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Webcast-Catalyst9k
New Member

voice vlan on 3550

Hi,

Does anyone know the correct way to configure a voice port on Cisco 3550? Cisco seem to use different config on every switch family.. it is a bit confusing..

eg: Voice vlan:100 with 802.1Q Frames, data vlan: 50.

it this the correct config??

!

interface FastEthernet0/10

switchport access vlan 50

switchport mode access

switchport voice vlan 100

spanning-tree portfast

!

also, how to config the switch if voice vlan use 802.1p Priority-Tagged Frames?

thanks

regards,

sean

4 REPLIES
Silver

Re: voice vlan on 3550

I can go through the steps individually but I think it is more appropriate if you read it in detail from the relevant portion of the configuration guide:

http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_guide_chapter09186a00801cdf35.html

If you still have specific questions we are here to help out.

New Member

Re: voice vlan on 3550

Thanks. i have read the doco before.

my question is:

do i need to manually set the port to "access"? if yes, how does IP hone set the COS?

Re: voice vlan on 3550

Hi

The switch is going to detect it through CDP and set the COS values.make sure u have enabled CDP on the ports.

Thanks

Mahmood

New Member

Re: voice vlan on 3550

does it mean i only can use this config on Cisco ip phone?

could someone show me the 802.1p with data vlan switch configuration example. thanks.

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