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Cisco Bug: CSCuo18931 - CUBE marking all media packets to AF11

Last Modified

Apr 25, 2020

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

DSCP values are set for the VoIP signalling and media packets using the
"ip qos dscp" command under the dial-peer. The default value, in the absence of
explicit configuration, should be "af31" for signalling and "ef" for media.

When setting dscp values for signaling/audio/video under the dial-peer the media packets are marked with AF11 instead of AF33 with the following configuration

 ip qos dscp af11 media
 ip qos dscp af21 signaling
 ip qos dscp af33 video rsvp-none

This occurs when configuration is applied on dial-peer with the following call flow and IOS

CTS endpoint - SIP - CUCM -SIP -  CUBE -SIP- SME -SIP- ISDN Video Gateway

CUBE Platform/IOS 
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  • Status
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