All MEF-CECP Candidates are expected to know both the meaning and the expansion (i.e. what the letters stand for) of the following acronyms. They can appear on the MEF-CECP exam without expansion although they may be expanded in some cases:
Acronym | Expansion |
---|---|
bps / kbps / Mbps | bits / kilobits / megabits per second |
CBS | Committed Burst Size |
CCM | Continuity Check Message |
CE 1.0 and CE 2.0 | Carrier Ethernet 1.0 and 2.0 |
CEN | Carrier Ethernet Network |
CES / CESoETH | Circuit Emulation Services / CES over Ethernet |
CF | Coupling Flag |
CHLI | Consecutive High Loss Interval |
CIR / CIRmax | Committed Information Rate (and maximum) |
CoS | Class of Service |
CM | Color Mode |
DEI | Discard Eligibility Indicator |
E-ACCESS | Ethernet Access Service (OVC) |
EBS | Excess Burst Size |
EIR / EIRmax | Excess Information Rate (and maximum) |
E-LMI | Ethernet Local Management Interface |
ENNI | External Network Network Interface |
EPL / EP-LAN / EP-TREE | Ethernet Private Line / LAN / Tree (EVC) |
E-TRANSIT | Ethernet Transit Service (OVC) |
EVC | Ethernet Virtual Connection |
EVPL / EVP-LAN / EVP-TREE | Ethernet Virtual Private Line / LAN / Tree (EVC) |
FD | Frame Delay |
FDR | Frame Delay Range |
FLR | Frame Loss Ratio |
HLI | High Loss Interval |
IFDV | Inter Frame Delay Variation |
L2CP | Layer 2 Control Protocol |
LAG | Link Aggregation / Link Aggregation Group |
MBH | Mobile Backhaul |
MEF | MEF Forum |
MEG | Maintenance Entity Group |
MEP | MEG Endpoint |
MFD | Mean Frame Delay |
MFS | Maximum Frame Size |
MIP | MEG Intermediate Point |
O-LINE / O-LAN / O-TREE | Operator Line / LAN / TREE Services (OVC) |
OVC | Operator Virtual Connection |
PCP | Priority Code Point |
RAN | Radio Access Network |
SAT | Service Activation Test |
SLA | Service Level Agreement |
SLS | Service Level Specification |
SOAM / -FM / -PM | Service OAM / -Fault Management / -Performance Monitoring |
SOAM-FM Messages and Indications: CCM LBM/LBR, LTM/LTR, AIS, LCK, TST, RDI | |
SOAM-PM Messages: DMM/DMR, 1DM LMM/LMR, SLM/SLR | |
SP | Service Provider |
STP | Spanning Tree Protocol |
UNI / UNI-C / UNI-N | User Network Interface / UNI Client / UNI Network |
All MEF-CECP are expected to know what these acronyms mean/refer to as shown in the table, but not necessarily the expansion (i.e. what the letters stand for). They can appear on the MEF-CECP exam without expansion although they may be expanded in some cases.
Acronym | Meaning |
---|---|
CDMA | A cellular/mobile technology (Code Division Multiple Access) |
DOCSIS | A technique for carrying Ethernet data over a cable or HFC infrastructure (Data Over Cable Service Interface Specification) |
DSCP | The IP Class of Service Field (Differentiated Services Code Point) |
ERPS | A technique for Ring Protection in Ethernet Bridged Networks (ITU G.8032) (Ethernet Ring Protection Switching) |
IP / TCP / UDP | Standard Internet Protocols (Internet Protocol, Transmission Control Protocol, User Datagram Protocol) |
LTE | A cellular/mobile technology (Long Term Evolution) |
MPLS | A type of data-carrying technique for high-performance telecommunications networks. (Multi-Protocol Label Switching) |
PDH | Generic Term for pre-SONET/SDH digital telephony transport (e.g. T1/E1 and T3/E3) (Plesiochronous Data Hierarchy) |
PDU | A protocol message (Protocol Data Unit) |
TDM | A technique for multiplexing multiple circuits on a digital service (Time Division Multiplexing) |
TPID | The field in a tag (C, S, I, B-tag) that identifies the type of tag (Tag Protocol ID) |
VPLS | A technique for implementing multipoint layer 2 services over MPLS (Virtual Private LAN Service) |
VPWS | A technique for implementing point-to-point layer services over MPLS (Virtual Private Wire Service) |
MEF-CECP Candidates are not expected to recognize acronyms that are not in Lists 1 and 2. This list identifies some commonly used terms that fall into this category. Acronyms that are not in Lists 1 and 2 will not appear in the MEF-CECP exam without expansion:
Acronym | Expansion |
---|---|
BLSR | Bidirectional Path Switched Ring |
BS | Base Station (cellular/mobile) |
BWP | Bandwidth Profile |
CPO | CoS Performance Objective |
ES | Errored Seconds |
ETE-x | Ethernet Test Equipment (all incarnations) |
LLDP | Link Layer Discovery Protocol |
MSO | Multi-System Operator |
NC | Network Controller (cellular/mobile) |
PON/GPON/EPON | Passive Optical Network / Gigabit / Ethernet |
PT | Performance Tier |
OSPF | Open Shortest Path First |
SES | Severely Errored Seconds |
UPSR | Unidirectional Path Switched Ring |
DRAFT