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Layer 2 vs Layer 3 switches. The OSI networking model defines a number of network “layers.” (Getting into each layer is beyond the scope of this article but our Network Management in a Nutshell blog post has a good recap if you want to brush up.) Layer 2 of the OSI model is known as the data link layer. The Layer 2 protocol you’re likely ...
Mar 30, 2017 · Published: 30 Mar 2017. A Layer 3 switch -- also referred to as a multilayer switch -- combines the duties of a switch and a router. It acts as a switch because it connects devices that are on the same IP subnet or virtual LAN, and it performs at or near wire speed. But it also acts as a router because it has IP routing intelligence built in.
- Andrew Froehlich
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Feb 14, 2024 · Layer 2 Switching. Layer 3 Switching. Cost. Very cost-effective to small or medium-sized organizations. More expensive and suits large organizations with complex networks. Set-up and Configuration. Simple to set up and manage. Requires advanced configurations to set up and manage, mostly requiring dedicated IT resources.
Sep 14, 2023 · Introduction: To put it simply, a layer 3 switch combines the functionalities of a switch and a router. It serves as a switch to facilitate fast connections between devices located within the same subnet or virtual LAN. Additionally, it possesses IP routing intelligence, enabling it to function as a router.
The simplest explanation possible is that a Layer 3 switch is a single device that works as a switch and router. More specifically, it’s a device that uses routing intelligence to provide switching in Layer 3 of the OSI model. This primarily means two things for Layer 3 switching. First, it is still a switch and is not providing WAN services.
Step 1. Before you configure the Layer 3 switch, create static routes in the gateway router to each of the new subnets. In this example, my gateway router uses a LAN subnet of 192.168.199.0, so I need to create static routes on the router to the 192.168.7. 0 and 192.168.8.0 subnets. Static Routes on a Router.
A network switch connects devices within a network (often a local area network, or LAN *) and forwards data packets to and from those devices. Unlike a router, a switch only sends data to the single device it is intended for (which may be another switch, a router, or a user's computer), not to networks of multiple devices.
