D-Link DES-1228 user manual Configuration Igmp Snooping Configuration

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decisions by examining the contents of each frame’s Layer 2 MAC header.

IGMP snooping can help reduce cluttered traffic on the LAN. With IGMP snooping enabled globally, the Web-Smart Switch will forward multicast traffic only to connections that have group members attached.

Please note that IGMP will not alter or route IP multicast packets. To send IP multicast packets across subnetworks a multicast routing protocol will be necessary.

Figure 313 – Configuration > IGMP Snooping Configuration

By default, IGMP is Disabled. If Enabled, the IGMP Global Settings will need to be entered:

Query Interval (60-600 sec): The Query Interval is the interval between General Queries sent. By adjusting the Query Interval, the number of IGMP messages can increase or decrease; larger values cause IGMP Queries to be sent less often. Default is 125 seconds.

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Contents DES-1228 Table of Contents Page Iii Page Purpose Terms/UsageGigabit Ethernet Technology IntroductionSwitching Technology Fast Ethernet TechnologyFeatures IEEE802.1X Port-based Access ControlForwarding Mode Technical SpecificationsKey Components / Performance Switching Capacity Max. Forwarding RatePort Functions Sdram for CPUFlash Memory Front panel1000Mbps Copper Chassis DimensionsReset button on Ports in the frontEmission EMI and Safety Certifications Temperature Storage TemperaturePower consumption AC inputInstallation UnpackingRack Mounting Attach the adhesive rubber pads to the bottomConnecting Network Cable Attach the mounting brackets to the SwitchAC Power Front Panel Reset buttonLED Indicator 10/100 BASE-TX Twisted Pair Ports Port 1~24Rear Panel AC Power Connector10/100/1000 BASE-T Twisted Pair Ports Port 27~28 Power and System LEDs Understanding LED IndicatorsPower LEDs Ports 1 ~ 24 Status LEDs Link/Act 100Mbps1000Mbps Ports 27~28 10/100/1000 Base-T LEDs Link/ActWhen the 1000Mbps LED light is on, the respective port Installing the SmartConsole Utility Supported web browsersSmartConsole Utility Features Menu ToolbarOption includes Refresh Time and Group Interval functions Definitions of the Discovery List features Discovery ListMonitor List Definitions of the Monitor List functions and termsView trap Device Setting This space has been intentionally reserved for notesFirmware Upgrade Login Web-based ManagementLog in screen Tool Menu Tool MenuSetup Menu Tool Menu Firmware Backup and UploadSystem System Setting C PSystem Trap Setting System System SettingSystem Port Setting System Trap SettingSystem Port Setting System Snmp Setting System Snmp Setting System Password Access Control Configuration 802.1Q VlanConfiguration 802.1Q Vlan Default Setting Configuration 802.1Q Vlan Add VID Configuration Trunking Configuration Igmp SnoopingConfiguration Igmp Snooping Configuration Page Page Configuration Igmp Router port Settings Configuration 802.1D Spanning Tree Configuration Spanning TreePage Configuration Port Mirroring Configuration Port MirroringQoS 802.1p Default Priority QoS 802.1p Default PrioritySecurity 802.1X Setting Security Safeguard EngineSecurity Broadcast Storm Control Security 802.1X Setting Page Security Mac Address Table Static Mac Security Static Mac AddressSecurity Mac Address Table Dynamic Forwarding Table Security Dynamic Forwarding TableMonitoring Statistics Monitoring StatisticsMonitoring Port Statistics