Comments on: Voice VLAN – Auxiliary VLAN

By: Jacob

Jacob — Tue, 23 Dec 2025 20:32:32 +0000

Excellent

By: Arun Sundar

Arun Sundar — Mon, 15 Apr 2024 12:02:50 +0000

Great article. Thank you for sharing this. God bless

By: Ashish

Ashish — Fri, 24 Feb 2023 12:02:22 +0000

great clarification

By: Mateus Anastácio

Mateus Anastácio — Fri, 25 Nov 2022 13:04:02 +0000

Nice job!

By: Ed Harmoush

Ed Harmoush — Fri, 14 Oct 2022 23:58:17 +0000

In reply to Shaheer Khan. Glad you enjoyed it, Shaheer =). You're welcome.

By: Shaheer Khan

Shaheer Khan — Mon, 25 Jul 2022 11:22:21 +0000

Have been struggling with this especially with the question: Why a single port is used and how a single port can handle traffic for two different VLANs? Your article really cleared that for me and also the background knowledge really helped clear some confusions.
Great article, Thanks 🙂

By: Jonathan Helms

Jonathan Helms — Fri, 03 Sep 2021 18:26:03 +0000

In reply to Ganesh Devarshetty. For the phone to use 802.1p you will need to specify that on the access port voice vlan (switchport voice vlan dot1p). Otherwise all vlan 0 traffic sent to the phone is dropped by default. When using Cisco VoIP phone with a device attached, CDP is used to communicate the voice vlan to the phone and subsequently tag VoIP traffic leaving the phone with that vlan. On the access port if you do not specify a voice vlan and only specify an access vlan, then the phone and the device must be in the same vlan, subnet, and use the same frame type. This really isn't recommended for a number of reasons.

By: Ed Harmoush

Ed Harmoush — Sat, 24 Jul 2021 04:46:29 +0000

In reply to Bhanu. Thank you, Bhanu. Will do =)

By: Bhanu

Bhanu — Tue, 20 Jul 2021 17:05:22 +0000

Practical Networking – every topic explained was flawless.. Keep coming more.

By: Ed Harmoush

Ed Harmoush — Sat, 13 Mar 2021 21:29:36 +0000

In reply to George. Thank you, George. Glad you enjoyed the article =)