Bin Group

A bin group is a template of Performance Measurement histogram measurement bin definitions. Bin groups contain measurement bins, which count instances of frame delay (FD), frame delay range (FDR), or interframe delay variation (IFDV) metrics within a defined range of lower to upper threshold values. Bin group definitions may also include definitions for delay-event thresholds and calculation of average FD, FDR, and IFDV values.

Bin groups define a service level agreement quality quantitatively. Service offerings with differentiated service level agreements may be measured using different bin groups.

CFM Domain

CFM Maintenance Domain (level 0 to 7)

Each MD can include multiple MAs.

CFM Association

CFM maintenance associations.

Auto-configuration of MAs is supported when creating CFM based tests

CFM MEP

CFM maintenance entity point. A MEP is an end point in an MA, on which CFM tests can be performed.

Each MEP with the same MD and MA represents endpoints for a single service.

Auto-configuration of MEPs is supported when creating CFM based tests. Service MEPs, such as SAPs, and facility MEPs, such as LAGs, are supported.

Streaming Delay Template

A template that defines real-time measurement of FD and IFDV from delay-based Performance Management tests. Average values are calculated over 10-to-60 second intervals and stream in real-time.

NSP supports delay streaming using gNMI, for 7750 SR NEs.

Twamp Server

TWAMP is a delay/loss measurement protocol that uses both the TCP connection service and the UDP session service. A TWAMP server may be configured to accept TCP control connections from a specified range of IP networks and TCP ports; also, it will accept requests for clients to initiate UDP test sessions for specific IP address or UDP port pairs on the service router.  

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Twamp-light Reflector (Router)

A Twamp-light reflector controls the set of IP network and UDP ports where the service router replies to TWAMP-light test messages. TWAMP light reflectors may be configured for both base and service routing instances.

Auto-create/update of TWAMP-light reflectors is supported when starting TWL based tests.

Twamp-light Reflector (Service)