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High-Level Data Link Control(HDLC) is a bit-oriented code-transparent synchronous data link layerprotocol developed by the International Organization for Standardization (ISO). The original ISO standards for HDLC are:
- ISO 3309 - Frame Structure
- ISO 4335 - Elements of Procedure
- ISO 6159 - Unbalanced Classes of Procedure
- ISO 6256 - Balanced Classes of Procedure
The current standard for HDLC is ISO 13239, which replaces all of those standards.
HDLC provides both connection-oriented and connectionless service.
HDLC can be used for point to multipoint connections, but is now used almost exclusively to connect one device to another, using what is known as Asynchronous Balanced Mode(ABM).
What else can I help you with?
What ppp protocol provides dynamic address authentication?
HDLC
What is the default encapsulation for serial interfaces on Cisco routers?
HDLC
What major benefit does cisco hdlc provide that iso standard hdlc lacks?
multiprotocol support
What is the difference between PPP and HDLC?
Differences between HDLC and PPP are(1) HDLC is cisco proprietary while PPP is an open standard.(2) HDLC does not provide authentication while PPP provides authentication like PAP and CHAP.(3) HDLC does not support compression while PPP support compression.(4) HDLC supports synchronous networks only while PPP supports both synchronous and asynchronous networks.
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What is the default WAN protocol for Cisco serial links?
HDLC
What is the default encapsulation type on a synchronous serial interface?
HDLC
What is bit stuffing in HDLC?
Bit stuffing is the insertion of non information bits into the data bits.In high level data link control protocol(HDLC),it provides a means of synchronization.
