D-Link DGS-3308FG Product Manual - Page 44
Internet Protocols
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8-port Gigabit Ethernet Switch User's Guide Figure 5-7. Before Applying the STA Rules In this example, only the default STP values are used. Figure 5-8. After Applying the STA Rules The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were selected to give a high port cost between switches B and C. The two (optional) Gigabit ports (default port cost = 4) on switch A are connected to one (optional) Gigabit port on both switch B and C. The redundant link between switch B and C is deliberately chosen as a 100 Mbps Fast Ethernet link (default port cost = 19). Gigabit ports could be used, but the port cost should be increased from the default to ensure that the link between switch B and switch C is the blocked link. Internet Protocols This is a brief introduction to TCP/IP, or the collection of Internet protocols that are commonly called TCP/IP. It is intended to give the reader some understanding of the terminology and the resources available. It is not intended to be a complete description. 34