Re: Switchport trunk allow ?

I may be wrong but I thought you could not prevent Vlan 1. It has been a
long time since I messed with the switches though.

Paul

-- 
Paul Negron
CCIE# 14856 CCSI# 22752
Senior Technical Instructor
www.micronicstraining.com
> From: Dale Shaw <dale.shaw_at_gmail.com>
> Reply-To: Dale Shaw <dale.shaw_at_gmail.com>
> Date: Sun, 24 Oct 2010 14:05:46 +1100
> To: Vincent Tay <vtay.75_at_gmail.com>
> Cc: "Ccielab_at_groupstudy.com" <ccielab_at_groupstudy.com>
> Subject: Re: Switchport trunk allow ?
> 
> Hi Vincent,
> 
> On Sun, Oct 24, 2010 at 1:55 PM, Vincent Tay <vtay.75_at_gmail.com> wrote:
>> 
>> If i use the command switchport trunk allow, do i have to include the native
>> vlan "switchport trunk allow vlan1,.... if vlan 1 is a native vlan in order
>> to bring the trunk up?
> 
> Not in my experience, no -- the native VLAN does not need to be
> explicitly included in the list of VLAN IDs specified with "switchport
> trunk allowed vlan" command.
> 
> From the command reference:
> 
> "allowed vlan *vlan-list* // Set the list of allowed VLANs that can
> receive and send traffic on this interface in tagged format when in
> trunking mode"
> 
> The keyword there being *tagged*.
> 
> VLAN 1 is a special case but I'll leave it up to you to figure that one out
> :-)
> 
> cheers,
> Dale
> 
> 
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