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JUNOS 10.1 Network Interfaces Configuration Guide
Table 73: ETH-DM Statistics (continued)
Field Name
†
Average delay variation
Best-case delay †
Worst-case delay †
†
When you start a one-way frame delay measurement, the CLI output displays
ETH-DM statistics are collected at the remote (receiver) MEP. Statistics for a given one-way ETH-DM session are available only
by displaying CFM statistics for the receiver MEP.
ETH-DM Statistics Retrieval
At the receiver MEP for a one-way session, or at the initiator MEP for a two-way
session, you can display all ETH-DM statistics collected at a CFM session level by
using the following operational commands:
ETH-DM Frame Counts
The number of ETH-DM PDU frames exchanged in a ETH-DM session are stored in
the CFM database on each router.
Table 74 on page 751 describes the ETH-DM frame counts collected in an ETH-DM
session.
750
Guidelines for Managing ETH-DM Statistics and ETH-DM Frame Counts
Field Description
When you start a two-way frame delay measurement, the CLI output includes a runtime display
of the average two-way frame delay variation among the statistics collected for the ETH-DM
session only.
When you display ETH-DM statistics using a
displays the average one-way and two- frame delay variations among all ETH-DM statistics
collected at the CFM session level.
When you start a two-way frame delay measurement, the CLI output includes a runtime display
of the lowest two-way frame delay value among the statistics collected for the ETH-DM session
only.
When you display ETH-DM statistics using a
the lowest one-way and two-way frame delays among all ETH-DM statistics collected at the CFM
session level.
When you start a two-way frame delay measurement, the CLI output includes a runtime display
of the highest two-way frame delay value among the statistics collected for the ETH-DM session
only.
When you display ETH-DM statistics using a
the highest one-way and two-way frame delays among all statistics collected at the CFM session
level.
show oam ethernet connectivity-fault-management delay-statistics
maintenance-domain md-name maintenance-association ma-name <local-mep mep-id>
<remote-mep mep-id> <count count>
show oam ethernet connectivity-fault-management mep-statistics
maintenance-domain md-name maintenance-association ma-name <local-mep mep-id>
<remote-mep mep-id> <count count>
show
command, the
Average delay variation
show
command, the
Best case delay
show
command, the
Worst case delay
NA
("not available") for this field. One-way
field
field displays
field displays
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