When you connect two 1000BASE-T switches with SFP ports to achieve Gigabit Ethernet, there are two methods: through standard Ethernet cable plugged into the built-in Ethernet ports of each switch, or use the SFP ports with a copper SFP module. This article will discuss the two available interconnection options between 100BASE-T Ethernet switches that come with SFP ports. Most gigabit switches are equipped with both RJ45 electrical ports and SFP optical ports. Unlike fixed RJ45 copper ports, SFP ports support both fiber and copper modules, enabling far longer distances, greater flexibility, and improved scalability in enterprise. The Gigabit Interface Converter (GBIC) or Small Form-factor Pluggable (SFP) port is a modular interface that offers flexibility to network administrators in terms of their networking hardware.
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