In addition to the ISL packet tagging method, Cisco also created the Virtual Trunking Protocol, or VTP, for dynamically configuring VLAN information across the network regardless of media…

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Another key component of VLANs is the router. Routers provide inter-VLAN communications and are essential for sharing VLAN information in large environments. The Layer 3 routing capabilities provide…

Computer Network Tutorial

Let’s take a look at some technologies that are essential for VLAN implementations. Inter-Switch Link Cisco developed the Inter-Switch Link, or ISL, mechanism to support high-speed trunking between…

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Membership by Port Let’s look at the first method for determining or assigning VLAN membership: Port-based — In this case, the port is assigned to a specific VLAN…

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VLANs provide many internetworking benefits that are compelling. Reduced administrative costs—Members of a VLAN group can be geographically dispersed. Members might be related because of their job functions…

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Well, the reality of the work environment today is that personnel is always changing. Employees move departments; they switch projects. Keeping up with these changes can consume significant…

Computer Network Tutorial