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Without IGMP snooping, multicast traffic is treated in the same manner as broadcast
traffic, that is, it is forwarded to all ports. With IGMP snooping, multicast traffic of a
group is only forwarded to ports that are members of that group. IGMP snooping
generates no additional network traffic, allowing you to significantly reduce
multicast traffic passing through the IP-DSLAM. IGMP filtering allows a port to join
specific IGMP groups. This feature is useful for video service providers as they only
need to allow certain, but not all, channels (or multicast groups) on specific ports.
Setting up IGMP snooping/IGMP filtering
In this section, we will show you how to configure IGMP snooping and filtering on
the IES-5106(MSC GLC1320G-55). For details on configuring a video server
and the corresponding subscriber device, refer to the documentation that comes
with the devices.
*Note: we use IES-5106 (MSGLC1320G-55) as an example in the following
description.
*Note: We use ZyXEL FMG3024-D10A in this case
For this application example, the video server provides three channels:
- movie 1 in the 240.10.10.8 multicast group
- movie 2 in the 240.10.10.9 multicast group
- movie 3 in the 240.10.10.10 multicast group
If IGMP snooping is not enabled or if IGMP filtering is not enabled on the ports, all
IGMP Snooping IGMP
Filtering Application
4
FMG3024-D10A
INTERNET
IGMP Router
NB
Fiber
Copper
AV cable
Cat 5e/6
Vedio server
IES-5106
(GLC1320G-55)
Port 1
Ethernet port
Содержание GLC1320G-55
Страница 1: ...GLC1320G 55 Support Notes Edition 1...
Страница 3: ...3 Triple Play 23 Queue Rate Service 35...
Страница 14: ...14 d Check if the account is successfully created...
Страница 17: ...17 2 Verification FMG3024 D10A Check the status on the homepage The PPPoE connection was successful...
Страница 20: ...20 c Fill the Start IP and the End IP d Click the Apply button...
Страница 34: ...34...