User manual D-LINK DGS-1210-20

[. . . ] 64 iii About This Guide D-Link Web Smart Switch User Manual About This Guide This guide provides instructions to install the D-Link Gigabit Web Smart Switch DGS-1210-16/24/48, how to use the SmartConsole Utility, and to configure Web-based Management step-by-step. Note: The model you have purchased may appear slightly different from the illustrations shown in the document. Refer to the Product Instruction and Technical Specification sections for detailed information about your switch, its components, network connections, and technical specifications. This guide is mainly divided into four parts: 1. [. . . ] Two types of link aggregation can be selected: Static - Static link aggregation. Figure 63 – Configuration > Link Aggregation > Port Trunking NOTE: Each combined trunk port must be connected to devices within the same VLAN group. Configuration > Link Aggregation > LACP Port Settings The LACP Port Settings is used to create port trunking groups on the Switch. The user may set which ports will be active and passive in processing and sending LACP control frames Figure 64 – Configuration > Link Aggregation > LACP Port Settings From Port: The beginning of a consecutive group of ports may be configured starting with the selected port. To Port: The ending of a consecutive group of ports may be configured starting with the selected port. 37 5 Configuration D-Link Web Smart Switch User Manual Port Priority (0-65535): Displays the LACP priority value for the port. Activity: There are two different roles of LACP ports: Active - Active LACP ports are capable of processing and sending LACP control frames. This allows LACP compliant devices to negotiate the aggregated link so the group may be changed dynamically as needs require. In order to utilize the ability to change an aggregated port group, that is, to add or subtract ports from the group, at least one of the participating devices must designate LACP ports as active. Passive - LACP ports that are designated as passive cannot initially send LACP control frames. In order to allow the linked port group to negotiate adjustments and make changes dynamically, one end of the connection must have "active" LACP ports. timeout: Specify the administrative LACP timeout. The possible field values are: Short (3 Sec) - Defines the LACP timeout as 3 seconds. long (90 Sec) - Defines the LACP timeout as 90 seconds. click Apply to implement the changes made. Configuration > IGMP Snooping With Internet Group Management Protocol (IGMP) snooping, the Web Smart Switch can make intelligent multicast forwarding decisions by examining the contents of each frame’s Layer 2 MAC header. IGMP snooping can help reduce cluttered traffic on the LAN. With IGMP snooping enabled globally, the Web Smart Switch will forward multicast traffic only to connections that have group members attached. The settings of IGMP snooping is set by each VLAN individually. figure 65 – Configuration > IGMP Snooping Configuration By default , IGMP is disabled. If enabled, the IGMP Global Settings will need to be entered: Host Timeout (130-153025 sec): This is the interval after which a learned host port entry will be purged. For each host port learned, a 'Port Purge Timer' runs for 'Host Port Purge Interval'. [. . . ] The non-disruptive and smooth evolution nature, and the dominating potential market base, virtually guarantees cost-effective and high performance Fast Ethernet solutions. It is an extension of the 10Mbps Ethernet standard with the ability to transmit and receive data at 100Mbps, while maintaining the CSMA/CD Ethernet protocol. Since the 100Mbps Fast Ethernet is compatible with all other 10Mbps Ethernet environments, it provides a straightforward upgrade and utilizes existing investments in hardware, software, and personnel training. Switching Technology Another approach to push beyond the limits of Ethernet technology is the development of switching technology. [. . . ]