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RICi-4E1/T1, RICi-8E1/T1 Ver. 2.0 Introduction C-1

Appendix C

Operation,

Administration, and

Maintenance (OAM)

This appendix describes the Ethernet OAM functionality of

RICi-4E1/T1, RICi-8E1/T1.

C.1 Introduction

Currently RICi-4E1/T1, RICi-8E1/T1 support pre-standard implementation of

Ethernet OAM based on Y.1731 and standard implementation based on Y.1731

and IEEE P802.1ag. The pre-standard implementation is used only for

performance measurements when using two RAD units working opposite each

other or when working opposite a RAD device with an older version of RAD

Ethernet OAM. This appendix describes the pre-standard implementation. The

standard implementation can be found in Y.1731 and IEEE P802.1ag.

RICi-4E1/T1, RICi-8E1/T1 have the following capabilities for providing operation,

administration, and maintenance (OAM) in packet-switched networks:

• Continuity check

• Non-intrusive loopback which used to detect loss of bidirectional continuity

• Performance measurements (per service).

Table

C-1

lists the Ethernet OAM-related terms used in this appendix.

Table

C-1. Ethernet OAM Terminology

Term Description

UNI User Network Interface. The physical demarcation point

between the responsibility of the Service Provider and the

responsibility of the Subscriber

UNI_C Customer side of a UNI link

UNI_N Network side of a UNI link

Service frame An Ethernet frame transmitted across the UNI toward the

Service Provider or an Ethernet frame transmitted across the

UNI toward the Subscriber.

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RAD Data comm T1 Spécifications Page 141