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NE20E-S2 V800R010C10SPC500 Feature Description - Network Reliability 01

This is NE20E-S2 V800R010C10SPC500 Feature Description - Network Reliability
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Remote Defect Indication

Remote Defect Indication

Remote defect indication (RDI) enables a maintenance entity group end point (MEP) to send continuity check messages (CCMs), each carrying an RDI flag, to notify a remote MEP (RMEP) of faults.

The RDI implementation is as follows:

  • After a local MEP detects a link fault using the continuity check (CC) function, the local MEP sets the RDI flag to 1 in CCMs and sends the CCMs along a reverse path to notify its RMEP of the fault.

  • After the fault is rectified, the local MEP sets the RDI flag to 0 in CCMs and sends them to inform the RMEP that the fault is rectified.

NOTE:
  • The RDI function is associated with the proactive continuity check function and takes effect only after the continuity check function is enabled.
  • The RDI function applies only to bidirectional links. In the case of a unidirectional LSP, before RDI can be used, a reverse path must be bound to the LSP.
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Updated: 2019-01-02

Document ID: EDOC1100055473

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