The Data Link Layer protocols are Ethernet, token ring, FDDI and PPP. An important characteristic of a Data Link Layer is that datagram can be handled by different link layer protocols on different links in a path.

What are data link protocol?

In networking and communications, the transmission of a unit of data (frame, packet) from one node to another. Known as a “layer 2 protocol,” the data link protocol is responsible for ensuring that the bits and bytes received are identical to the bits and bytes sent.

What are the 4 layers of protocols?

The four layers of original TCP/IP model are Application Layer, Transport Layer, Internet Layer and Network Access Layer.

What are the three main types of data links?

There are three types of data link configurations for establishing connections: simplex, half-duplex and duplex. Simplex is only meant for unidirectional communication. Half-duplex allows bidirectional communication, but not simultaneously. Duplex allows for bidirectional connections that can transmit simultaneously.

What are the 7 protocols?

Common Management Information Protocol (CMIP) On TCP/IP stack:

  • Hypertext Transfer Protocol (HTTP)
  • File Transfer Protocol (FTP)
  • Simple Mail Transfer Protocol (SMTP)
  • Simple Network Management Protocol (SNMP)

What is the data link layer?

The data link layer is the protocol layer in a program that handles the moving of data into and out of a physical link in a network. The data link layer is Layer 2 in the Open Systems Interconnection (OSI) architecture model for a set of telecommunication protocols.

What are the 7 network protocols?

The OSI (Open Systems Interconnection) Reference Model defines seven layers of networking protocols.
In this model, there are four layers, including:

  • Ethernet (Physical/Data Link Layers)
  • IP/IPX (Network Layer)
  • TCP/SPX (Transport Layer)
  • HTTP, FTP, Telnet, SMTP, and DNS(combined Session/Presentation/Application Layers)

What are the different types of protocols?

Types of Protocols

  • Transmission Control Protocol (TCP)
  • Internet Protocol (IP)
  • User Datagram Protocol (UDP)
  • Post office Protocol (POP)
  • Simple mail transport Protocol (SMTP)
  • File Transfer Protocol (FTP)
  • Hyper Text Transfer Protocol (HTTP)
  • Hyper Text Transfer Protocol Secure (HTTPS)

How many types of protocols are there?

There are three main types of network protocols. These include network management protocols, network communication protocols and network security protocols: Communication protocols include basic data communication tools like TCP/IP and HTTP.

What are l2 and l3 protocols?

There are several sorts of network protocols.

Layer 2 − The second layer is the data link layer. Data link layers 2 are best shown by Mac addresses and Ethernet. Layer 3 − Layer 3 is a network layer that identifies the best available communication channel in the network. Layer 3 is exemplified by an IP address.

What is a Layer 2 protocol?

Layer 2 protocols or network L2 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 the difference between L2 and l3?

A switch is a device which sends a data packet in a local network.
Difference between layer-2 and layer-3 switches.

Layer 2 Switch Layer 3 Switch
Work with MAC address only Can perform functioning of both 2 layer and 3 layer switch
Used to reduce traffic on local network. Mostly Used to implement VLAN (Virtual Local area network)