Correct Answer
royalblues Thu, 12/13/2007 - 00:46
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You can have only a voice vlan and a data vlan associated with a Cisco switch port.


HTH

Narayan


majdalani Thu, 12/13/2007 - 01:38
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Hi,


So there is no way to have 2 data vlans on 1 port !!


Thanks

royalblues Thu, 12/13/2007 - 02:01
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Yes


An access port can be part of only one vlan


Narayan

Edison Ortiz Thu, 12/13/2007 - 07:03
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You can trunk the switchport and purchase a NIC that is 802.1q aware.


If this switchport connects to another switch, then just configure both switchports as trunk.


A trunk allows you to carry multiple Vlans.

ashirel Thu, 12/13/2007 - 08:01
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what is it that you wish to do?

a trunk port w/ multiple vlans may help.

older ios versions allowed multi-vlan ports.

this was phased out as the trunking standard

solidified.

-ams

(arthur sherman AKA avraham shir-el)

majdalani Fri, 12/14/2007 - 02:56
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Hi,


what i wish to do is having one machine to be able to work on 2 vlans using the same port without the need to change the access list on the main switch 4506.


This computer is connected to a 3750 switch on a port that is configure to vlax, now i want this port to be configured for vlanx AND vlany.

shiva_ial Fri, 12/14/2007 - 03:07
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hi Tarek ,

you can have only one pc attached to one vlan (means a single port can be member of single vlan alone). my undertsanding is you want same pc connecting in single port to

participate in 2 vlans at same time (not possible i guess)



Edison Ortiz Fri, 12/14/2007 - 07:30
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Definitely doable.


1) Purchase a NIC with 802.1q support

2) Configure the switchport as trunk


This procedure is done before on server farm environments where you have a VMWare machine hosting several VMWare hosts running on different subnet. The NIC allows you to allocate the host on the specified subnet.



majdalani Fri, 12/14/2007 - 09:23
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Hi Edison,


Say that i have purchased a NIC with 802.1q support. what is next ?


what configuration should be done on this NIC ?

Edison Ortiz Fri, 12/14/2007 - 09:59
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The NIC driver should allow you to configure dot1q trunking. The steps are different depending on the NIC driver, read its docs.


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