User manual D-LINK DGS-3308TG

[. . . ] DGS-3308 Series 8-Port Gigabit Layer 3 Switch User's Guide First Edition (December 2001) 651FG3308015 Printed In Taiwan RECYCLABLE Wichtige Sicherheitshinweise 1. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind. Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers. Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. [. . . ] Setup Trap Recipients screen Configure Ports Highlight Configure Ports from the Main Menu and press Enter: 70 8-port Gigabit Ethernet Switch User's Guide Figure 6-16. Configure Ports screen To configure a specific port, toggle the Configure Port from [ appear. Toggle the State:< > field to either enable or disable a given port. ] to [ ] field until the appropriate port numbers Toggle the Speed/Duplex:< > field to select the speed and duplex state of the port. Auto allows the port to automatically determine the fastest settings the device the port is connected to can handle, and then to use those settings. There is no automatic adjustment of port settings with any option other than Auto. Serial Port Settings The Serial Port Settings screen allows the configuration of the Switch's serial port through either the console port or through use of the Telnet protocol. Serial Port Settings screen The following fields can then be set: · Baud Rate ­ Sets the serial bit rate that will be used to communicate the next time the Switch is restarted. Applies only when the serial port is being used for out-of-band (SLIP) management; it does not apply when the port is used for the console port. Available speeds are 4800, 9600, 19200, 38400 and 57600 bits per second. Auto-Logout ­ This sets the time the interface can be idle before the Switch automatically logs-out the user. Telnet Time Out<min> ­ Select the desired Telnet age-out time in this field. Telnet Sessions<1. . 4> ­ Select between 1 and 4 Telnet sessions in this field. 71 · · · 8-port Gigabit Ethernet Switch User's Guide Switch Operation Mode Note: The Switch will retain the configuration entered for IP Routing when in Layer 2 Only mode (if the configuration is saved to NV-RAM), but the IP Routing configuration will not be active. The IP Routing configuration will become active when the Switch is again put in IP Routing mode. Note: Putting the Switch in IP Routing mode does not ­ by itself ­ enable I routing. The Switch P must be configured to use IP interfaces before it is capable of IP routing. (See the section titled Setting up IP Interfaces below. ) The Switch can operate in one of two modes: 1. Layer 2 Only with IEEE 802. 1Q VLAN support: the switching process is based upon the source and destination MAC addresses only. 802. 1Q VLANs are supported and the Switch is considered as a VLAN-tag aware device. IP Routing with IEEE 802. 1Q VLAN support: the switching process is based upon the IP source and destination addresses, if present. If the IP addresses are not present, the switching process is based upon the MAC addresses (as in Layer 2 above). 802. 1Q VLANs are supported and the Switch is considered as a VLAN-tag aware device. 2. The Switch must be rebooted when changing the operation mode before the new operation mode can take effect. Changing the Switch Operation Mode To change the Switch's operating mode: Highlight Switch Settings on the Main Menu and press Enter. Figure 6-18. Switch Settings screen 72 8-port Gigabit Ethernet Switch User's Guide Highlight Switch Operation Mode on the Switch Settings menu and press Enter. Figure 6-19. [. . . ] This gives only a single blocked port per VLAN and allows the removal of all redundant links by removing switch A or B from the network. The IP routing operational mode of the DGS-3308FG/DGS-3308TG Layer 3 switch can accomplish the following: · · Building a forwarding table, and exchanging information with its peers using routing protocols. Receiving packets and forwarding them to the correct interface based upon their destination address With layer 3 switching, there is no performance penalty to introducing a routing hop and creating an additional segment of the network. 221 8-port Gigabit Ethernet Switch User's Guide Using layer 3 switches and IP routing eliminates the need for STP port blocking because the packets are routed by destination addresses. The link redundancy remains, and relying on the routing protocols gives a faster convergence than with STP. [. . . ]