Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Configuration Manual

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Table 14: show ethernet oam lfm summary Output Fields (continued)
Field Description Field Name
State of the discovery mechanism:
■
Fault—When the discovery process enters the Fault state,
the local PDU value is set based on the value of local link
status field. While the local link status is set to Fail, the local
OAM entity remains in this state indicating to the remote
peer there is link fault. This condition is accomplished by
sending Information OAM PDUs once per second with the
Link Fault bit of the Flags field set and no Information TLVs
in the Data field
■
Active send local—A local entity configured in Active mode
sends Information OAM PDUs that only contain the Local
Information TLV. This state is referred to as Active Send
Local. While in this state, the local entity waits for
Information OAM PDUs received from the remote entity
■
Passive wait—An entity configured in passive mode waits
until receiving Information OAM PDUs with Local
Information TLVs before sending any Information OAM
PDUs with Local Information TLVs. This state is called
Passive Wait. By waiting until first receiving an Information
OAM PDU with the Local Information TLV, a passive entity
cannot complete the OAM Discovery process when
connected to another entity in passive mode
■
Send any—After an OAM PDU has been received indicating
the remote device is satisfied with the respective settings,
the local device enters the SEND_ANY state. This is the
expected normal operating state for OAM on fully
operational links
■
Send local remote—After the local entity has received an
Information OAM PDU with the Local Information TLV from
the remote entity, the local entity begins sending
Information OAM PDUs that contain both the Local and
Remote Information TLVs. This state is called Send Local
Remote. If at any time the settings on either the local or
remote entity change resulting in the local OAM client
becoming unsatisfied with the settings, the discovery process
returns to the Send Local Remote state
■
Send local remote ok—If the local OAM client deems the
settings on both the local and remote entities are
appropriate, it enters the Send Local Remote Ok state. If at
any time the settings on the local OAM client change
resulting in the remote OAM client becoming unsatisfied
with the settings, the OAM discovery process returns to the
Send Local Remote Ok state
Discovery State
260 ■
Monitoring OAM Link-Fault Management Sessions on All Configured Interfaces
JUNOSe 11.1.x Link Layer Configuration Guide