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show oam ethernet link-fault-management

 

Syntax

Release Information

Command introduced in Junos OS Release 8.2.

Description

On EX Series switches and M320, M120, MX Series, T320, and T640 routers, display Operation, Administration, and Management (OAM) link fault management information for Ethernet interfaces.

Options

brief | detail(Optional) Display the specified level of output.
interface-name(Optional) Display link fault management information for the specified Ethernet interface only.

Required Privilege Level

view

List of Sample Output

show oam ethernet link-fault-management brief

show oam ethernet link-fault-management brief (Loopback tracking)

show oam ethernet link-fault-management detail

show oam ethernet link-fault-management detail (backup Routing Engine)

Output Fields

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

Field Name

Field Description

Level of Output

Status

Indicates the status of the OAM discovery state mechanism .

  • Down—Discovery mechanism is not running..

  • Running—Discovery mechanism is running.

All levels

Discovery state

State of the discovery mechanism. If the status of the discovery mechanism is Down then the state of discovery mechanism is Fault. However, if the status of the discovery mechanism is Running then the state can be any one of the following:

  • Passive Wait

  • Active Send Local

  • Send Any

  • Send Local Remote

  • Send Local Remote Ok

  • Fault

All levels

ISSU

Specifies that the local end is undergoing a unified in-service software upgrade (ISSU).

All levels

Peer address

Address of the OAM peer.

All levels

Flags

Information about the interface. Possible values are described in the “Link Flags” section under Common Output Fields Description.

  • Remote-Stable—Indicates remote OAM client acknowledgment of and satisfaction with local OAM state information. False indicates that remote DTE either has not seen or is unsatisfied with local state information.True indicates that remote DTE has seen and is satisfied with local state information.

  • Local-Stable—Indicates local OAM client acknowledgment of and satisfaction with remote OAM state information. False indicates that local DTE either has not seen or is unsatisfied with remote state information. True indicates that local DTE has seen and is satisfied with remote state information.

  • Remote-State-Valid—Indicates the OAM client has received remote state information found within Local Information TLVs of received Information OAM PDUs. False indicates that OAM client has not seen remote state information. True indicates that the OAM client has seen remote state information.

All levels

Remote loopback status

Indicates the remote loopback status. An OAM entity can put its remote peer into loopback mode using the Loopback control OAM PDU. In loopback mode, every frame received is transmitted back on the same port (except for OAM PDUs, which are needed to maintain the OAM session).

All levels

Remote entity information

Remote entity information.

  • Remote MUX action—Indicates the state of the multiplexer functions of the OAM sublayer. Device is forwarding non-OAM PDUs to the lower sublayer or discarding non-OAM PDUs.

  • Remote parser action—Indicates the state of the parser function of the OAM sublayer. Device is forwarding non-OAM PDUs to higher sublayer, looping back non-OAM PDUs to the lower sublayer, or discarding non-OAM PDUs.

  • Discovery mode—Indicates whether discovery mode is active or inactive.

  • Unidirectional mode—Indicates the ability to operate a link in a unidirectional mode for diagnostic purposes.

  • Remote loopback mode—Indicates whether remote loopback is supported or unsupported.

  • Link events—Indicates whether interpreting link events is supported or unsupported on the remote peer.

  • Variable requests—Indicates whether variable requests are supported. The Variable Request OAM PDU, is used to request one or more MIB variables from the remote peer.

  • Remote in ISSU—Indicates that the remote end is undergoing a unified in-service software upgrade (ISSU).

All levels

Loopback Tracking

Indicates that loopback detection is enabled or disabled.

All levels

Loop Status

Indicates that a loopback issue is either found, not found, or unknown when loopback tracking is enabled.

All levels

Detect LOC

Indicates that loss-of-continuity (LOC) detection is enabled or disabled.

All levels

LOC status

Indicates that a LOC issue is either found, not found, or unknown when Detect LOC is enabled. Status is unknown when LOC detection is disabled.

All levels

OAM Receive Statistics

Information

The total number of information PDUs received.

detail

Event

The total number of loopback control PDUs received.

detail

Variable request

The total number of variable request PDUs received.

detail

Variable response

The total number of variable response PDUs received.

detail

Loopback control

The total number of loopback control PDUs received.

detail

Organization specific

The total number of vendor organization specific PDUs received.

detail

OAM Transmit Statistics

Information

The total number of information PDUs transmitted.

detail

Event

The total number of event notification PDUs transmitted.

detail

Variable request

The total number of variable request PDUs transmitted.

detail

Variable response

The total number of variable response PDUs transmitted.

detail

Loopback control

The total number of loopback control PDUs transmitted.

detail

Organization specific

The total number of vendor organization specific PDUs transmitted.

detail

OAM Received Symbol Error Event information

Events

The number of symbol error event TLVs that have been received since the OAM sublayer was reset.

detail

Window

The symbol error event window in the received PDU.

The protocol default value is the number of symbols that can be received in one second on the underlying physical layer.

detail

Threshold

The number of errored symbols in the period required for the event to be generated.

detail

Errors in period

The number of symbol errors in the period reported in the received event PDU.

detail

Total errors

The number of errored symbols that have been reported in received event TLVs since the OAM sublayer was reset.

Symbol errors are coding symbol errors.

detail

OAM Received Frame Error Event Information

Events

The number of errored frame event TLVs that have been received since the OAM sublayer was reset.

detail

Window

The duration of the window in terms of the number of 100 ms period intervals.

detail

Threshold

The number of detected errored frames required for the event to be generated.

detail

Errors in period

The number of detected errored frames in the period.

detail

Total errors

The number of errored frames that have been reported in received event TLVs since the OAM sublayer was reset.

A frame error is any frame error on the underlying physical layer.

detail

OAM Received Frame Period Error Event Information

Events

The number of frame seconds errors event TLVs that have been received since the OAM sublayer was reset.

detail

Window

The duration of the frame seconds window.

detail

Threshold

The number of frame seconds errors in the period.

detail

Errors in period

The number of frame seconds errors in the period.

detail

Total errors

The number of frame seconds errors that have been reported in received event TLVs since the OAM sublayer was reset.

detail

OAM Transmitted Symbol Error Event Information

Events

The number of symbol error event TLVs that have been transmitted since the OAM sublayer was reset.

detail

Window

The symbol error event window in the transmitted PDU.

detail

Threshold

The number of errored symbols in the period required for the event to be generated.

detail

Errors in period

The number of symbol errors in the period reported in the transmitted event PDU.

detail

Total errors

The number of errored symbols reported in event TLVs that have been transmitted since the OAM sublayer was reset.

detail

OAM Current Symbol Error Event Information

Events

The number of symbol error TLVs that have been generated regardless of whether the threshold for sending event TLVs has been crossed.

detail

Window

The symbol error event window in the transmitted PDU.

detail

Threshold

The number of errored symbols in the period required for the event to be generated.

detail

Errors in period

The total number of symbol errors in the period reported.

detail

Total errors

The number of errored symbols reported in event TLVs that have been generated regardless of whether the threshold for sending event TLVs has been crossed.

detail

OAM Transmitted Frame Error Event Information

Events

The number of errored frame event TLVs that have been transmitted since the OAM sublayer was reset.

detail

Window

The duration of the window in terms of the number of 100 ms period intervals.

detail

Threshold

The number of detected errored frames required for the event to be generated.

detail

Errors in period

The number of detected errored frames in the period.

detail

Total errors

The number of errored frames that have been detected since the OAM sublayer was reset.

detail

OAM Current Frame Error Event Information

Events

The number of errored frame event TLVs that have been generated regardless of whether the threshold for sending event TLVs has been crossed.

detail

Window

The duration of the window in terms of the number of 100 ms period intervals.

detail

Threshold

The number of detected errored frames required for the event to be generated.

detail

Errors in period

The number of errored frames in the period.

detail

Total errors

The number of errored frames detected regardless of whether the threshold for transmitting event TLVs has been crossed.

detail

Sample Output

show oam ethernet link-fault-management brief

user@host> show oam ethernet link-fault-management brief

show oam ethernet link-fault-management brief (Loopback tracking)

user@host> show oam ethernet link-fault-management

show oam ethernet link-fault-management detail

user@host> show oam ethernet link-fault-management detail

show oam ethernet link-fault-management detail (backup Routing Engine)

user@host> show oam ethernet link-fault-management ge-0/2/0 detail