ADC Telecommunications, Inc.
370 CHAPTER 18: CONFIGURING CABLE MODEM TERMINATION SYSTEMS
Configuring the MAC Interface
Media Access Control (MAC) is a logical interface implemented within
hardware and software. MAC contains one downstream and four upstream
channels. Frequencies are assigned for each of the downstream and
upstream channels.
MAC interface parameters are associated with DOCSIS/EuroDOCSIS module
timing and control features that exist at network layer 2 to manage
upstream and downstream traffic.

Displaying MAC Interface Parameters and Statistics

You can display CMTS MAC interface configuration and statistics for a
specific cable interface by performing the following tasks:
Task Command
1. Display MAC parameters and
statistics for the specified cable
interface from within root or cable
interface configuration mode.
show interface cable <c/s/i> mac
2. Display MAC parameters and
statistics for the current cable
interface from the cable interface
configuration mode.
show mac