Service Oam Standards - FibroLAN Falcon Gen-3 M-Class User Manual

Falcon M-Class | User Guide
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Service OAM Standards

Service OAM" is a common term for the ITU-T Y.1731, IEEE802.1ag, all covering Operation,
Administration and Maintenance These standards cover monitoring and error detection
functionalities, which are key weaknesses in the standard Ethernet.
Service Level Agreement (SLA) Management is a necessary tool for carriers, required to ensure that
customers are getting the service they have purchased. It is valuable to manage services from the
perspective of the end-user in addition to providing element and network management
capabilities. The correlation and tracking of QoS per service allow the network operator to offer
end-users active reports on the health, status and SLA adherence of their service over time.
Planned network maintenance, active outage detection and identification of users or services
affected by network events are facilitated across all network layers and allow operators to detect,
diagnose and prioritize failure or degradation events with network active monitor, and mitigate
problems.
Fault Management implements a service-layer OAM based on the IEEE 802.1ag protocol and the
ITU Y.1731 protocol, which complement each other and enable full service OAM.
Service OAM contains a suite of OAM functionalities which can be divided into two main groups:
Fault management and Performance Management.
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OAM functions for Fault Management
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Ethernet Continuity Check (ETH-CC)
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Ethernet Loopback (ETH-LB)
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Ethernet Link Trace (ETH-LT)
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Ethernet Alarm Indication Signal (ETH-AIS)
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Ethernet Remote Defect Indication (ETH-RDI)
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Ethernet Locked Signal (ETH-LCK)
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Ethernet Test Signal (ETH-Test)
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Ethernet Automatic Protection Switching (ETH-APS)
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OAM Functions for Performance Monitoring (Y.1731 Only)
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Frame Loss Measurement (ETH-LM)
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Frame Delay Measurement (ETH-DM)
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Throughput Measurement
The "Service OAM" allows an operator to detect, locate and verify faults for an Ethernet service.
The Connectivity Check protocol allows the operator to monitor the services continuously through
data-path. Once a failure is detected, the Loopback and Link trace protocols are used on-demand to
further diagnose the failure. The Service OAM is useful for multipoint as well as point-to-point
Ethernet services.
Scalability of the Service OAM is accomplished via the use of maintenance domains. A maintenance
domain is defined by the network operator as a network area with its own management and
administration requirements. Maintenance domains can be defined in hierarchical order to
distinguish between different types of network users (e.g. Customer Domain, Service-provider
Domain, Operator Domain, etc.).
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