Lantronix SISPM1040-xxxx-L3 Web User Guide
33856 Rev. A https://www.lantronix.com/ 60
Port Management > Link OAM > Port Settings
This page lets you set and view current Link OAM port parameters. OAM (Operation Administration and
Maintenance) is a protocol described in ITU-T Y.1731 used to implement Carrier Ethernet functionality.
MEP functions such as CC and RDI are based on this.
Port: The switch port number. Click a linked port number to display its Detailed Link OAM Status (see below).
OAM Enabled: Controls whether Link OAM is enabled on this switch port. Enabling Link OAM provides the
network operators the ability to monitor the health of the network and quickly determine the location of failing links
or fault conditions.
OAM Mode: Configures the OAM Mode as Active or Passive. The default mode is Passive.
Active: DTE's configured in Active mode initiate the exchange of Information OAMPDUs as defined by
the Discovery process. Once the Discovery process completes, Active DTE's are permitted to send any
OAMPDU while connected to a remote OAM peer entity in Active mode. Active DTE's operate in a limited
respect if the remote OAM entity is operating in Passive mode. Active devices should not respond to
OAM remote loopback commands and variable requests from a Passive peer.
Passive: DTE's configured in Passive mode do not initiate the Discovery process. Passive DTE's react to
the initiation of the Discovery process by the remote DTE. This eliminates the possibility of passive to
passive links. Passive DTE's shall not send Variable Request or Loopback Control OAMPDUs.
Loopback Support: Controls whether the loopback support is enabled for the switch port. Link OAM remote
loopback can be used for fault localization and link performance testing. Enabling the loopback support will allow
the DTE to execute the remote loopback command that helps in the fault detection.
Link Monitor Support: Controls whether the Link Monitor support is enabled for the switch port. On enabling the
Link Monitor support, the DTE supports event notification that permits the inclusion of diagnostic information.
MIB Retrieval Support: Controls whether the MIB Retrieval Support is enabled for the switch port. On enabling
the MIB retrieval support, the DTE supports polling of various Link OAM based MIB variables' contents.
Loopback Operation: If the Loopback support is enabled, enabling this field will start a loopback operation for
the port.
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