[cisco-voip] Anyone using the Cisco 300 Series switches? Unable to get Auto Voice VLAN to work

[Brian Meade]

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 <
jeffrey.girard at girardinc.com> 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: jeffrey.girard at wiremehappy.com
>
> (607)835-0406 (home office)
>
> (845)764-1661 (mobile)
>
> (607)835-0458 (fax)
>
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