Cisco ASR 920 series Configuration Guide Ethernet Router

CHAPTER 13
Using Ethernet Operations Administration and
Maintenance
Ethernet Operations, Administration, and Maintenance (OAM) is a protocol for installing, monitoring, and
troubleshooting Ethernet metropolitan-area networks (MANs) and Ethernet WANs. It relies on a new, optional
sublayer in the data link layer of the Open Systems Interconnection (OSI) model. The OAM features covered
by this protocol are Discovery, Link Monitoring, Remote Fault Detection, Remote Loopback, and Cisco
Proprietary Extensions.
The advent of Ethernet as a MAN and WAN technology has emphasized the necessity for integrated
management for larger deployments. For Ethernet to extend into public MANs and WANs, it must be equipped
with a new set of requirements on Ethernet’s traditional operations, which had been centered on enterprise
networks only. The expansion of Ethernet technology into the domain of service providers, where networks
are substantially larger and more complex than enterprise networks and the user-base is wider, makes
operational management of link uptime crucial.
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Information About Using Ethernet Operations Administration and Maintenance, page 299
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How to Set Up and Configure Ethernet Operations Administration and Maintenance, page 304
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Configuration Examples for Ethernet Operations Administration and Maintenance, page 316
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Feature Information for Using Ethernet Operations, Administration, and Maintenance, page 319
Information About Using Ethernet Operations Administration
and Maintenance
Ethernet OAM
Ethernet OAM is a protocol for installing, monitoring, and troubleshooting metro Ethernet networks and
Ethernet WANs. It relies on a new, optional sublayer in the data link layer of the OSI model. Ethernet OAM
can be implemented on any full-duplex point-to-point or emulated point-to-point Ethernet link. A system-wide
implementation is not required; OAM can be deployed for part of a system; that is, on particular interfaces.
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
299

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English