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Deep Dive on PUNT_FABRIC_DATA_PATH Diagnostic test ASR9000

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This document explain in  detail path taken by diag packets  in asr9000 which validates integrity  of the path between NP (network Processor) and RSP CPU.

As a  result of failure to receive diagnostics packets will result in  PLATFORM-DIAGS-3-PUNT-FABRIC_DATA_PATH_FAILED syslog which indicates  some underlaying issue in the data path between NP and RSP CPU.

Author: Mahesh Shirshyad

             Technical Leader, Cisco Systems Inc.

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