D-Link DES-3326SRM Product Manual - Page 158
IGMP Interface Configuration, IGMP Interface Setup
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D-Link DES-3326S Layer 3 Switch IGMP Interface Configuration IGMP for IP interfaces function the same way they do for individual ports or VLANs in Layer 2. Most of the parameters are the same as well, except instead of configuring for VLANs you are setting up IGMP for different subnets (IP interfaces). To configure an IGMP Interface on the switch, click on the IGMP Interface Configuration link under the IP Multicast Routing Protocols folder: Figure 21- 4. IGMP Interface Setup The Internet Group Multicasting Protocol (IGMP) can be configured on the switch on a per-IP interface basis. Each IP interface configured on the switch is displayed in the above IGMP Interface Configuration dialog box. To configure IGMP for a particular interface, click the corresponding click-box for that IP interface and click the Edit button. This will open the following dialog box: Figure 21- 5. IGMP Interface Configuration − Edit This dialog box allows the configuration of IGMP for each IP interface configured on the switch. IGMP can be configured as Version 1 or 2 by toggling the Version field using the pull-down menu. The length of time between queries can be varied by entering a value between 1 and 65,500 seconds in the Query Interval field. The maximum length of time between the receipt of a query and the sending of an IGMP response report can be varied by entering a value in the Max Response Time field. NOTE: The Robustness Variable field allows IGMP to be 'tuned' for subnetworks that are expected to lose many packets. A high value (max. 255) for the robustness variable will help compensate for 'lossy' sub-networks. A low value (min. 2) should be used for less 'lossy' sub-networks. 148