Re: Faking carrier in switch interface ?

Another idea (and I know this is crazy, sloppy and not recommended at all
in any circumstance haha) would be to plug the switch into itself. Make it
a trunk or put the ports in the access VLAN of the SVI you want up. As
long as STP is working, one end should be the DP and the other will go
blocking to avoid a loop. Again, this is a WAY outside the box idea, and
the other solutions are much better.

- Joe

On Thu, Dec 22, 2011 at 4:37 PM, Adam Booth <adam.booth_at_gmail.com> wrote:

> Hi Carlos,
>
> I have used "state active" under the vlan definition on switches before
> which may also be a way to achieve this if you need to bring the SVI up/up
> without associated access or trunk ports operational.
>
> Cheers,
> Adam
>
> On Fri, Dec 23, 2011 at 7:08 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar
> >wrote:
>
> > Hmm, guess I found something.
> > "loopback" as a vlan interface command seems to do what I need.
> > I should have RTFM first :(
> >
> > -Carlos
> >
> > Carlos G Mendioroz @ 22/12/2011 17:43 -0300 dixit:
> >
> > Hi,
> >> you can make a router interface up/up when no cable attached, just
> >> by setting no keepalives.
> >> Any easy way to do the same on a switch ?
> >> In fact, I would need to bring a vlan interface up, but the associated
> >> ports are down/down. Any tricks ?
> >>
> >> TIA,
> >> -Carlos
> >>
> >
> > --
> > Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
> >
> >
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Regards,
Joe Astorino
CCIE #24347
Blog: http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
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