Siemens S323, S223 user manual Layer 2 Network, Layer 3 Network

UMN:CLI	User Manual
	SURPASS hiD 6615 S223/S323 R1.5

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.

Layer 2 Network Layer 3 Network

IGMP Join/Leave message

Multicast data

Set-top Box

Multicast Server

hiX 5430

Set-top Box

IGMP Snooping PIM-SM

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.

Layer 2 Network

IGMP Join/Leave	Set-top Box
message

Set-top Box

Layer 3 Network

Multicast data

RP

Multicast Server

hiX 5430

IGMP Snooping PIM-SM

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-

278 A50010-Y3-C150-2-7619