From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Thu Dec 09 2004 - 13:30:59 GMT-3
Yes, n-802.1q means that the .1q encapsulation was negotiated
via DTP. Change it to ISL on the other side and you'll see n-isl for
negotiation of ISL via DTP.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Edwards, Andrew M
> Sent: Thursday, December 09, 2004 10:25 AM
> To: Keane, James; ccielab@groupstudy.com
> Subject: RE: 3550 - Default Vlan - Native Vlan & Trunks
>
> I'm pretty sure that n-802.1q means negotiated.
>
> But then again, I feel pretty sure about a lot of things. 8)
>
> Time to break out my lab.
>
>
> -----Original Message-----
> From: Keane, James [mailto:James.Keane@agriculture.gov.ie]
> Sent: Thursday, December 09, 2004 8:12 AM
> To: ccielab@groupstudy.com
> Subject: 3550 - Default Vlan - Native Vlan & Trunks
>
>
> I was asked a fairly straightforward question yesterday
>
> quote
>
> 'let's say you are only allowed to send odd
> VLANs, 3,5,7,9,11, over a trunk, how about the default VLAN ? I think
> you cannot disallow the default VLAN 1 unless you set the native VLAN
to
>
> something else, is that right ?'
>
> unquote
>
> I responded with sure you cant disable the vlan you are trunking on ..
> but I'll just verify that in the lab...
>
>
> To my astonishment I was able to completely remove vlan 1 from the
trunk
> while keeping my native vlan as 1..
>
> now the trunk mode on one side reads 'n-802.1q' and '802.1q' on the
> other. Not quite sure what the n-802.1q is all about ??!
>
> What is going on ?
>
> One more final thing is buggin me - the default vlan is one and the
> native vlan is one - you can change the native ...
>
> ... can you change the default ???
>
>
>
> I thought I understood this topic (grrrr)
>
>
> Any light on this would be greatly appreciated
>
>
> I am going back to practical studies II to revise the basics !!!
>
>
> Regards,
>
> James Keane
>
>
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