Re: Interface vlan x and manually create vlan x

As others have said, you would definitely want to add the L2 VLAN or your
SVI won't come up. You also need to make sure you assign the VLAN to a port
or allow it on a trunk. As far as VTP I wouldn't mix and match unless asked
to, and then I would be very careful. In that case, you need to be very
sure you actually have end to end L2 connectivity. For instance, if you
have Server---Trans---Client make sure you have actually defined the VLAN on
the transparent switch, and that it is allowed on the trunk to the client.
Otherwise you could end up in a situation where the client actually has the
VLAN in it's database (learned from the server) but you won't be able to
ping end to end : )

On Sun, Sep 13, 2009 at 11:31 AM, Nadeem Rafi <nrafia_at_gmail.com> wrote:

> i think in that case we should have to remove those vlans from prunning
> eligible list, otherwise they will be issues with Transparent switch.
> other than prunning eligible list, if we create vlans in transparent switch
> will it help? please let me know as i am not clear at this spot.
>
> Best Regards,
>
> On Sun, Sep 13, 2009 at 6:15 PM, Darby Weaver <darby.weaver_at_gmail.com
> >wrote:
>
> > And then you turned on vtp pruning...
> >
> > Now what happens?
> >
> > On Sun, Sep 13, 2009 at 8:03 AM, Nadeem Rafi <nrafia_at_gmail.com> wrote:
> >
> >> i never went to lab so cannot tell whats proper way of action. But if
> you
> >> set one switch as Server, then all the clients who has same domain name
> /
> >> hash will get updates from server and all vlans will be synchronized,
> >> which
> >> means all server and clients will be having same vlan information.
> >> Regarding Transparent mode
> >> if domain name same then switch will be passing the VTP information to
> >> other
> >> switches, but will not have any effect on its own vlan information. In
> >> case
> >> Transparent switch domain name is different than other switches then you
> >> need to run vtp version 2.
> >>
> >> HTH
> >>
> >> On Sun, Sep 13, 2009 at 2:52 PM, ospfv2 <ospfv2_at_gmail.com> wrote:
> >>
> >> > many thanks Rafi
> >> >
> >> > one more question, if the lab only give you transparent vtp or client
> >> vtp
> >> > mode
> >> >
> >> > and i set one of the switches as server to propagate the vlan, so all
> >> > the switches now have the same vlans, is there any danger of doing
> >> > this ?
> >> >
> >> > TIA
> >> >
> >> >
> >> >
> >> > On 9/13/09, Nadeem Rafi <nrafia_at_gmail.com> wrote:
> >> > > if you just create interface vlan x and no vlan x is being created,
> >> then
> >> > > interface vlan x status will be down down. For interface vlan x, an
> >> > > associated vlan should exist.
> >> > > HTH
> >> > >
> >> > > On Sun, Sep 13, 2009 at 1:52 PM, ospfv2 <ospfv2_at_gmail.com> wrote:
> >> > >
> >> > >> Hi Expert
> >> > >>
> >> > >> another quick-dumb question :)
> >> > >>
> >> > >> when the lab ask to create interface vlan x,
> >> > >> should we create the vlan x manually as well ?
> >> > >> i mean will that cause me loosing point ?
> >> > >>
> >> > >> thanks
> >> > >>
> >> > >>
> >> > >> Blogs and organic groups at http://www.ccie.net
> >> > >>
> >> > >>
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> >
> >
> > --
> > Darby Weaver
> > Network Engineer
> >
> > 407-802-7394
> > darbyweaver_at_yahoo.com
>
>
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-- 
Regards,
Joe Astorino - CCIE #24347 R&S
Technical Instructor - IPexpert, Inc.
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