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Policy-based QoS not applying

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I have a GPO applying policy-based QoS to mark DFSR.exe (replication traffic).

The policy shows up in GPRESULT output but netmon shows the packets being marked DSCP 0 in the IP header.     The server has been rebooted.  I don't see any errors in the log.   I use the same technique to mark Lync voice traffic and it works.    

I wondered if the difference could be that DFSR.exe is a system process, not a user process.   To test, I tried marking ping.exe - no difference.  The packet scheduler is enabled in the NIC.    We have manually (not GPO-enabled) the same on our Lync VMs.

Where else should I look?

This the policy:

QoS Policies Policy Name DSCP DFS Replication (server-to-server) 10

Protocol: TCP Application: DFSR.exe Source IP: Any Destination IP: Any Source Port: Any Destination Port: Any DO-CC-QosSettings-v0.2


The Netmon trace shows this:

Ipv4: Src = xxxxx, Dest = yyyy, Next Protocol = TCP, Packet ID = 25497, Total IP Length = 176+ Versions: IPv4, Internet Protocol; Header Length = 20
  - DifferentiatedServicesField: DSCP: 0, ECN: 0
     DSCP: (000000..) Differentiated services codepoint 0
     ECT:  (......0.) ECN-Capable Transport not set
     CE:   (.......0) ECN-CE not set
    TotalLength: 176 (0xB0)
    Identification: 25497 (0x6399)+ FragmentFlags: 16384 (0x4000)
    TimeToLive: 128 (0x80)
    NextProtocol: TCP, 6(0x6)
    Checksum: 0 (0x0)
    SourceAddress: 10.240.0.184
    DestinationAddress: 10.126.11.55+ Tcp: Flags=...AP..., SrcPort=49241, DstPort=57336, PayloadLen=124, Seq=184338446 - 184338570, Ack=1214281947, Win=511



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