D-Link DES-1252 - Manual (Page 49)

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Figure 334 – Configuration > IGMP Router port Settings
To view the Multicast Entry Table for a given VLAN, press the View
button.
Figure 345 – Configuration > IGMP Multicast Entry Table
Configuration > 802.1D Spanning Tree
802.1D Spanning Tree Protocol (STP) implementation is a backup
link(s) between switches, bridges or routers designed to prevent