Technical Documentation

Downloads
show oam ethernet link-fault-management

show oam ethernet link-fault-management

Syntax


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

Release Information

Command introduced in JUNOS Release 9.4 for EX Series switches.

Description

Displays Operation, Administration, and Maintenance (OAM) link fault management (LFM) 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 detail

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.

Table 1: 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. Running—A link fault condition does not exist.	All levels
Discovery state	State of the discovery mechanism: Passive Wait Send Any Send Local Remote Send Local Remote Ok	All levels
Peer address	Address of the OAM peer.	All levels
Flags	Information about the interface. Remote-Stable—Indicates remote OAM client acknowledgment of, and satisfaction with local OAM state information. False indicates that remote DTE has either 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 not supported. Link events—Indicates whether interpreting link events is supported or not supported on the remote peer. Variable requests—Indicates whether variable requests are supported or not supported. The Variable Request OAM PDU, is used to request one or more MIB variables from the remote peer.	All levels
OAM Receive Statistics
Information	The number of information PDUs received.	detail
Event	The number of loopback control PDUs received.	detail
Variable request	The number of variable request PDUs received.	detail
Variable response	The number of variable response PDUs received.	detail
Loopback control	The number of loopback control PDUs received.	detail
Organization specific	The number of vendor organization specific PDUs received.	detail
OAM Transmit Statistics
Information	The number of information PDUs transmitted.	detail
Event	The number of event notification PDUs transmitted.	detail
Variable request	The number of variable request PDUs transmitted.	detail
Variable response	The number of variable response PDUs transmitted.	detail
Loopback control	The number of loopback control PDUs transmitted.	detail
Organization specific	The 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 after 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 after 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 after 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 after 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 after 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 after the OAM sublayer was reset.	detail
OAM Transmitted Symbol Error Event Information
Events	The number of symbol error event TLVs that have been transmitted after 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 after the OAM sublayer was reset.	detail
OAM Transmitted Frame Error Event Information
Events	The number of errored frame event TLVs that have been transmitted after 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 after the OAM sublayer was reset.	detail

Sample Output

show oam ethernet link-fault-management brief

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

Interface: ge-0/0/1
  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-0/0/1
    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