Source note · SD-WAN considerations for voice
SD-WAN FEC sends one parity packet for every group of four data packets and can recover at most one lost packet in a group.
Checked 2026-09-24
a mechanism to recover lost packets on a link by sending extra 'parity' packets for every group of 4 packets
- Vendor
- Cisco
- Product
- Cisco Catalyst SD-WAN
- Subsystem
- loss correction
- Deployment
- sd-wan-controller-mode
- Region
- not restricted
- Release range
- 16.11 and later
- Checked
- 2026-09-24
Sources
- Cisco Catalyst SD-WAN Policies Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x - Forward Error Correction — Cisco Systems · tier 2 current vendor documentation · Information about forward error correction
Cite this note
APA
WarmTransfer. (2026, September 24). SD-WAN considerations for voice: source note sdwan-voice-fec-parity. WarmTransfer. https://warmtransfer.net/knowledge/claims/sdwan-voice-fec-parity
BibTeX
@misc{warmtransfer-claim-sdwan-voice-fec-parity,
title = {SD-WAN considerations for voice: source note sdwan-voice-fec-parity},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sdwan-voice-fec-parity},
note = {Source note sdwan-voice-fec-parity, checked 2026-09-24}
}