HDLC
HDLC
- High-Level Data Link Control (HDLC) is a Layer 2 WAN Encapsulation Protocol that is used on Synchronous data links
- Serial connections use HDLC encapsulation by default
- It has a standard and a #Cisco-Proprietary version
- Cisco HDLC is the default WAN protocol on Cisco devices for point-to-point WAN links