Gigabit Ethernet Switch User's Manual
Table Of Contents
- Chapter 1. Introduction
- Chapter 2. Installing the Switch
- Chapter 3. Switch Management
- Chapter 4. Console Interface
- 4.1 Login Screen
- 4.2 Main Menu
- 4.3 System Information Menu
- 4.4 Management Setup Menu
- 4.5 Device Control Menu
- 4.5.1 Setting the System Operation Mode
- 4.5.2 Layer 2 Menu
- 4.5.3 Using the Bridge Menu
- 4.5.4 Configuring Virtual LANs
- 4.5.5 Configuring IGMP Snooping
- 4.5.6 Configuring IP Settings
- 4.5.7 Security Menu
- 4.5.8 Jumbo Packet Configuration
- 4.6 Monitoring the Switch
- 4.6.1 Displaying Port Statistics
- 4.6.2 Layer 2 Address Tables
- 4.6.3 Displaying Bridge Information
- 4.6.4 Displaying VLAN Information
- 4.6.5 IP Multicast Registration Table
- 4.6.6 IP Address Table
- 4.7 Resetting the System
- 4.8 Logging Off the System
- Chapter 5. Web Interface
- 5.1 Web-Based Configuration and Monitoring
- 5.2 Navigating the Web Browser Interface
- 5.3 Panel Display
- 5.4 Main Menu
- 5.5 System Information Menu
- 5.6 Management Setup Menu
- 5.7 Device Control Menu
- 5.7.1 Layer 2 Menu
- 5.7.2 Using the Bridge Menu
- 5.7.3 Configuring Virtual LANs
- 5.7.4 Configuring IGMP Snooping
- 5.7.5 Configuring IP Settings
- 5.7.6 Configuring Security Filters
- 5.7.7 Jumbo Packet Configuration
- 5.8 Monitoring the Switch
- 5.9 Resetting the System
- Chapter 6.Advanced Topics
- Appendix A Troubleshooting
- Appendix B Pin Assignments
- GLOSSARY

WGS3 Layer 3 Switch User’s Manual
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4.5.5 Configuring IGMP Snooping
This option is displayed on Device Control Menu for Layer 2 mode of WGS3-2620 and on Protocol
Configuration Menu ( under Device Control Menu -> IP Menu) for Layer 3 mode of WGS3-2620 or
WGS3-404. Multicasting is used to support real-time applications such as video conferencing or
streaming audio. A multicast server does not have to establish a separate connection with each client. It
merely broadcasts its service to the network; and any hosts which want to receive the multicast register
with their local multicast switch/router. Although this approach reduces the network overhead required by
a multicast server, the broadcast traffic must be carefully pruned at every multicast switch/router it
passes through to ensure that traffic is only passed on to the hosts which subscribed to this service.
This switch uses IGMP (Internet Group Management Protocol) Snooping to monitor any attached hosts
which want to receive a specific multicast service. It looks up the IP Multicast Group used for this service,
and adds any port which received a similar request to that group.
You can use the IGMP Snooping Configuration screen to configure multicast filtering shown below.