Exfo ETS-1000L Manuel d'utilisateur télécharger pdf (Page 24)

Remote Management

18 ETS-1000L

OAM

OAM (Operations, Administration, and Maintenance) is a protocol of the

link state monitoring. The protocol operates at the Data Link Layer of OSI

model. To transmit data between two Ethernet-units, OAM protocol data

units (OAMPDU) are used.

An important feature of the OAM protocol is to provide the ability to use

Loopback mode for the remote end. Both units should support the IEEE

802.3ah standard.

ETS-1000L and remote unit should be connected directly. Possible OAM

states are described below.

 Passive: In passive mode, the port can only response to Ethernet OAM

commands from the remote unit, but cannot initiate the Loopback

mode.

 Off: OAM is disabled.

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Exfo ETS-1000L Manuel d'utilisateur Page 24