Yes, VLAN 30 is a regular VLAN.  You can make it a voice vlan unless its 
already created as a regular vlan

------------------------------------------------------------------------------------

From: [email protected] [mailto:[email protected]] On Behalf Of Brian Meade
Sent: Tuesday, May 20, 2014 1:44 PM
To: Jeffrey Girard
Cc: Cisco VOIP ([email protected])
Subject: Re: [cisco-voip] Anyone using the Cisco 300 Series switches? Unable to 
get Auto Voice VLAN to work

Do you have VLAN 30 defined under VLAN Management or just under the Voice VLAN 
section?  Make sure it's added as a regular VLAN first.

On Tue, May 20, 2014 at 1:14 PM, Jeffrey Girard 
<[email protected]<mailto:[email protected]>> wrote:
Im playing with a SG300-10MP in a lab for a potential client purchase.

I am unable to get the Auto Voice VLAN function to work correctly.

I have set the “user ports” as untagged for VLAN 20 (data vlan)

Under VLAN Management -> Voice VLAN -> Properties, I have defined VLAN 30 as 
the voice vlan and enabled the auto voice vlan with activation immediate.  CDP 
and LLDP are all configured (defaults).  Smartport features are all defaults.

I have connected two IP Phones – a 7941 and and a 7940.  Both draw an IP 
address from the attached router (port 9 on the switch is configured as a trunk 
up to a router running DHCP) – but an IP address out of the data VLAN.  As they 
don’t get an Option 150 address, they don’t register.

When I look at the Smartport Interface settings for ports 7 and 8, it indicates 
Smartport Application Method is disabled as the Smartport Type is Unknown.

I also attached a regular laptop to Port 5 on the switch.  It drew a data vlan 
IP address and it too showed up as Smartport Type Unknown

So, I ran the diagnostics on the two ports to which the IP phones were 
attached.  The macro is failing at the line

“smartport switchport trunk allowed vlan add $voice-vlan”

So, this makes sense to me.  The macro is not applying the voice vlan to the 
switchport, hence the phone is not getting the correct vlan and thus not 
getting the correct dhcp scope and tftp service IP address.

So, the question is, why is the macro failing?

I go back to the Voice Vlan properties page and confirm that I have 30 set for 
the voice vlan and that I have applied the change.  The page shows that the 
operational status of the voice vlan is 30.

Anyone run into this or have any suggestions?

------------------------------------------------------------------------------------
Dr. Jeffrey T. Girard (Jeff), PhD
Colonel, United States Army (Retired)
Senior Network Engineer / VoIP Engineer - WireMeHappy.com
reply to: [email protected]<mailto:[email protected]>
(607)835-0406<tel:%28607%29835-0406> (home office)
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