What does HDLC mean in TELECOM
HDLC stands for High Level Data Link Control, which is a reliable and packet-oriented data link layer protocol used to provide error free and orderly communication between two or more network points in a Local Area Network (LAN). HDLC is an ISO standards based protocol that provides the base foundation for the majority of the most commonly used data link layer protocols. It can be considered as a basic form of point-to-point and multipoint communications in a network. HDLC utilizes bit stuffing and frame sequencing to ensure data reliability.
HDLC meaning in Telecom in Computing
HDLC mostly used in an acronym Telecom in Category Computing that means High-level Data Link Control
Shorthand: HDLC,
Full Form: High-level Data Link Control
For more information of "High-level Data Link Control", see the section below.
Essential Questions and Answers on High-level Data Link Control in "COMPUTING»TELECOM"
What is High-level Data Link Control (HDLC)?
HDLC is a data link protocol that provides reliable, point-to-point communication services over various physical mediums. It is a synchronous serial communications protocol, which defines basic transmission procedures and data frame formats. It provides a means of transport for upper layer protocols such as TCP/IP.
How does HDLC work?
HDLC works by sending packets of data in the form of frames. Each frame contains information about the source and destination addresses as well as the payload data being transmitted. The receiving end then verifies this information, and depending on what is verified it decides whether to accept or reject the packet.
What are the benefits of using HDLC?
One of the main advantages of using HDLC is its error detection and correction capabilities which detect any errors during transmission and retransmit corrupted frames if necessary. Additionally, it provides improved security due to its authentication mechanisms, improved performance due to its fast flow control mechanism, and good interoperability across multiple vendors.
What types of physical mediums does HDLC work with?
HDLC can be used with physical mediums such as copper wire, fiber optic cable, telephone lines, microwave radio systems, satellite networks and more.
How secure is HDLC?
Security in HDLC is provided by authentication mechanisms such as encryption techniques (e.g., AES) and authenticating through checksums or CRCs (Cyclic Redundancy Checks). This helps to ensure that only authenticated nodes can join the network or access vital resources or data stored within it.
Are there any other protocols similar to HDLC?
Yes, there are several protocols similar to HDLC including Point-to-Point Protocol (PPP), Frame Relay, Switched Multimegabit Data Service (SMDS), X.25 and more modern alternatives like Gigabit Ethernet (GbE). All these protocols have similar capabilities but have different implementation details according to their use cases.
Final Words:
HDLC is an essential transport layer protocol that plays an integral role in enabling reliable communication within Local Area Networks (LANs). It offers several features such as Point-To-Point connection support, error detection capabilities through bit stuffing and frame sequencing techniques, and Multi-Frame Acknowledgement procedures which help enhance performance while reducing packet transmission latency. HDLC essentially serves as the base foundation for many popular LAN protocols today which makes it almost indispensable for efficient networking operations.
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