[c-nsp] Data VLAN/Voice VLAN

[Andrew Gallo]

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Would you mind sharing your IOS config, DHCP options, phone version &
settings file?

I've had varying success with Avaya and Cisco LLDP.

Then again, I'm using SIP loads on the phones.

Thanks.



Geoffrey Pendery wrote:
> "A compatible device (i.e. one the presents itself as a phone via CDP)
> would activate the voice VLAN and thus allow tagged incoming traffic
> on VLAN 66. This requires the switch (and port) to have CDP enabled by
> the way."
> 
> 
> Can also be done with LLDP, should you have non-Cisco IP phones.  I
> can vouch for 4500's and Avaya IP phones speaking LLDP to each other.
> 
> 
> -Geoff
> 
> 
> On Fri, Aug 28, 2009 at 5:43 PM, Peter Rathlev<peter at rathlev.dk> wrote:
>> On Fri, 2009-08-28 at 15:20 -0700, Yuri Bank wrote:
>>> interface FastEthernet0/4
>>>  description phone
>>>  switchport access vlan 77
>>>  switchport trunk native vlan 55
>>>  switchport mode access
>>>  switchport voice vlan 66
>>>
>>> In this configuration, data is placed on vlan 55? From what I've read
>>> on other forums and such is that the data would be on the configured
>>> access vlan ( 77 ). Unfortunately I do not have an iphone to test
>>> this. Could anyone give me some clarity?
>> Untagged traffic on the port would be VLAN 77, since this is what you
>> configured at access VLAN and since the port is in forced access mode.
>>
>> A compatible device (i.e. one the presents itself as a phone via CDP)
>> would activate the voice VLAN and thus allow tagged incoming traffic on
>> VLAN 66. This requires the switch (and port) to have CDP enabled by the
>> way.
>>
>> The trunk configuration is ignored when you issue "switchport mode
>> access".
>>
>> If you only need a stand-alone phone you can just use a simple access
>> port in the voice VLAN.
>>
>> Regards,
>> Peter
>>
>>
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