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Configuring Statistical Frame Loss Measurement for VPLS Connections

Using proactive statistical frame loss measurement, you can monitor VPLS connections on MX Series routers . Statistical frame loss measurement allows you to monitor the quality of Ethernet connections for service level agreements (SLAs). Point-to-point and multipoint-to-multipoint connections configured on MX Series routers can be monitored by registering the connection on an iterator and initiating periodic SLA measurement of frame transmissions on the connections.

Iterators periodically transmit SLA measurement packets using ITU-Y.1731 compliant frames. The iterator sends periodic measurement packets for each of the connections registered to it. These measurement cycles are transmitted in such a way as to not overlap, reducing the processing demands placed on the CPU. The measurement packets are exchanged between the source user network interface (UNI) port and the destination UNI port, providing a sequence of timed performance measurements for each UNI pair. The Frame Loss Ratio (FLR) and connection availability can be computed from these measurements using statistics.

The following steps outline how to configure statistical frame loss measurement for VPLS connections:

  1. To configure proactive ETH-DM measurement for a VPLS connection, see Guidelines for Configuring Routers to Support an ETH-DM Session.
  2. To enable statistical loss measurement for a VPLS connection, configure an iterator for the VPLS connection using the sla-iterator-profiles statement at the [edit protocols oam ethernet connectivity-fault-management performance-monitoring] hierarchy level. For detailed instructions, see Configuring an Iterator Profile.
  3. As part of the iterator configuration, include the statistical-frame-loss option for the measurement-type statement at the [edit protocols oam ethernet connectivity-fault-management performance-monitoring sla-iterator-profiles profile-name] hierarchy level.
  4. Once you have enabled the iterator, you can display the statistical frame loss for a VPLS connection by issuing the show oam ethernet connectivity-fault-management sla-iterator-statistics sla-iterator identifier maintenance-domain name maintenance-association name local-mep identifier remote-mep identifier command.
 

Related Documentation

 

Published: 2013-02-13

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