Viewing Packet Loss Results
  • 04 Nov 2024
  • 2 Minutes to read
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Viewing Packet Loss Results

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Article summary

Packet loss results are calculated with the received CCM during the reference period.

To view details of packet loss results

  1. Access the page SOAM ▶ CFM ▶ Packet Loss ▶ Results.
    A summary of results for all packet loss instances is displayed.

  2. Click the Index of the packet loss instance you want to view the packet loss results.

For more information on specific parameters, refer to the following table.

Packet Loss Results (SOAM ▶ CFM ▶ Packet Loss ▶ Results)

ParameterDescription
IndexThe packet loss instance unique identifier
NameThe name of the packet loss instance
MEP Index

MEP idx

The index assigned to the Maintenance association End Point
MEPIDThe local Maintenance association End Point Identifier
Remote MEPID

R-MEPID

The remote Maintenance association End Point Identifier

Note: A peer MEP should have the sequence number enabled to allow a local MEP to perform CCM-based packet loss measurements.

PriorityThe priority value to be used in VLAN tags, if present, in the transmitted frame. Same as MEP's CCM priority.
PeriodThe number of periods that have elapsed since measurement started

The previous period is indicated in Period Time.

Continuous Results in the section below gives the packet loss since the last time the statistics were cleared.

Period TimeThe time when the current period results were moved to the previous period results.
Packet Loss AlarmIndicates if an alarm is raised (Active) because the number of packets lost, for the current period, is greater that the packet loss threshold
Packet Loss Ratio

Loss %

Packet loss ratio expressed as a percentage
Nbr PacketsNumber of expected packets during the reference period. This should normally correspond to the reference period divided by the interval unless the period is incomplete.
Nbr Packets LostNumber of packets lost during the period. For the current period, it is a continuous value that is not set to zero at the beginning of the period. The current period counter is organized as FIFO where a new packet loss result is put into the start and the oldest packet loss result is removed at each interval.
Nbr GapsThe total number of gaps that have been detected from the sequence of packets that were received during the interval

This counter is reset to zero at the beginning of each period.

Largest Gap Size

Largest Gap

The longest uninterrupted sequence of missing packets that was detected during the period

This counter is reset to zero at the beginning of each period.

Operational StatusThe Packet Loss operational status code. Valid values are:
  • INAC: Feature is inactive
  • UNLK: Remote device is unlinked
  • WAPP: Waiting for an application that supports the Packet Loss to become active
  • PROG: Remote device is currently being programmed
  • FAIL: Remote device has encountered a failure
  • ACT: Remote device is active and fully functional

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