[TriLUG] anyone need and Edgerouter 12P?

[Greg Brown via TriLUG]

>Maybe
there is some way that intentionally creating loops at the front panel
will trigger STP to reconfigure the ports, with side-effects that
reset the PoE status.

That's what I'm hoping will happen.  Ubiquiti shows some occasional
weird behavior when dealing with STP BPDUs in that the device should
not turn PoE off to a port with a detected loop but should instead set
the port to blocking from forwarding but for whatever reason PoE seems
to be reset as well for reasons I can't fathom.

I wonder if anything has worked yet.. There's a way to reset the
ports.  There has to be.

Greg

On Tue, Jul 19, 2022 at 8:55 AM Robert Wagoner <rawagoner at gmail.com> wrote:
>
> Got it - didn't know the context that someone had shipped a
> malfunctioning system to you.  I guess you've tried the power-on
> factory reset procedure but that didn't resolve the issue.  Maybe
> there is some way that intentionally creating loops at the front panel
> will trigger STP to reconfigure the ports, with side-effects that
> reset the PoE status.  That would be a little strange, but one man's
> bug is another one's feature.  Good luck.
> --
> Robert
>
> On Tue, Jul 19, 2022 at 12:17 AM Wes Garrison <wes at xitechusa.com> wrote:
> >
> >
> > Thanks Robert, it certainly wasn't any of my cables; the router had all PoE lights on when I unboxed and plugged it in.   (this is from eBay, not new).
> >
> > I think what Greg was suggesting using crossover cables for is a very specific and strange reset procedure called a "spanning tree reset" that would cause the switch/router to reset itself when you create loops between the switch controller sections with a crossover cable.
> >
> > -Wes
> >
> >
> > On Tue, Jul 19, 2022 at 12:05 AM Robert Wagoner <rawagoner at gmail.com> wrote:
> >>
> >> Wes, you shouldn't need to make crossover cables for this, and you
> >> might want to avoid doing that.  !000BASE-T uses bidirectional
> >> signaling across all 4 pairs, so a straight patch cable is the right
> >> thing to use.  Even for lower 10BASE-T or 100BASE-TX which have a
> >> designated transmit pair and receive pair, nearly all contemporary
> >> hardware will automatically handle the MDI/MDI-X crossover, so you can
> >> use straight cables consistently and avoid a lot of potential
> >> misconfiguration problems.  It's possible that a handmade cable might
> >> have been the culprit which caused the PoE to get stuck in the first
> >> place.  (Not judging)
> >> --
> >> Robert
> >>
> >> On Mon, Jul 18, 2022 at 10:35 PM Wes Garrison via TriLUG
> >> <trilug at trilug.org> wrote:
> >> >
> >> > Hey Greg,
> >> >
> >> > Thanks so much for the info.  Could you elaborate more on the "undocumented
> >> > resets" and CLI tricks?
> >> >
> >> > I haven't heard of any of these things.  I'll Google the spanning tree
> >> > reset and give that a go, though.  I'm good at making crossover cables.
> >> >
> >> > Power on these are on pins 4-5 and 7-8, so nothing should start smoking
> >> > with a cable that crosses 1-2 and 3-6.
> >> >
> >> > -Wes
> >> >
> >> >
> >> > On Mon, Jul 18, 2022 at 6:29 PM Greg Brown <gwbrown1 at gmail.com> wrote:
> >> >
> >> > > Hum.... I imagine you have done all the CLI tricks including the
> >> > > undocumented resets and all that?  The PoE ports used to be controlled
> >> > > four to a single controller chip but I"m not sure if this is still the
> >> > > case or not.  Since the device is likely to be heading back and is
> >> > > kind of, sort-of dead in a way you might want to try the "spanning
> >> > > tree" reset where you take a couple of crossover Ethernet cables and
> >> > > after the device boots plug, say, port 1 into port 5 and port 8 into
> >> > > port 10 and so on.. just make sure that the loops you form go from
> >> > > chip-to-chip (and hence across the backplane).  If that doesn't work
> >> > > leave everything plugged up just the way it is and pull power from the
> >> > > back and then power it back up with the cables in place.
> >> > >
> >> > > That's a long shot but I've seen something similar work in the past.
> >> > > That or you're going to watch it give up the smoky ghost.
> >> > >
> >> > > If you try it please let me know if it works. I am curious.
> >> > >
> >> > > Greg
> >> > >
> >> > > On Mon, Jul 18, 2022 at 6:21 PM Wes Garrison via TriLUG
> >> > > <trilug at trilug.org> wrote:
> >> > > >
> >> > > > I have a Ubiquiti EdgeRouter 12P that I can't use.
> >> > > >
> >> > > > The ER-12P has 2 1Gbps SFP ports and 10 1Gbps RJ-45 ports, 8 of which can
> >> > > > be made part of a switch via a hardware switch chip.
> >> > > >
> >> > > > It can also send Ubiquiti's proprietary 24V PoE on all 10 ports.
> >> > > >
> >> > > > It's a great router:
> >> > > >
> >> > > https://store.ui.com/collections/operator-edgemax-routers/products/edgerouter-12p
> >> > > >
> >> > > > ...but there's a catch.
> >> > > >
> >> > > > The PoE on all 10 ports is stuck ON.  The router is working great, but I
> >> > > > can't get the power to turn off.
> >> > > >
> >> > > > If this is useful to one of you, please let me know, otherwise I'm going
> >> > > to
> >> > > > send it back.
> >> > > >
> >> > > > Thanks,
> >> > > >
> >> > > > -Wes
> >> > > > --
> >> > > > This message was sent to: Greg Brown <gwbrown1 at gmail.com>
> >> > > > To unsubscribe, send a blank message to trilug-leave at trilug.org from
> >> > > that address.
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> >> > >
> >> > --
> >> > This message was sent to: Robert Wagoner <rawagoner at gmail.com>
> >> > To unsubscribe, send a blank message to trilug-leave at trilug.org from that address.
> >> > TriLUG mailing list : https://www.trilug.org/mailman/listinfo/trilug
> >> > Unsubscribe or edit options on the web  : https://www.trilug.org/mailman/options/trilug/rawagoner%40gmail.com
> >> > Welcome to TriLUG: https://trilug.org/welcome