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.NO | HDLC | PPP |
|---|---|---|
| 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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