voice vlan on cisco 3548 switch

Answered Question
Oct 19th, 2009
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Hi,

I have a cisco 3548 switch.is it mandatory to configure the port as trunk in order to connect an IP phone?wht if i configure the command switch port voice vlan 2?

Correct Answer by Giuseppe Larosa about 7 years 6 months ago

Hello Azharuddin,


the switchport mode trunk is needed in this type of IOS/platform.


it is a question of IOS implementation you can see this command as a workaround.


newer IOS versions don't need it.


Hope to help

Giuseppe


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Giuseppe Larosa Mon, 10/19/2009 - 01:43
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Hello Azharuddin,


if you have a C3548 XL device you will need both commands


actually when we use switchport voice vlan that is an implicit trunk or mini trunk of two vlans


Hope to help

Giuseppe


azharuddininamdar Mon, 10/19/2009 - 01:55
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thanks for reply Giuseppe,

since the port carries both data and voice traffic,so it is called as implicit trunk?and will my ip phone works fine if i do not configur the port as trunk?

Correct Answer
Giuseppe Larosa Mon, 10/19/2009 - 02:01
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  • Super Silver, 17500 points or more
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Hello Azharuddin,


the switchport mode trunk is needed in this type of IOS/platform.


it is a question of IOS implementation you can see this command as a workaround.


newer IOS versions don't need it.


Hope to help

Giuseppe


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