
PHY
NP2
PHY
NP3
PHY
NP1
PHY
FIA
CPU
NP0PHY
NP2PHY
NP3PHY
NP1PHY
FIA
CPU
NP0
PHY
NP2
PHY
NP3
PHY
NP1
PHY
FIA
CPU
LC2
LC3
LC1
IGMP joins
Multicast
Source
IGMP joins
Switch
Fabric
1
FGID
2
3
2
MGID
3
Fabric Replication
replicate single copy to
LCs which receive IGMP
join, based on FGID table
in switch fabric
FIA Replication replicate
single copy to NPs which
receive IGMP join, based on
MGID table in FIA
NP Replication replicate
copy per receiver based on
multicast FIB table
1 2 3
MFIB
Intelligent Multicast Replication
Switch Fabric and Egress LC Replication
FGID – Fabric Group ID
MGID – Multicast Group ID
MFIB – Multicast Forwarding Information Base
Efficiency
Line rate
Scalable
Simple
3
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