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Because it was developed that way. Nowadays, layer 2 is sometimes divided into 2 "sub-layers", and the MPLS protocol is considered to be between the layers 2 and 3, and is therefore sometimes called "layer 2.5", but the traditional 7 layers are usually maintained as the "official" layers. We might say this is for historical reasons.
What else can I help you with?
How do the layers of the OSI model correlate to the layers of the OSI model?
OSI
What types of layers are used in connection of two computers?
The seven layers of the OSI model.
Role of osi model?
The OSI model acts as a standard in design of computer networks. It consists of total seven layers.
How many layer the Internet model consists of?
The Internet model consists of 4 layers: Application layer, Transport layer, Network layer, and Link layer. Each layer is responsible for specific functions in the process of sending data over the Internet.
Which layer of the OSI model are layers capabale of functioning?
The OSI Model stands for Open Systems Interconnection. The answer to the question which layer of the OSI model are layers capable of functioning is at all layers.
What model divides the network communication process into seven layers?
Open Systems Interconnection (OSI) model is the one which divides network communication process in to seven layers....
How osi layer works?
OSI model has seven layers and each layer is assigned a specific task for data transmission process.
Hoe are OSI and ISO created to each other?
International Standards Organization (ISO) developed a proposal for OSI model as a first step towards international standardization of the protocols used in the various layers. The model is known as the ISO OSI (Open Systems Interconnection).The OSI model includes seven layers
Which one is the best model between osi and tcpip and why?
TCP/IP because the osi model has seven layer but in tcp/ip only four layers and most important is that the tcp/ip model is reduce the function of osi model.
What are the top and bottom osi model layers called?
application -top of osi model physical- bottom of osi model
What layer of osi model is responsible for creating frames?
The Open Systems Interconnect or OSI model has seven layers. The layer that is responsible for creating frames is the Data Link layer.
Which device that functioning in all the seven OSI layer?
It is sometimes recognized that a gateway may function across several or all layers of the OSI model.
