Source note · QoS marking and queuing for voice
RFC 7657 states that DSCP markings are not end to end in general, because each network chooses its own PHBs and DSCP mappings and may re-mark at its edge.
Checked 2026-09-24
DSCP markings are not end to end in general.
- Vendor
- IETF
- Product
- Differentiated Services
- Subsystem
- trust boundary
- Deployment
- any
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- RFC 7657: Differentiated Services (Diffserv) and Real-Time Communication — IETF / RFC Editor · tier 1 standards and regulators · Diffserv architecture discussion (section number not confirmed)
Cite this note
APA
WarmTransfer. (2026, September 24). QoS marking and queuing for voice: source note qos-marking-dscp-not-end-to-end. WarmTransfer. https://warmtransfer.net/knowledge/claims/qos-marking-dscp-not-end-to-end
BibTeX
@misc{warmtransfer-claim-qos-marking-dscp-not-end-to-end,
title = {QoS marking and queuing for voice: source note qos-marking-dscp-not-end-to-end},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/qos-marking-dscp-not-end-to-end},
note = {Source note qos-marking-dscp-not-end-to-end, checked 2026-09-24}
}