User manual D-LINK DGS-1224T

[. . . ] D-Link DGS-1224T 24-Port 10/100/1000Mbps Gigabit Ethernet Switch + 2-Port mini GBIC Web-Smart Switch Manual Second Edition Building Networks for People TABLE OF CONTENT About This Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Terms/Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 28 VLAN Settings (Virtual Local Area Network) VID Table Setting: select the VID group that you set. When you select VID Table Setting, press "Add new VID" to create new VID group, from port 01 ~ port 24, select Untag Port, Tag Port or Not Member for each port. To remove the selected VID group, select the VID group and press "Remove the VID" button. To modify the VID group setting, select the VID group and change the setting, and press "Apply" button to save the settings. Figure 19. 802. 1Q VID Table Setting Port VID Setting: When you select Port VLAN setting, fill in each port's PVID value between 1 and 4094. 29 Figure 20. 802. 1Q Port VID Setting Trunk Setting The Trunk function enables to cascade two or more devices with a larger bandwidths. There are three Trunk groups to be set; and there are default ports in each member. Checked "Enable" to use the trunk function, select the ports in each member to be trunk, and click "Apply" to activate the selected trunk group. 30 Figure 21. Trunk Settings Be sure that the selected trunk setting port must connect to the device with a same VLAN group. Mirror Setting Port Mirroring is a method of monitoring network traffic that forwards a copy of each incoming and/or outgoing packet from one port of a network switch to another port where the packet can be studied. It enables the manager to keep close track of switch performance and alter it if necessary. Configuring the port mirroring by assigning a source port from which to copy all packets and a sniffer port where those packets will be sent. The selection of the sniffer mode is as follow: TX (transmit) mode: this mode will duplicate the data transmit from the source port and forward to the sniffer port. RX (receive) mode: this mode will duplicate the data that send to the source and forward to the sniffer port. 31 Both (transmit and receive) mode: this mode will duplicate both the data transmit from and data that send to the source port, then it will forward to the sniffer port. Figure 22. Mirror setting 32 IEEE 802. 1P QoS Setting To set the Switch QoS base on IEEE 802. 1p, Figure 23. IEEE 802. 1P-based QoS setting Spanning Tree Setting This Switch supports the 802. 1d Spanning Tree Protocol. However, BPDU packets are sent more frequently - with every Hello packet. Therefore, each link between bridges is sensitive to the status of the link. Ultimately this difference results in faster detection of failed links, and thus faster topology adjustment. A draw-back of 802. 1d is this absence of immediate feedback from adjacent bridges. Figure 24. Spanning Tree Setting 33 STP Function: To selecting enable or disable STP function on the Switch. Bridge Priority: This value between 0 and 65535 to specify the priority for forwarding packets. [. . . ] However, there is no guarantee that interference will not occur in a particular installation. Operation of this equipment in a residential environment is likely to cause harmful interference to radio or television reception. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · · · · Reorient or relocate the receiving antenna. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. [. . . ]