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    Service-Level Agreement Measurement

    Service-level agreement (SLA) measurement is the process of monitoring the bandwidth, delay, delay variation (jitter), continuity, and availability of a service (E-Line or E-LAN). It enables you to identify network problems before customers are impacted by network defects.


    The Ethernet VPN services can be classified into:

    • Peer-to-peer-services (E-Line services)—The E-Line services are offered using MPLS-based Layer 2 VPN virtual private wire service (VPWS).

    • Multipoint-to-multipoint services (E-LAN services)—The E-LAN services are offered using MPLS-based virtual private LAN service (VPLS).

    For more information, see the Junos VPNs Configuration Guide.

    In Junos OS, SLA measurements are classified into:

    • On-demand mode—In on-demand mode, the measurements are triggered through the CLI.
    • Proactive mode—In proactive mode, the measurements are triggered by an iterator application.

    Note that Ethernet frame delay measurement and Ethernet frame loss measurement are also supported on the ae interface.

    Modified: 2016-01-28