Cisco ASR 920 series, Configuration Manual Ethernet Router

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C H A P T E R
14
ITU-T Y.1731 Performance Monitoring in a
Service Provider Network
ITU-T Y.1731 performance monitoring provides standard-based Ethernet performance monitoring that
encompasses the measurement of Ethernet frame delay, frame-delay variation, and throughput as outlined
in the ITU-T Y.1731 specification and interpreted by the Metro Ethernet Forum (MEF). Service providers
offer service level agreements (SLAs) that describe the level of performance customers can expect for
services. This document describes the Ethernet performance management aspect of SLAs.
• Prerequisites for ITU-T Y.1731 Performance Monitoring in a Service Provider Network, page 321
• Restrictions for ITU-T Y.1731 Performance Monitoring in a Service Provider Network , page 321
• Information About ITU-T Y.1731 Performance Monitoring in a Service Provider Network, page 322
• How to Configure ITU-T Y.1731 Performance Monitoring in a Service Provider Network, page 324
• Configuration Examples for Configuring ITU-T Y.1731 Performance Monitoring Functions, page 325
• Feature Information for ITU-T Y.1731 Performance Monitoring in a Service Provider Network, page
325
Prerequisites for ITU-T Y.1731 Performance Monitoring in a
Service Provider Network
• IEEE-compliant connectivity fault management (CFM) must be configured and enabled for Y.1731
performance monitoring to function.
Restrictions for ITU-T Y.1731 Performance Monitoring in a
Service Provider Network
• A frame-delay measurement message (DMM) with CFMoXconnect on a Cisco ASR 920 router works
only if the
control-word command is enabled. If the remote end of the pseudowire does not enable the
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
321