ADC Campus-REX2 RS - Manual (Page 147)

Chapter 8 - Internetworking and Management Overview
Campus-REX2 RS Interface Card User Manual 135
E NCAPSULATION P ROTOCOLS
You can select from two packet encapsulation formats for Ethernet data for
the Campus-REX2:
• compressed High-level Data Link Control (cHDLC)
• Point-to-Point Protocol (PPP)
The default setting is cHDLC and should be used in applications with another
Campus-REX2. Use PPP only if the remote unit is a synchronous interface
card, such as V.35.
When PPP is selected for bridging mode, the Campus-REX2 runs the
Bridging Control Protocol (BCP) RFC 1638. PPP provides interoperability
with other product types. cHDLC is a compressed version of the
encapsulation protocol and is preferable when there is like equipment (ADC
equipment).