A growing list of ATM/Cell Relay acronyms... This will eventually turn
into a dictionary. 

AAL     - ATM Adaptation Layer
ABR     - Available Bit Rate
AIS     - Alarm Indication Signal (UNI Fault Management)
AII     - Active Input Interface (Used in UNI PMD specs for Copper/Fiber)
AOI     - Active Output Interface (Used in UNI PMD specs for Copper/Fiber)
ASN.1   - Abstract Syntax Notation One
ATE     - ATM Terminating Equipment (SONET)
ATM     - Asnchronous Transfer Mode
BECN    - Backward Explicit Congestion Notification
BER     - Basic Encoding Rules (ASN.1)
BER     - Bit Error Rate (link quality specification/testing)
BIP     - Bit Interleaved Parity (e.g. SONET BIP-8 for path error monitoring)
BIPV    - Bit Interleaved Parity Violation
B-ISDN  - Broadband Integrated Services Digital Network
B-HLI   - Broadband High Layer Information
B-ICI   - Broadband Intercarrier Interface
B-ISSI  - Broadband Inter-Switching System Interface
B-LLI   - Broadband Low Layer Information
BOM     - Begining of Message
BSS     - Broadband Switching System
CAC     - Connection Admission Control
CBR     - Constant Bit Rate
CDV     - Cell Delay Variation
CEI     - Connection Endpoint Identifier (UNI 3.0)
CES     - Circuit Emulation Service
CIR     - Committed Information Rate
CLP     - Cell Loss Priority
CMISE   - Common Management Information Service Element
CPCS    - Common Part Convergence Sublayer
CPE     - Customer Premise Equipment
CPI     - Common Part Indicator
CRF(VC) - Virtual Channel Connection Related Function (related to UPC/UNI 3.0)
CRF(VP) - Virtual Path Connection Related Function (related to UPC/UNI 3.0)
CRS     - Cell Relay Service
CS      - Convergence Sublayer (as in CS_PDU)
CTD     - Cell Transfer Delay
DSX     - Digital Signal Cross-Connect
DXI     - Data Exchange Interface
EFCI    - Explicit Forward Congestion Indication
ELAN    - Emulated LAN (ATM Forum LANE)
EOM     - End of Message
FEA     - Functional Entity Action (UNI 3.0, C.3.2.3)
FEBE    - Far End Block Error (SONET)
FECN    - Forward Explicit Congestion Notification
GCRA    - Generic Cell Rate Algorithm 
GFC     - Generic Flow Control
HEC     - Header Error Control
IDU     - Interface Data Unit (UNI 3.0)
IE      - Information Element
IISP    - Interim Inter-Switch Signaling Protocol aka. P-NNI Phase 0
ILMI    - Interim Local Management Interface
LANE    - LAN Emulation (ATM Forum)
LCD     - Loss of Cell Delineation
LCT     - Last Compliance Time (used in GCRA definition)
LE      - LAN Emulation (also, LANE)
LEC     - LAN Emulation Client (ATM Forum LANE)
LES     - LAN Emulation Server (ATM Forum LANE)
LIS     - Logical IP Subnet (rfc1577)
LOF     - Loss of Frame (UNI Fault Management)
LOP     - Loss of Pointer (UNI Fault Management)
LOS     - Loss of Signal (UNI Fault Management)
LTE     - Line Terminating Equipment (SONET)
LUNI    - LANE UNI (ATM Forum, see LANE)
MBS     - Maximum Burst Size
MCR     - Minimum Cell Rate
MID     - Message IDentifier
NBMA    - Non-Broadcast Multiple Access
NEXT    - Near End Crosstalk (adverse phenomenon accociated with high 
          frequencies over twisted-pair wiring, measured in decibels)
NHRP    - Next Hop Routing Protocol (from IETF ROLC WG)
NIU     - Network Interface Unit
NLPID   - Network Layer Protocol Identifier
NNI     - Network Node Interface
NSAP    - Network Layer Service Access Point
OAM     - Operations and Management
OCD     - out-of-cell Delineation (UNI 3.0 Section 2.1.2.2.2)
PCR     - Peak Cell Rate (UNI 3.0)
PDU     - Protocol Data Unit
PLCP    - Physical Layer Convergence Procedure/Protocol
PL-OU   - Physical Layer Overhead Unit (UNI physical layer frame definition)
PMD     - Physical Media Dependent
PMP     - Point to Multipoint (UNI 3.0)
POH     - Path Overhead (SONET)
POI     - Path Overhead Indicator
PTE     - Path Terminating Equipment (SONET)
PTI     - Payload Type Identifer
PVC     - Permanent Virtual Channel
QoS     - Quality of Service
RDI     - Remote Defect Indicator (UNI Fault Management)
SAAL    - Signalling ATM Adaptation Layer
SAR     - Segmentation and Reassembly (as in SAR_PDU)
SCR     - Sustainable Cell Rate (UNI 3.0)
SDH     - Synchronous Digital Hierarchy
SDU     - Service Data Unit (as in AAL_SDU)
SEAL    - Simple and Efficient Adaptation Layer
SECB    - Severely Errored Cell Block
SIR     - Sustained Information Rate
SMDS    - Switched Multi-Megabit Data Service
SNAP    - SubNetwork Attachment Point (see IEEE 802.1a)
SONET   - Synchronous Optical Network
SSCF    - Service Specific Coordination Function
SSCS    - Service Specific Convergence Sublayer
SSCOP   - Service Specific Connection Oriented Protocol
STE     - Section Terminating Equipment (SONET)
SVC     - Switched Virtual Channel
TAT     - Theoretical Arrival Time (used in GCRA definition)
TAXI    - Transparent asynchronous transmitter/receiver interface
TC      - Transmission Convergence
TUC     - Total User Cell count
TUCD    - Total User Cell Difference
UME     - UNI Management Entity (used in ILMI definition)
UNI     - User-Network Interface
UPC     - Usage Parameter Control
VBR     - Variable Bit Rate
VC      - Virtual Channel
VCI     - Virtual Channel Identifier
VCL     - Virtual Channel Link (UNI 3.0)
VINCE   - Vendor Independent Network Control Entity
VP      - Virtual Path
VPC     - Virtual Path Connection
VPCI    - Virtual Path Connection Identifier
VPI     - Virtual Path Identifier
VPL     - Virtual Path Link (UNI 3.0)
VPT     - Virtual Path Terminator (UNI 3.0)
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