RFC 7657 warns that giving packets in one 5-tuple different DSCPs makes reordering very likely, and advises limiting a single RTP stream to DSCPs within one AF class.

Checked 2026-09-24

Vendor
IETF
Product
Differentiated Services
Subsystem
multiplexing
Deployment
any
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). QoS marking and queuing for voice: source note qos-marking-mixed-dscp-reordering. WarmTransfer. https://warmtransfer.net/knowledge/claims/qos-marking-mixed-dscp-reordering

BibTeX

@misc{warmtransfer-claim-qos-marking-mixed-dscp-reordering,
  title  = {QoS marking and queuing for voice: source note qos-marking-mixed-dscp-reordering},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/qos-marking-mixed-dscp-reordering},
  note   = {Source note qos-marking-mixed-dscp-reordering, checked 2026-09-24}
}

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