Source note · QoS marking and queuing for voice
Cisco warns that port-based classification of client media is not a fully secure method, because other applications can use the same ports and gain unintended priority.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Collaboration 14 on-premises
- Subsystem
- trust boundary
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Collaboration 14 PA
- Checked
- 2026-09-24
Sources
- Preferred Architecture for Cisco Collaboration 14 Enterprise On-Premises Deployments, CVD - Bandwidth Management — Cisco · tier 2 current vendor documentation · Bandwidth Management chapter, Jabber classification caveat
Cite this note
APA
WarmTransfer. (2026, September 24). QoS marking and queuing for voice: source note qos-marking-cisco-pa-port-spoofing. WarmTransfer. https://warmtransfer.net/knowledge/claims/qos-marking-cisco-pa-port-spoofing
BibTeX
@misc{warmtransfer-claim-qos-marking-cisco-pa-port-spoofing,
title = {QoS marking and queuing for voice: source note qos-marking-cisco-pa-port-spoofing},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/qos-marking-cisco-pa-port-spoofing},
note = {Source note qos-marking-cisco-pa-port-spoofing, checked 2026-09-24}
}