A protocol is a set of rules and conventions that describe how information is to be exchanged between two entities. A set of protocols layered in this way is called a protocol stack. A layer can have more than one protocol defined for it.

What are the layer 4 protocols?

Some common protocols used in OSI Layer 4 are:

• User Datagram Protocol (UDP)
• UDP Lite.
• Cyclic UDP (CUDP)
• Reliable UDP (RUDP)
• AppleTalk Transaction Protocol (ATP)
• Multipath TCP (MTCP)
• Transaction Control Protocol (TCP)
• Sequenced Packet Exchange (SPX)

Why are layered protocols used?

Layers provide a division of the work done by a network. Networks are set up with a protocol hierarchy that divides the communication task into several layers.

What are l2 protocols?

Layer 2 protocols are a list of communication protocols used by Layer 2 devices (such as network interface cards (NIC), switches, multiport bridges, etc.) to transfer data in a wide area network, or between one node to another in a local area network.

What is a Layer 3 protocol?

Network layer, layer 3. The most significant protocol at layer 3 (also called the network layer) is the Internet Protocol, or IP. IP is the standard for routing packets across interconnected networks–hence, the name internet. It is an encapsulating protocol similar to the way Ethernet is an encapsulating protocol.

What is L2 L3 protocol?

Different types of network Protocols (L2 and L3) Layer 2: It is a data link layer. Mac address, Ethernet, Token Ring, and Frame Relay are all examples of Data link layer. Layer 3: It is a network layer that determines the best available path in the network for communication. An IP address is an example of layer3.

What is a datadata link layer protocol?

Data Link Layer protocols are generally responsible to simply ensure and confirm that the bits and bytes that are received are identical to the bits and bytes being transferred. It is basically a set of specifications that are used for implementation of data link layer just above the physical layer of the Open System Interconnections (OSI) Model.

What is layer 2 network protocols?

To understand Layer 2 network protocols, we must learn about the Open Systems Interconnection (OSI) model and Layer 2 first. Touted as the data link layer, Layer 2 is the second of the seven-level OSI model that is responsible for error-free data transmission between devices in the same network.

What is a data link protocol (DRP)?

It is basically a set of specifications that are used for implementation of data link layer just above the physical layer of the Open System Interconnections (OSI) Model. There are various data link protocols that are required for Wide Area Network (WAN) and modem connections.

What are the different data link protocols used in Wan?

There are various data link protocols that are required for Wide Area Network (WAN) and modem connections. Logical Link Control (LLC) is a data link protocol of Local Area Network (LAN). Some of data link protocols are given below :