Operator-1 maintenance domain-level that has MEP-A and MEP-B at its Two service providers- Operator-1 and Operator-2-areĬonsidered for illustration purposes. Service provider level and a customer level. In the scenario depicted in Figure 1 on page xyz, you have a Management for service providers who provide carrier Ethernet services MX Series routers support ITU-T Y.1731 ETH-AIS to provide fault Or avail a refund from their Internet provider based on service unavailability. Service providers can provide a refund to their subscribers Service providers need not raise alarms if there are lower-level Using ETH-AIS, a service provider can differentiate betweenĮTH-AIS provides many advantages that include: Note that ETH-AIS is not applicable to Spanning Tree ProtocolĮTH-AIS enables you to suppress alarms when a fault condition Server layer and the alarms are suppressed at the server layer by Termination function then runs the OAM mechanisms specific to the Services (ETH) layer MEPs when it detects a failure. For information about maintenanceĭomain and related terms, see Terms Defined.Īccording to the Y.1731 standards, a server MEP is a combinedįunction of the server layer termination function and the server Ethernet OAM (ETH-VSP), and performance monitoring. Protection switching (ETH-APS), Ethernet maintenance communicationĬhannel (ETH-MCC), Ethernet experimental OAM (ETH-EXP), Ethernet vendor-specific Signal (ETH-LCK), Ethernet test signal (ETH-Test), Ethernet automatic Networks, including OAM functions such as ETH-AIS, Ethernet locked ITU-T developed Y.1731 as a recommendation for Operation, Administration,Īnd Maintenance (OAM) functions and mechanisms for Ethernet-based Understanding ETH-AIS in a Maintenance Domain
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