Subnet vs VLAN

At the highest level, both VLAN and subnet are similar in such a manner that they are dealing with a segment or partition of a network. Although, VLAN’s are those which are the data link layer (OSI layer 2) constructs. On the other side, subnets are considered as network layer (OSI layer 3) IP constructs, and they also address another kind of concern within a network. However, it is usual practice for creating a personalized association among a subnet and a VLAN. It is a fact that both of them are independent at layer 3 and layer 2 and are constructing further scalability while they design the network.
OSI Model Layers

As soon as we discuss subnet or VLAN, we are concisely covering the OSI Model. The Open Systems Interconnection (OSI) is a model which is conceptualizing the mode of computing functions. It’s a seven-layer model that is utilized, like a tool to trace flowing of the data on the network. This kind of model is usually breaking down by the protocol is utilized for communicating. As it is suggested by the name, layer 1 is a physical level where the processing of the data initiates. Layer 7 (app layer) is the top layer where protocols, such as HTTP and telnet, are communicating. Apart from this, every other thing, from initiating the request of data to get the internet falls among those two layers.

VLAN owns similar characteristics, like physical local-area network. However, it is allowing for the devices to connect altogether with no trouble, even though in case they aren’t linked on a similar network switch. Separating the ports by VLAN grouping is separating their traffic, in the same manner, to connect devices towards the individual and different switch. VLANs offer a much higher level of security along with great scalability for relatively little cost.

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