From: Bob Usa (boby2kusa@hotmail.com)
Date: Wed Feb 26 2003 - 16:40:14 GMT-3
The untagged data packet is taken care by the switchport trunk native vlan
10 not by the switchport access vlan 10. With that said if you have
switchport trunk dot1q and switchport trunk native vlan 10 you really do not
need switchport access vlan 10. But if the trunking encapsulation is
removed and the port is back to being an access port. The port will belong
back to the default vlan which is vlan 1.
Having a port configured for voice vlan and access vlan without trunking
will work too. I have tried this and it definitely work. As for doing QoS
on data vlan that is not tagged - you can't. Where do you put the CoS when
there is no trunking encap? you might be able to configure the 3550 or
Cat6K to assign CoS after the packet is recieved but the packet coming in on
an untagged L2 packet does not have a CoS value, no CoS vlaue = 0.
>From: "Khalid A. Kaseb" <khalid_ameen@rayaintegration.com>
>Reply-To: "Khalid A. Kaseb" <khalid_ameen@rayaintegration.com>
>To: "'Tim Fletcher'" <tim@fletchmail.net>, "'Ong Boon Hui'"
><ongbh@cet.st.com.sg>, "'Cezar Fistik'" <cfistik@moldovacc.md>,
><ccielab@groupstudy.com>
>Subject: RE: voice vlans correct configuration
>Date: Wed, 26 Feb 2003 19:15:50 +0200
>
>This is for untagged traffic which sourced by the PC
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Tim Fletcher
>Sent: Wednesday, February 26, 2003 4:57 PM
>To: Ong Boon Hui; Cezar Fistik; ccielab@groupstudy.com
>Subject: Re: voice vlans correct configuration
>
>What's the purpose of the "switchport access vlan 10"? Since it's in
>trunk
>mode that should be irrelevant (but harmless).
>
>-Tim Fletcher
>
>At 12:02 PM 2/26/2003 +0800, Ong Boon Hui wrote:
> >Hi,
> >
> >How about the following: -
> >
> >Inferface fa 0/1
> >switchport access vlan 10
> >switchport trunk native vlan 10
> >switchport voice vlan 100
> >switchport trunk encapsulation dot1q
> >switchport mode trunk
> >
> >
> >Debarros
> >
> >
> >
> >----- Original Message -----
> >From: "Cezar Fistik" <cfistik@moldovacc.md>
> >To: <ccielab@groupstudy.com>
> >Sent: Wednesday, February 26, 2003 10:57 AM
> >Subject: voice vlans correct configuration
> >
> >
> > > Hi group,
> > >
> > > Could you please, share your ideas about the following
>configurations.
> >Just
> > > assume that an ip phone is connected to int fast 0/10 and to the
>phone is
> > > connected a pc that is supposed to be in vlan 10
> > >
> > > 1.
> > > mls qos
> > > !
> > > interface fastethernet 0/10
> > > switchport mode access
> > > switchport access vlan 10
> > > switchport voice vlan 100
> > > mls qos trust cos
> > >
> > > 2.
> > > mls qos
> > > !
> > > interface fastethernet 0/10
> > > switchport mode trunk
> > > switchport trunk encapsulation dot1q
> > > switchport voice vlan 100
> > > mls qos trust cos
> > >
> > > Which one do you think is correct? Or if they are both incorect I'll
> > > appreciate any advice.
> > >
> > > Thanks,
> > > Cezar Fistik
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