Networking is a process of connecting two more than two computers with the purpose to share data, provide technical support, and to communicate

Virtual Extensible LAN(VXLAN)

VXLAN is essentially a tunneling technology which establishes a logical tunnel on the IP network between the source and destination network. VXLAN is a Layer 2 overlay network over a Layer 3 underlay network. An overlay network is a virtual… Read More ›

Data Link Control- Framing

Framing is the process of encapsulating the packets received from network layer into frames. The complete message from the network layer can be packed into single frame but this is not done as flow and error control becomes inefficient as… Read More ›

Frame Format

Each frame is added a header and trailer where header helps in differentiating one message from source to destination or other message to other destination. The trailer contains error detection and correction bits. This is commonly known as cyclic redundancy… Read More ›

Frame Length:

The length of each type of frame(ethernet, token ring, ATM) can vary. Here discussion revolves around ethernet frame The size of data payload can vary from 46 bytes to 1500 bytes. Thus minimum size of frame length can be 64… Read More ›

Data Link Layer: Error Control

There are three techniques for error controlling in data link layer Stop-and-Wait-ARQ: In this method sender does not send the next frame until it does not receive acknowledgement for the last sent frames. It starts a timer once frame is… Read More ›

Random Access Protocol

This is one of the group of protocol for media access control. There is no schedule time for a station to transmit, transmission can happen by any station at any point of time. All the station compete for the shared… Read More ›

MAC address

This is the physical address which is used at Data link layer. It stands for Media Access Control address. It is 12 digit hexadecimal number, represented by colon-Hexa-decimal notation. It is of 48 bits, embedded into Network Interface card(NIC) Format… Read More ›