Source note · Voice VLAN and LLDP-MED and CDP and PoE for IP phones
The Catalyst 9300 voice VLAN guide says voice traffic carries a default Layer 3 IP precedence of 5 and voice control traffic a default of 3.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Catalyst 9300 Series Switches
- Subsystem
- voice VLAN / QoS
- Deployment
- on-premises
- Region
- not restricted
- Release range
- IOS XE 17.15.x
- Checked
- 2026-09-24
Sources
- VLAN Configuration Guide, Cisco IOS XE 17.15.x (Catalyst 9300 Switches) - Configuring Voice VLANs — Cisco Systems · tier 2 current vendor documentation · Configuring Voice VLANs > Cisco IP Phone Voice Traffic
Cite this note
APA
WarmTransfer. (2026, September 24). Voice VLAN and LLDP-MED and CDP and PoE for IP phones: source note voice-vlan-lldp-poe-c9300-vv-default-precedence. WarmTransfer. https://warmtransfer.net/knowledge/claims/voice-vlan-lldp-poe-c9300-vv-default-precedence
BibTeX
@misc{warmtransfer-claim-voice-vlan-lldp-poe-c9300-vv-default-precedence,
title = {Voice VLAN and LLDP-MED and CDP and PoE for IP phones: source note voice-vlan-lldp-poe-c9300-vv-default-precedence},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/voice-vlan-lldp-poe-c9300-vv-default-precedence},
note = {Source note voice-vlan-lldp-poe-c9300-vv-default-precedence, checked 2026-09-24}
}