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9 ip multicast, Ip multicast, Fig. 9.1 – Siemens S223 User Manual

Page 278: Igmp snooping configuration network, Fig. 9.2, Pim-sm configuration network

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UMN:CLI User Manual

SURPASS hiD 6615 S223/S323 R1.5

278 A50010-Y3-C150-2-7619

9 IP

Multicast

Traditional IP network provided unicast transmission a host to send packets to a single
host or broadcast transmission. But multicast provides group transmission a host to send
packets to a group of all hosts. In the multicast environment, multicast packets are deliv-
ered to a group by duplicating multicast packets.

Multicasting is divided into Layer 3 multicast routing and Layer 2 IGMP snooping. The hiD
6615 S323 supports PIM-SM/SSM of multicast routing, and V1, V2 and V3 of IGMP
snooping.

Fig. 9.1 shows the example of IGMP snooping configuration network. In Layer 2 network,
the hiD 6615 S223/S323 is configured only for IGMP Snooping.

hiX 5430

Layer 2 Network

Layer 3 Network

Multicast Server

PIM-SM

Set-top Box

Set-top Box

Multicast data

IGMP Join/Leave
message

IGMP Snooping

Fig. 9.1

IGMP Snooping Configuration Network

If the hiD 6615 S323 is installed within Layer 3 network, PIM-SM should be configured.
Below the hiD 6615 S223/S323, there is a switch that performs IGMP snooping function
for subscribers.

hiX 5430

Layer 2 Network

Layer 3 Network

Multicast Server

PIM-SM

Set-top Box

Set-top Box

Multicast data

IGMP Join/Leave

message

IGMP Snooping

RP

Fig. 9.2

PIM-SM Configuration Network

You can configure IGMP Snooping with PIM-SM as Fig. 9.3. If more than one port are on
the same interface and the hiD 6615 S323 is located in Layer 3 boundary, IGMP Snoop-

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