D-Link DES-3550 Product Manual - Page 48

xStack® DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual between Auto, Normal or Cross. Auto will automatically switch to the proper configuration once a cable is connected. Normal will be selected if a straight-through cable is being used and Cross should be selected if a crossover cable is being used. Speed/Duplex Toggle the Speed/Duplex field to either select the speed and duplex/half-duplex state of the port. Auto denotes auto-negotiation between 10 and 100 Mbps devices, in full- or half-duplex. The Auto setting allows the port to automatically determine the fastest settings the device the port is connected to can handle, and then to use those settings. The other options are Auto, 10M/Half, 10M/Full, 100M/Half, 100M/Full, and 1000M/Full. There is no automatic adjustment of port settings with any option other than Auto. Flow Control Displays the flow control scheme used for the various port configurations. Ports configured for full-duplex use 802.3x flow control, half-duplex ports use backpressure flow control, and Auto ports use an automatic selection of the two. The default is Disabled. Learn Enable or disable MAC address learning for the selected ports. When Enabled, destination and source MAC addresses are automatically listed in the forwarding table. When learning is Disabled, MAC addresses must be manually entered into the forwarding table. This is sometimes done for reasons of security or efficiency. See the section on Forwarding/Filtering for information on entering MAC addresses into the forwarding table. The default setting is Disabled. Trap Enables or disables trap support on the switch. The default setting is Disabled. Click Apply to implement the new settings on the Switch. 33