Siemens S223 User Manual

UMN:CLI                                                                                                                                                              User  Manual 

SURPASS hiD 6615 S223/S323 R1.5 

278                                                                         A50010-Y3-C150-2-7619 

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. 

PIM-SM

Set-top Box

Set-top Box

Multicast data

IGMP Join/Leave 
message

 

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. 

Set-top Box

Set-top Box

Multicast data

IGMP Join/Leave 

message

IGMP Snooping

 

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-