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AAL1
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ATM Adaptation Layer 1
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Access Link
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A link that represents connectivity to External Reference Points of the MEN
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ADM
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Add Drop Multiplexer
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AIS
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Alarm Indication Signal
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Alarm Status
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Indicates the occurrence of an abnormal condition. Values for alarm status include: critical, major, minor, indeterminate, warning, pending, and cleared
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All to One Bundling
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A UNI attribute in which all CE-VLAN IDs are associated with a single EVC
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ALNP
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Aggregated Line and Node Protection
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ANSI
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American National Standards Institute
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APCP
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Application Protection Constraint Policy
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APP
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Application Layer, Application Services Layer
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APS
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Automatic Protection Switch, Automatic Protection Switching
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ATM
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Asynchronous Transfer Mode
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Availability Performance
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A measure of the percentage of time that a service is useable.
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Bandwidth Profile
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A characterization of ingress Service Frame arrival times and lengths at a reference point and a specification of the disposition of each Service Frame based on its level of compliance with the Bandwidth Profile. In this document the reference point is the UNI
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Bandwidth profile per CoS ID
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A UNI service attribute
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Bandwidth profile per EVC
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A UNI service attribute
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Bandwidth profile per ingress UNI
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A UNI service attribute
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BBER
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Background Block Error Ratio
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BER
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Bit Error Rate, Bit Error Ratio
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BLSR
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Bi-directional Line Switched Ring, Bi-directional Line Switching Redundancy
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BPDU
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Bridge Protocol Data Unit
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Broadcast Service Frame
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A Service Frame that has a broadcast destination MAC address.
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Broadcast Service Frame Delivery
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An EVC service attribute
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Bundling
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A UNI attribute in which more than one CE-VLAN ID can be associated with an EVC
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BWP
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Bandwidth Profile
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Carrier Ethernet
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Carrier Ethernet is a ubiquitous, standardized, carrier-class SERVICE defined by five attributes that distinguish Carrier Ethernet from familiar LAN based Ethernet:
1) Standardized Services
2) Scalability
3) Reliability
4) Quality of Service
5) Service Management
Within the context of the MEF specifications, Metro Ethernet and Carrier Ethernet or MENs and CENs can be used interchangeably.
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CAS
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Channel Associated Signaling
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CBS
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Committed Burst Size
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CCS
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Common Channel Signaling
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CE
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Customer Equipment, Carrier Ethernet, Customer Edge, Circuit Emulation
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CES
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Circuit Emulation Services
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CESoETH
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Circuit Emulation Services over Ethernet
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CE-VLAN CoS
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Customer Edge VLAN CoS. The user_priority bits in the IEEE 802.1Q Tag in a Service Frame that is either tagged or priority tagged.
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CE-VLAN CoS Preservation
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An EVC service attribute
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CE-VLAN ID
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The identifier derivable from the content of a Service Frame that allows the Service Frame to be associated with an EVC at the UNI. Customer Edge VLAN ID. The identity of the VLANs on the Ethernet port of the customer equipment that is attached to the UNI.
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CE-VLAN ID / EVC Map
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A UNI service attribute
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CE-VLAN ID Preservation
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An EVC attribute in which the CE-VLAN ID of an egress Service Frame is identical in value to the CE-VLAN ID of the corresponding ingress Service Frame
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CE-VLAN ID/EVC Map
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An association of CE-VLAN IDs and EVCs at a UNI.
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CE-VLAN Tag
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Customer Edge VLAN Tag. The IEEE 802.1Q Tag in a tagged Service Frame.
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CE-VLAN tag preservation
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A set of EVC service attributes
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CF
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Coupling Flag
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CFI
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Canonical Format Indicator
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CI
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Characteristic Information
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CIR
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Committed Information Rate
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CIR-compliant
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Service frames that are compliant with the CIR of the bandwidth profile. CIR-compliant service frames are colored green.
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Circuit Emulation Service
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A service that transports TDM-based traffic over a Metro Ethernet Network.
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Class of Service
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A set of Service Frames that have a commitment from the Service Provider to receive a particular level of performance.
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Class of Service Identifier
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Information derivable from a) the EVC to which the Service Frame is mapped, b) the combination of the EVC to which the Service Frame is mapped and a set of one or more CE-VLAN CoS values, c) the combination of the EVC to which the Service Frame is mapped and a set of one or more DSCP values, or d) the combination of the EVC to which the Service Frame is mapped and a set of one or more tunneled Layer 2 Control Protocols.
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Class of Service Performance
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A set of EVC-related service attributes
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CLE
|
Customer Located Equipment
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