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Difference Between High-level Data Link Control (HDLC) and Point-to-Point Protocol (PPP)
  • Difficulty Level : Medium
  • Last Updated : 15 Jun, 2020

The main difference between High-level Data Link Control (HDLC) and Point-to-Point Protocol (PPP) is that High-level Data Link Control is the bit-oriented protocol, on the other hand, Point-to-Point Protocol is the byte-oriented protocol.

Another difference between HDLC and PPP is that HDLC is implemented by Point-to-point configuration and also multi-point configurations on the other hand While PPP is implemented by Point-to-Point configuration only.






Let’s see that difference between HDLC and PPP:

S.NOHDLCPPP
1.HDLC stands for High-level Data Link Control.PPP stands for Point-to-Point Protocol.
2.HDLC is a bit oriented protocol.PPP is a byte oriented protocol.
3.HDLC is implemented by Point-to-point configuration and also multi-point configurations.PPP is implemented by Point-to-Point configuration only.
4.Dynamic addressing is not offered by HDLC.While in this Dynamic addressing is offered.
5.HDLC is used in synchronous media.PPP is used in synchronous media as well as asynchronous media.
6.HDLC is not compatible with non-Cisco devices.PPP is compatible with non-Cisco devices.
7.HDLC does not provide link authentication.While PPP provide link authentication using various protocols.
8.HDLC is more costly comparatively.While PPP is comparatively less costly.

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