PDF
name MEF 23.2.1.pdf

Abstract

This amendment makes the following changes to MEF 23.2

Abstract:

"In order to provide differentiated levels of service, it is necessary to classify incoming frames to a service level either based on context (e.g., which EVC or OVC) or content (i.e, the contents of a specific field within the frame).

MEF 10.3 - Ethernet Services Attributes and MEF 26.2 - ENNI provide attributes for associating each ingress frame with a Class of Service Name (CoS Name) for this purpose. Those specifications also provide attributes for associating each ingress frame with a color.

This Implementation Agreement formalizes the CoS Name and defines three specific CoS Names called Class of Service Labels (CoS Labels).

For frames associated with a CoS Label, this IA provides:

• values for fields containing the CoS identifier
• values for fields containing the frame color
• definition of Performance Tiers. Performance Tiers provide a way to define sets of performance objectives based on inherent characteristics of the service (primarily geographic span).
• specific performance objectives. Required values for performance objectives are specified in this document for service with a Class of Service identified by one of the MEF CoS Labels.
• requirements associated with bandwidth profile applicability to frames associated with the CoS Labels.

:

• Changes are made to Section 8.6.1 of MEF 23.2 to generalize certain requirements to apply to CoS Names instead of just CoS Labels.

• A new normative section is added that defines a set of token sharing Bandwidth Profile models. These models allow for multiple Bandwidth Profile Flows in an Envelope thus enabling token sharing among the Bandwidth Profile Flows.

• New terms are added to the Terminology table of MEF 23.2

• A new appendix is added that describes use cases for the defined token sharing Bandwidth Profile models.

Download