Source note · Voice VLAN and LLDP-MED and CDP and PoE for IP phones
On Catalyst 9300 switches running IOS XE 17.15.x, voice VLAN can be configured only on access ports, not on trunk ports.
Checked 2026-09-24
Voice VLAN configuration is only supported on device access ports; voice VLAN configuration is not supported on trunk ports.
- Vendor
- Cisco
- Product
- Catalyst 9300 Series Switches
- Subsystem
- voice VLAN
- 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 > Voice VLAN Configuration Guidelines
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-access-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/voice-vlan-lldp-poe-c9300-vv-access-only
BibTeX
@misc{warmtransfer-claim-voice-vlan-lldp-poe-c9300-vv-access-only,
title = {Voice VLAN and LLDP-MED and CDP and PoE for IP phones: source note voice-vlan-lldp-poe-c9300-vv-access-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/voice-vlan-lldp-poe-c9300-vv-access-only},
note = {Source note voice-vlan-lldp-poe-c9300-vv-access-only, checked 2026-09-24}
}