User manual D-LINK DES-3250TG

[. . . ] D-Link TM DES-3250TG Standalone Layer 2 Switch User's Guide ____________________ Information in this document is subject to change without notice. Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-Link logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. [. . . ] Please note that although the two front panel modules can be used simultaneously, the ports must be different. For example, if port 50x is used on the Mini GBIC module, port 50x is not available on the 1000BASE-T module. The following fields can be set: Parameter From and To State <Enabled> Speed/Duplex <Auto> Description Enter the desired range of ports to be configured in these fields. Toggle the Speed/Duplex field to either select the speed and duplex/halfduplex state of the port. Auto ­ autonegotiation between 10 and 100 Mbps devices, 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. There is no automatic adjustment of port settings with any option other than Auto. Port Mirroring To configure a port for port mirroring: Click Port Mirroring on the Configuration menu: 47 D-Link DES-3250TG Standalone Layer 2 Switch Figure 6- 12. Setup Port Mirroring window The target port is where information will be duplicated and sent for capture and network analysis. This is the port where a network analyzer would be attached to capture packets duplicated from the source port. It should be noted that a faster port (a 1000 Mbps Gigabit Ethernet port, for example) should not be mirrored to a slower port (one of the 48 100 Mbps Fast Ethernet ports), because many packets will be dropped. The following fields can be set: Parameter Source Port Description Allows multiple ports to be mirrored. These ports are the sources of the packets to be duplicated and forwarded to the Target port. Selecting this option prevents any packets from either being received or transmitted. This port is where information will be duplicated and sent for capture and network analysis. Enabled and None Ingress Egress Both Target Port Status Link Aggregation Link aggregation allows several ports to be grouped together and to act as a single link. This gives a bandwidth that is a multiple of a single link's bandwidth. Link aggregation is most commonly used to link a bandwidth intensive network device or devices ­ such as a server ­ to the backbone of a network. The switch allows the creation of up to six link aggregation groups, each group consisting of up to eight links (ports). Further, the aggregated links must all be of the same speed and should be configured as full duplex. The configuration of the Master Port in the group becomes the configuration for all of the ports in the aggregation group. All configuration options ­ including the VLAN configuration ­ that can be applied to the Master Port are applied to the entire link aggregation group. Load balancing is automatically applied to the ports in the aggregated group, and a link failure within the group causes the network traffic to be directed to the remaining links in the group. 48 D-Link DES-3250TG Standalone Layer 2 Switch The Spanning Tree Protocol will treat a link aggregation group as a single link. [. . . ] 14 trunk group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Untagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 User. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]