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show oam ethernet connectivity-fault-management mep-statistics

 

Syntax

Release Information

Command introduced in Junos OS Release 9.5.

Command introduced in Junos OS Release 11.4 for EX Series switches.

Support for ITU-T Y.1731 Ethernet synthetic frame loss measurement (ETH-SLM) added in Junos OS Release 13.2 for MX Series routers.

Description

On MX Series and ACX Series routers and EX Series switches with Ethernet interfaces, display ETH-DM statistics and ETH-DM frame counts.

For Ethernet interfaces on MX Series routers, display any ITU-T Y.1731 synthetic frame loss measurement (ETH-SLM) statistics and frame counts.

Options

maintenance-domain md-nameName of an existing CFM maintenance domain.
maintenance-association ma-nameName of an existing CFM maintenance association.
mep mep-id(Optional) Numeric identifier of the local MEP. The range of values is 1 through 8192. On EX Series switches, the range of values is 1 through 8191.
remote-mep remote-mep-id(Optional) Numeric identifier of the remote MEP. The range of values is 1 through 8192. On EX Series switches, the range of values is 1 through 8191.
count entry-count(Optional) Number of entries to display from the statistics table. The range of values is 1 through 100. The default value is 100 entries.

Required Privilege Level

view

List of Sample Output

show oam ethernet connectivity-fault-management mep-statistics (CIR counters only)

show oam ethernet connectivity-fault-management mep-statistics (CIR and EIR counters enabled)

show oam ethernet connectivity-fault-management mep-statistics remote-mep (CIR counters only)

show oam ethernet connectivity-fault-management mep-statistics remote-mep (CIR and EIR counters enabled)

show oam ethernet connectivity-fault-management mep-statistics

show oam ethernet connectivity-fault-management mep-statistics remote-mep

show oam ethernet connectivity-fault-management mep-statistics local-mep remote-mep

Output Fields

Table 1 lists the output fields for the show oam ethernet connectivity-fault-management mep-statistics command. Output fields are listed in the approximate order in which they appear.

Table 1: show oam ethernet connectivity-fault-management delay-statistics and mep-statistics Output Fields

Output Field Name

Field Description

MEP identifier

Maintenance association end point (MEP) numeric identifier.

MAC address

Unicast MAC address configured for the MEP.

Remote MEP count

Number of remote MEPs (unless you specify the remote-mep option).

CCMs sent

Number of continuity check messages (CCMs) sent.

CCMs received

Number of continuity check messages (CCMs) received for a specific remote MEP and maintenance association.

CCMs received out of sequence

Number of continuity check messages (CCMs) received that were not in sequence.

Remote MEP identifier

Numeric identifier of the remote MEP.

Remote MAC address

Unicast MAC address of the remote MEP.

Index

Index number that corresponds to the ETH-DM entry in the CFM database.

One-way delay (usec)

For a one-way ETH-DM session, the frame delay time, in microseconds, measured at the receiver MEP.

For a detailed description of one-way Ethernet frame delay measurement, see the ITU-T Y.1731 Ethernet Service OAM topics in the Junos OS Network Interfaces Library for Routing Devices.

Two-way delay (usec)

For a two-way ETH-DM session, the frame delay time, in microseconds, measured at the initiator MEP.

For a detailed description of two-way Ethernet frame delay measurement, see the ITU-T Y.1731 Ethernet Service OAM topics in the Junos OS Network Interfaces Library for Routing Devices.

Average one-way delay

Average one-way frame delay for the statistics displayed.

Average one-way delay variation

Average one-way “frame jitter” for the statistics displayed.

Best-case one-way delay

Lowest one-way frame delay for the statistics displayed.

Worst-case one-way delay

Highest one-way frame delay for the statistics displayed.

Average two-way delay

Average two-way frame delay for the statistics displayed.

Average two-way delay variation

Average two-way “frame jitter” for the statistics displayed.

Best-case two-way delay

Lowest two-way frame delay for the statistics displayed.

Worst-case two-way delay

Highest two-way frame delay calculated in this session.

SLM packets sent

Total number of synthetic loss message (SLM) PDU frames sent from the source MEP to the remote MEP during this ETH-SLM session.

SLM packets received

Total number of synthetic loss message (SLM) PDU frames that the remote MEP received from the source MEP during this ETH-SLM session.

SLR packets sent

Total number of synthetic loss reply (SLR) PDU frames that the remote MEP sent to the source MEP during this measurement session.

SLR packets received

Total number of synthetic loss reply (SLR) PDU frames that the source MEP received from the remote MEP during this measurement session.

Local TXFC1 value

Number of synthetic frames transmitted to the peer MEP for a test ID. A test ID is used to distinguish each synthetic loss measurement because multiple measurements can be simultaneously activated also on a given CoS and MEP pair. It must be unique at least within the context of any SLM for the MEG and initiating MEP.

Local RXFC1 value

Number of synthetic frames received from the peer MEP for a test ID. The MEP generates a unique Test ID for the session, adds the source MEP ID, and initializes the local counters for the session before SLM initiation. For each SLM PDU transmitted for the session (test ID), the local counter TXFC1 is sent in the packet.

Last Received SLR frame TXFCf(tc)

Value of the local counter TxFCl at the time of SLM frame transmission.

Last Received SLR frame TXFCb(t

Value of the local counter RxFCl at the time of SLR frame transmission.

Frame loss (near-end)

Count of frame loss associated with ingress data frames.

Frame loss (far-end)

Count of frame loss associated with egress data frames.

Sample Output

show oam ethernet connectivity-fault-management mep-statistics (CIR counters only)

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma-1 local-mep 3 remote-mep 103 count 3

show oam ethernet connectivity-fault-management mep-statistics (CIR and EIR counters enabled)

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma-1 local-mep 3 remote-mep 103 count 3

show oam ethernet connectivity-fault-management mep-statistics remote-mep (CIR counters only)

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma-1 local-mep 3 remote-mep 103 count 3 remote-mep 101

show oam ethernet connectivity-fault-management mep-statistics remote-mep (CIR and EIR counters enabled)

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma-1 local-mep 3 remote-mep 103 count 3 remote-mep 101

show oam ethernet connectivity-fault-management mep-statistics

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma-1

show oam ethernet connectivity-fault-management mep-statistics remote-mep

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma1 remote-mep 101

show oam ethernet connectivity-fault-management mep-statistics local-mep remote-mep

user@host> show oam ethernet connectivity-fault-management mep-statistics maintenance-domain md1 maintenance-association ma1 local-mep 121 remote-mep 101