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APPENDIX E: GLOSSARY
Term/Acronym Definition
802.1ag
IEEE standard for end-to-end OAM.
802.3ah
IEEE standard addressing Ethernet in the first mile
and also OAM for point-to-point Ethernet links.
CFM
Connectivity Fault Management.
CLI
Command Line Interface - An interface screen used
for system management and diagnostics requiring
the user to type commands rather than use a GUI.
CPE
Customer Premises Equipment -normally the end
point of a leased fiber.
DC
Direct Current.
DDMI
Digital Diagnostic Monitor Interface - A defined serial
interface and data format typically used to access
SFP internal information.
DHCP
Dynamic Host Configuration Protocol -Used to
automate configuration of computers that use
TCP/IP.
GUI
Graphical User Interface -Software that provides a
visual interface to enable an end-user to manage
and monitor network devices.
IEEE
Institute of Electrical and Electronics Engineers -
IEEE develops industry-wide standards for use in a
variety of electronic devices.
IP
Internet Protocol.
LED
Light Emitting Diode - a light to indicate link, duplex
or other options.
MA
Maintenance Association.
MD
Maintenance Domain.