In the 7-layer OSI model (see below), the network layer is layer 3. The Internet Protocol (IP) is one of the main protocols used at this layer, along with several other protocols for routing, testing, and encry
The two protocols used in the transport layer are user datagram protocol (UDP) and TCP. UDP This protocol provides connectionless service and end-to-end delivery of transmission. It is considered an unstable protocol because it discovers the errors but does not specify them. ...
Layer 1: Physical layer network protocols Interfaces between network medium and devices. Defines optical, electrical, and mechanical characteristics. Though some say the OSI model is now redundant and less significant than the Transmission Control Protocol (TCP)/IP network model, there are still refere...
Located at Layer 3 of the Open Systems Interconnection (OSI) communications model, the primary function of the network layer is to move data into and through other networks. Network layer protocols accomplish this goal by packaging data with correct network address information, selecting the appropria...
Internet Protocol (IP) addresses operate at Layer 3, the network layer. TCP, UDP, and IP are protocols that facilitate how data is sent and received. Layer 3 - Network layer The network layer facilitates the transfer of data when two networks are communicating with each other. If two ...
Protocols are often discussed in terms of which OSI model layer they belong to. eBook Strengthen security with a unified platform Get the eBook Whitepaper Developing a strategy for your network modernization Read the whitepaper What are the layers of the OSI model? The Open Systems ...
Time-Sensitive Networking (TSN) provides a protocol suite developed by IEEE 802.1 to enable deterministic minimum delay on the non-deterministic Ethernet. TSN provides a set of universal time-sensitive mechanisms for the data link layer of the Ethernet protocols. It also guarantees real-time, determ...
The OSI model of computer networking is a conceptual rather than a physical model. Its seven-layer framework provides a method for visualizing computer networking and data flow in a network. It also provides a standardized language with specific rules and protocols that enable diverse networking tech...
The network layer protocols are concerned with the exchange of packets. To send packets between the source and destinations, the network layer must know the topology of the network. The following are the functions of the network layer.
Layer 2 Protocols They are used to transmit data across a LAN and are the second layer of the OSI model. Examples of popular layer 2 protocols include Ethernet and WiFi. Most common network devices use a combination of both Layers 1 and 2 to communicate with other devices on the same netw...