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Cisco Bug: CSCus18374 - Fabric-QoS is unexpected for EXP, Configuring EXP and TOS in one C-map

Last Modified

Jul 20, 2018

Products (1)

  • Cisco Network Convergence System 6000 Series Routers

Known Affected Releases


Description (partial)

MPLS packets are enqueued to the unexpected CoS in Fabric-QoS.

Configuring EXP and IPTOS in the same class-map as follows.
class-map match-any XXX
 match precedence 2 3 4 5 6 7
 match mpls experimental topmost 2 3 4 5 6 7
In this case, mpls packets with EXP0 are enqueued to the unexpected CoS is CoS3 in Fabric-QoS.
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