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show oam ethernet link-fault-management

Syntax

show oam ethernet link-fault-management
<brief | detail>
<interface-name>

Release Information

Command introduced in JUNOS Release 8.2.

Description

On M320, M120, MX960, T320, and T640 routing platforms, display Operation, Administration, and Monitoring (OAM) link fault management information for Ethernet interfaces.

Options

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 detail

Output Fields

Table 36 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.

Table 36: show oam ethernet link-fault-management Output Fields

Field Name

Field Description

Level of Output

Status

Indicates the status of the established link.

  • Fail—A link fault condition exists.
  • OK—A link fault condition does not exist.

All levels

Discovery state

Mechanism to detect the presence of an OAM sublayer at the remote DTE. It consists of several states.

All levels

Peer address

Destination address.

All levels

Flags

Information about the interface. Possible values are described in Link Flags.

  • Remote-Stable—Iindicates 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.
  • Dicovery 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—Supports interpreting or not interpreting link events.
  • 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.

All levels

OAM receive statistics

Received OAM PDU statistics information.

detail

OAM transmit statistics

OAM PDU transmit statistics information.

detail

OAM received symbol error event information

Number of symbols, where the number of errored symbols exceeded a threshold.

detail

OAM received frame error event information

Number of detected received errored frames in an event.

detail

OAM received frame period error event information

Number of detected received errored frames in the period.

detail

OAM transmitted frame error event information

Number of detected transmitted errored frames in the period.

detail

Remote entity information

Information from the remote information TLV is a copy of the last received local information TLV from the remote OAM peer.

detail

show oam ethernet link-fault-management brief

user@host> show aom ethernet link-fault-management brief 
Interface: ge-3/1/3
  Status: Running, Discovery state: Send Any
  Peer address: 00:90:69:72:2c:83
  Flags:Remote-Stable Remote-State-Valid Local-Stable 0x50
  Remote loopback status: Disabled on local port, Enabled on peer port
  Remote entity information:
    Remote MUX action: discarding, Remote parser action: loopback
    Discovery mode: active, Unidirectional mode: unsupported
    Remote loopback mode: supported, Link events: supported
    Variable requests: unsupported

show oam ethernet link-fault-management detail

user@host> show oam ethernet link-fault-management detail 
  Interface: ge-6/1/0
    Status: Running, Discovery state: Send Any
    Peer address: 00:90:69:0a:07:14
    Flags:Remote-Stable Remote-State-Valid Local-Stable 0x50
    OAM receive statistics:
      Information: 186365, Event: 0, Variable request: 0, Variable response: 0
      Loopback control: 0, Organization specific: 0
    OAM transmit statistics:
      Information: 186347, Event: 0, Variable request: 0, Variable response: 0
      Loopback control: 0, Organization specific: 0
    OAM received symbol error event information:
      Events: 0, Window: 0, Threshold: 0
      Errors in period: 0, Total errors: 0
    OAM received frame error event information:
      Events: 0, Window: 0, Threshold: 0
      Errors in period: 0, Total errors: 0
    OAM received frame period error event information:
      Events: 0, Window: 0, Threshold: 0
      Errors in period: 0, Total errors: 0
    OAM transmitted symbol error event information:
      Events: 0, Window: 0, Threshold: 1
      Errors in period: 0, Total errors: 0
    OAM transmitted frame error event information:
      Events: 0, Window: 0, Threshold: 1
      Errors in period: 0, Total errors: 0
    Remote entity information:
      Remote MUX action: forwarding, Remote parser action: forwarding
      Discovery mode: active, Unidirectional mode: unsupported
      Remote loopback mode: supported, Link events: supported
      Variable requests: unsupported
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