Note: The IGMP pruning timer is triggered when an IGMP packet is received on the VLAN. A 510T switch must have a 550 series device with IP Multicast enabled in the same VLAN to trigger the timer.
1. Open Configure | VLAN/Routing.
2. Click Advanced.
3. Click IP Routing.
4. Click IGMP.
5. Select IGMP pruning and set a Pruning timeout.
6. Click Apply and then Close.
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