JUNOS 8.2 Interfaces Command Reference

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

Options

interface-name — (Optional) Display link fault management information for the specified Ethernet interface only.

Required Privilege Level

List of Sample Output

Output Fields

Table 32 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 established link. Fail—A link fault condition exists. OK—A link fault condition does not exist.	All levels
Discovery state	OAM provides a mechanism to detect the presence of an OAM sublayer at the remote DTE. This mechanism is called Discovery, and 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 OAMPDUs. Falseindicates that OAM client has not seen remote state information. Trueindicates 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 OAMPDU. In loopback mode, every frame received is transmitted back on the same port (except for OAMPDUs, 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-OAMPDUs to the lower sublayer or discarding non-OAMPDUs. Remote parser action—Indicates the state of the parser function of the OAM sublayer. Device is forwarding non-OAMPDUs to higher sublayer, looping back non-OAMPDUs to the lower sublayer, or discarding non-OAMPDUs. 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 OAMPDU, 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	Indicates the number of detected received errored frames in an event.	detail
OAM received frame period error event information	Indicates the number of detected received errored frames in the period.	detail
OAM transmitted frame error event information	Indicates the 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

show oam ethernet link-fault-management