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Configuring and Starting a Test

Ethernet Tester Analyzer 77

OAM

An important task for service providers is to provide high quality of

administrating and maintenance for Ethernet-networks. To regulate these

tasks the IEEE 802.3ah [8] standard (also known as Ethernet in the First

Mile (EFM) OAM) was worked out.

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

monitoring the link state. 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. Both unit should support the IEEE 802.3ah

standard and should be connected directly.

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

Loopback mode for the remote end.

 Port: Select a Port for OAM configuring.

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Exfo ETS-1000 Manual do Utilizador Página 85