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Cisco Bug: CSCvt69314 - EXP copied into IP DSCP on PHP on NCS5500

Last Modified

May 29, 2020

Products (1)

  • Cisco Network Convergence System 5500 Series

Known Affected Releases

6.3.3.CE

Description (partial)

Symptom:
MPLS EXP copied into IP DSCP on PHP on NCS5500 platform. This behavior is quite different with ASR9K platform.Although NCS5500 QoS document has explain it, but the workaround "mpls ip-ttl-propagate disable" also has side effect on traceroute result.

Conditions:
plain MPLS network with only one layer label
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