D-Link DGS-1210-20 Reference Guide - Page 48
L2 Functions > Multicast > Multicast Filtering Mode, L2 Functions > SNTP > Time Settings - 48 manual
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5 Configuration D-Link Web Smart Switch User Manual L2 Functions > Multicast > Multicast Filtering Mode The Multicast Filtering Mode function allows users to select the filtering mode for IGMP group per VLAN basis. Figure 5.47 - L2 Functions > Multicast > Multicast Filtering Mode VLAN ID: Specifies the VLAN ID. Filtering Mode: Forward Unregistered Groups: The multicast stream will be forwarded based on the register table in registered group, but it will be flooded to all ports of the VLAN in unregistered group. Filter Unregistered Groups: The registered group will be forwarded based on the register table and the unregister group will be filtered. Click Apply to make the change effective. L2 Functions > SNTP > Time Settings SNTP or Simple Network Time Protocol is used by the Switch to synchronize the clock of the computer. The SNTP settings folders contain two windows: Time Settings and TimeZone Settings. Users can configure the time settings for the switch, and the following parameters can be set or are displayed in the Time Settings page. Figure 5.48 - L2 Functions > SNTP > Time Settings Clock Source: Specify the clock source by which the system time is set. The possible options are: Local - Indicates that the system time is set locally by the device. SNTP - Indicates that the system time is retrieved from a SNTP server. Current Time: Displays the current date and time for the switch. If choosing SNTP for the clock source, then the following parameters will be available: SNTP First Server: Specify the IP address of the primary SNTP server from which the system time is retrieved. SNTP Second Server: Specify the IP address of the secondary SNTP server from which the system time is retrieved. SNTP Poll Interval in Seconds (30-99999): Defines the interval (in seconds) at which the SNTP server is polled for Unicast information. The Poll Interval default is 30 seconds. 43