Layer 2 Network Diagram

Layer 2 and layer 3 refer to different parts of it network communications. Layer 3 network examples include appletalk ddp ip ipx. Copper wire optical fiber or air.

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Free Printable Layer 2 Network Diagram

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It furnishes transmission protocol knowledge and management and handles errors in the physical layer flow control and frame synchronization.

Layer 2 network diagram. Generally speaking layer 2 is a broadcast media access control mac mac level network while layer 3 is a segmented routing over internet protocol ip network. Overview of layer 2 networking ethernet switching and layer 2 transparent mode overview understanding unicast understanding layer 2 broadcasting on switches understanding which devices support els understanding how to configure layer 2 features using els understanding els configuration statement and command changes enhanced layer 2 cli configuration statement and command changes for. Osi subdivides the network layer into three sublayers. Layer 2 enables frames to be transported via local media e g.

The reason we are having a discussion about layer 2 or layer 3 is that your choice of either layer has advantages and disadvantage in terms of. Data link layer 2 at osi model layer 2 data packets are encoded and decoded into bits. For network engineers and architects understanding the difference between a layer 3 and layer 2 network can greatly enhance the overall security and speed of your network infrastructure. One per floor.

I usually start with a layer 3 network diagram to show the routing and ip subnets. Then i make a layer 2 diagram showing the switch connections trunks and lacp channels. It s also a good idea to make a separate diagram for each network protocol layer. The layers refer to how you configure an it network and the standard for network communications called the osi model.

3a subnetwork access 3b subnetwork dependent convergence and 3c subnetwork independent convergence. It can be used to. Layer 2 network design guidelines always connect hierarchically if there are multiple switches in a building use an aggregation switch locate the aggregation switch close to the building entry point e g. In short layer 2 allows the upper network layers to access media and controls how data is placed and received from media.

You can edit this network diagram using creately diagramming tool and include in your report presentation website. A network diagram showing layer 2. Fiber panel locate edge switches close to users e g. After that comes a layer 1 diagram showing physical layouts of the devices.

It was designed to provide a unified data carrying service for both circuit based clients and packet switching clients which provide a datagram based service model. Layer 2 also known as the data link layer is the second level in the seven layer osi reference model for network protocol design layer 2 is equivalent to the link layer the lowest layer in the tcp ip network model. This layer is embedded as software in your computer s network interface card nic. Layer 2 is the network layer used to transfer data between adjacent network nodes in a wide area network or between nodes on the same local area network.