Listed below the descriptions of the TDM alarms that can be detected/transmitted on the port. LOF: This condition occurs on the framed TDM port when the local end of the TDM port is in Loss of Frame state. The mismatch in the transmitted framing format in the local end and the configured framing format in the remote end results in the Loss of Frame state in the local end of the TDM port. TxRAI: This condition occurs on the framed TDM port due to either of the two cases. One, when there is a mismatch in the configured and received framing format. In this case, the transmission of remote alarm indication is triggered by the Loss of Frame state in the local end of the TDM port. Secondly, in the presence of CES pseudo-wires on the TDM port, when the remote end of the CES pseudo-wire sendsan RDI (Remote defect indicator) signal, RAI is transmitted on the TDM port. RxRAI: This condition occurs on the framed TDM port due to either of the two cases. One, the Loss of Frame state in the remote end of the TDM port. Secondly, the application associated with the remote end of the TDM port tunnels the alarm indication to the local end. The mismatch in the transmitted framing format in the local end and the configured framing format in the remote end results in the Loss of Frame state in the remote end of the TDM port. TxAIS: This condition occurs on the unframed TDM port due to either of the two cases. One, the AIS is transmitted on the TDM port by default in the absence of loopback or CES pseudo-wire configuration. Secondly, in the presence of CES pseudo-wires on the TDM port, the AIS is transmitted to indicate the remote end pseudo-wire faults, namely, local end loss of packet state and remote end attachmentcircuit fault. RxAIS: This condition occurs on the framed TDM port when the remote end of the TDM porttransmits an AIS alarm indication.
Listed below the suggestions that can be tried when the TDM alarm is detected/transmitted on the port. LOF: The framing configuration in the local and remote end of the TDM port needs to be reviewed. If no configuration deviations are observed, the fault due to unstable clock can be isolated by performing loopback tests on the local and/or remote end of the TDM port. TxRAI: If there are CES pseudo-wires defined on the port, the pseudo-wire remote fault can be referred to. In the presence of attachment circuit Tx fault, no action isrequired. If there are no CES pseudo-wires defined, the framing configuration onthe TDM port needs to be reviewed. Additionally, if no configuration deviations are observed, the fault due to unstable clock can be isolated by performing loopback tests on the local and/or remote end of the TDM port. This condition, if occurs on the unframed TDM port, can be cleared by administratively disabling and enabling the TDM port. The following framing configuration in local/remote would cause RAI to be generated from the local end: Local (DUT) Remote ------------------------------------------------------- E1: Basic Unframed Multiframe Unframed / Basic CRC4 enabled CRC4 disabled T1: SuperFrame (SF) Unframed / ESF Extended SuperFrame (ESF) Unframed / SF RxRAI: If this condition occurs due to the Loss of Frame state in the remote end of theTDM port, the framing configuration on the TDM port needs to be reviewed. Additionally, if no configuration deviations are observed, the fault due to unstable clock can be isolated by performing loopback tests on the local and/or remote end of the TDM port. If this condition occurs due to the application associated with the remote end of the TDM port, no action to be taken. This condition, if occurs on the unframed TDM port, can be cleared by administratively disabling and enabling the TDM port. TxAIS: If no CES pseudo-wire is configured on the TDM port, no action is required. If CES pseudo-wires are configured on the TDM port, the pseudo-wire fault information should be referred to for the remote end fault indication. This condition,if occurs on a framed TDM port or occurs on an unframed TDM port with no remote end fault indication in the CES pseudo-wire, can be cleared by administratively disabling and enabling the TDM port. RxAIS: This condition requires no action to be performed. If CES pseudo-wires are present on the TDM port, this condition is signalled as local attachment circuitRx fault.
Notice
Port %port% %alarmState% %alarmAction%
| Name | Type |
|---|---|
| port | String |
| alarmState | String |
| alarmAction | String |
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