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New Member

CUPC 7.0.1 not marking packet as EF


I have done some packet capture and found that the CUPC is not marking the RTP/UDP packet.

Is anything we need to do so that CUPC mark the packet as DSCP EF (UDP/RTP).

Plz find the screenshot for the wireshark.

It say that the frame is not marked.

I need to do Qos so based on what i can dpo QOS for the CUPC 7.0.1.

ANy help is appreciated.


VIP Super Bronze

Re: CUPC 7.0.1 not marking packet as EF

Well there was a bug surrounding DSCP markings that was fixed in 7.0(5) so you may want to try a newer version.

Beyond that, there are other things that can impact this:

  • Windows may be stripping QoS markings based on a Group Policy. You can also use this toward your advantage to ensure the packets are marked if the policy is properly configured.
  • Was this packet capture performed from the same computer running CIPC?
    If not, the switch port needs to trust packets from the data VLAN.
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New Member

Re: CUPC 7.0.1 not marking packet as EF


Thanks for your immediate response.

Just want to know can i create QoS on access port of c

Cisco L2 switch based on DSCP marking  as i have cofigured the same but seems it is not  working.

Both the side we are using CUPC 7.0.1 and we have onlyu one vlan in the access port.