Source note · SD-WAN considerations for voice
SD-WAN packet duplication sends copies of selected traffic over alternate tunnels to mitigate loss. The receiving device forwards one copy and discards the duplicates.
Checked 2026-09-24
Receiving Cisco IOS XE Catalyst SD-WAN devices forward one packet to the server and discard the duplicate packets.
- Vendor
- Cisco
- Product
- Cisco Catalyst SD-WAN
- Subsystem
- loss correction
- Deployment
- sd-wan-controller-mode
- Region
- not restricted
- Release range
- 16.12.1b and later
- Checked
- 2026-09-24
Sources
- Cisco Catalyst SD-WAN Policies Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x - Packet Duplication — Cisco Systems · tier 2 current vendor documentation · Information about packet duplication
Cite this note
APA
WarmTransfer. (2026, September 24). SD-WAN considerations for voice: source note sdwan-voice-packet-dup-behaviour. WarmTransfer. https://warmtransfer.net/knowledge/claims/sdwan-voice-packet-dup-behaviour
BibTeX
@misc{warmtransfer-claim-sdwan-voice-packet-dup-behaviour,
title = {SD-WAN considerations for voice: source note sdwan-voice-packet-dup-behaviour},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sdwan-voice-packet-dup-behaviour},
note = {Source note sdwan-voice-packet-dup-behaviour, checked 2026-09-24}
}