Hitachi GR2000 Series manual Network Interface board, Next-Level Aggregation Identifier, PADding

NIF	Network Interface board
NLA ID	Next-Level Aggregation Identifier
NLP	Network Layer Protocol
NRZ	Non-Return-to-Zero
NSAP	Network Service Access Point
NSSA	Not So Stubby Area
NTP	Network Time Protocol
OAM	Operation Administration and Management
OC-3c	Optical Carrier level 3 concatenation
OC-12c	Optical Carrier level 12 concatenation
OC-48c	Optical Carrier level 48 concatenation
ONU	Optical Network Unit
OSI	Open Systems Interconnection
OSPF	Open Shortest Path First
OUI	Organizationally Unique Identifier
packet/s	Packets Per Second, sometimes abbreviated as pps
PAD	PADding
PADI	PPPoE Active Discovery Initiation
PADO	PPPoE Active Discovery Offer
PADR	PPPoE Active Discovery Request
PADS	PPPoE Active Discovery Session-confirmation
PADT	PPPoE Active Discovery Terminate
PC	Personal Computer
PCR	Peak Cell Rate
PDB	Permanent Data Base
PDU	Protocol Data Unit
PHY	PHYsical layer protocol
PID	Protocol IDentifier
PIM	Protocol Independent Multicast
PIM-DM	Protocol Independent Multicast-Dense Mode
PIM-SM	Protocol Independent Multicast-Sparse Mode
PIM-SSM	Protocol Independent Multicast-Source Specific Multicast
PLD	Programmable Logic Design
POS	PPP over SONET/SDH
PPP	Point-to-Point Protocol
PPPoE	PPP over Ethernet
GR2K-GA-0014	ix
Ver. 07-02