The Point to Point Interface MIB module.
This MIB manages the generic objects for
Serial link or SONET/SDH like point to point network
interfaces with the encapsulations of PPP
(Point to Point Protocol), HDLC (High Level Data Link Control)
or cHDLC (CIsco extension to High Level Data Link Control)
Acronyms and terms:
FCS - Frame Check Sequence. The frame check sequence is
used to ensure that the data received is actually
the data sent.
CRC - Cyclic Redundancy Check. The transmitting system
processes the frame check sequence portion of the
frame through an algorithm called a CRC (Cyclic
One of the usages of CRC is in the following
PPP/HLDC over SONET/SDH example.
| PPP| FCS Bit SONET/SDH
|HDLC|=> Generation => Stuffing => Scrambling => Framing
+----+ CRC 16,32