[AFMUG] EPMP 3000 AP losing firmware

[Nate Burke]

I had an EPMP3000 AP on a tower that died after a web page initiated 
reboot.  I got it swapped out and when I put it on the bench, accessing 
on 169.254.1.1 loaded a page saying to 'Load Firmware'  With a big 
disclaimer saying 'No Firmware validation done, make sure you load a 
proper image'


I loaded the 4.6.1 firmware on it, and it appears to be booting normally 
now.  I'm concerned to deploy it again, since 'something' happened, but 
why wouldn't it have loaded the backup firmware if the primary was 
corrupted?  Anyone run into this before?  The AP was acting up which is 
what prompted the initial reboot.  2 Sm's next to each other on a roof, 
one SM had 70% packet loss, the Other SM had 0% packet loss.  Only thing 
that hadn't been rebooted yet was the AP.



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Re: [AFMUG] WDM transceivers

[Chris Fabien]

It should work. If you ever anticipate needing more channels, choose
receivers with enough optical budget to allow adding the DWDM Muxes
later on.

On Wed, Dec 20, 2023 at 5:37 PM  wrote:
>
> Dumb question of the week:
>
> Could I run a pair of DWDM transceivers through a CWDM multiplexer and expect 
> it to work?  I’d only be using a small slice of the channel, but if the DWDM 
> wavelength is encompassed by the larger CWDM wavelength then that light 
> should still reach the intended destination, right?
>
>
>
>
>
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Re: [AFMUG] WDM transceivers

[Kevin W. Brown]

Pardon the weird reply formatting... I subscribe to the digest.

You can use CWDM channels 1531 and 1551 for DWDM upgrades.  Channels 
25-40 will fit into 1551, and channels 50-61 will fit into 1531.


If all you care about is a single DWDM wavelength, then you can connect 
directly to 1531 or 1551 without a DWDM mux.  I would suggest deploying 
a DWDM mux on one or both of those CWDM channels to increase the 
capacity of your network.


I have a good presentation from Commscope about overlaying DWDM onto 
CWDM that I can share with you.  We use a good bit of Commscope CWDM and 
DWDM muxes inside of splice cases in our network.  It's great for 
maximizing use of dark fiber.


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Message: 1
Date: Thu, 21 Dec 2023 10:52:10 -0500
From: 
To: "'AnimalFarm Microwave Users Group'" 
Subject: Re: [AFMUG] WDM transceivers
Message-ID: <00f301da3425$a8e33db0$faa9b910$@gmail.com>
Content-Type: text/plain; charset="utf-8"

Well if that works then a single transceiver ought to work too I should 
think.


I can just wait for the right part, so it may be a moot point when all 
is said and done, but I was curious about it.






From: AF  On Behalf Of castarritt
Sent: Thursday, December 21, 2023 10:34 AM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] WDM transceivers



I haven't heard of anyone doing it like that, but I think it should 
work.  What I have heard of is connecting a dwdm mux to one of the 
channels of a cwdm mux and running multiple channels of dwdm over a 
single cwdm channel, but I haven't tried that myself.




On Thu, Dec 21, 2023 at 9:31?AM  > wrote:


Well you?d buy them because there are up to 96 DWDM channels, and only 
up to 18 CWDM channels.  You?d still be limited to the number of ports 
on the MUX.




The situation is the CWDM MUX is already there, and our vendor 
momentarily has a shorter lead time on DWDM.  The upper CWDM channels 
happen to overlap with DWDM.  If I took a DWDM transceiver at 1570.01nm 
and plugged it into the CWDM MUX on the 1570nm port there?s no reason 
that shouldn?t work right?




-Adam







From: AF mailto:af-boun...@af.afmug.com> > On 
Behalf Of Josh Luthman

Sent: Thursday, December 21, 2023 9:27 AM
To: AnimalFarm Microwave Users Group  >

Subject: Re: [AFMUG] WDM transceivers



My guess would be no...otherwise no one would buy DWDM multiplexers...



On Wed, Dec 20, 2023 at 5:38?PM  > wrote:


Dumb question of the week:

Could I run a pair of DWDM transceivers through a CWDM multiplexer and 
expect it to work?  I?d only be using a small slice of the channel, but 
if the DWDM wavelength is encompassed by the larger CWDM wavelength then 
that light should still reach the intended destination, right?








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Re: [AFMUG] WDM transceivers

[dmmoffett]

Well if that works then a single transceiver ought to work too I should think.  

I can just wait for the right part, so it may be a moot point when all is said 
and done, but I was curious about it.

 

 

From: AF  On Behalf Of castarritt
Sent: Thursday, December 21, 2023 10:34 AM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] WDM transceivers

 

I haven't heard of anyone doing it like that, but I think it should work.  What 
I have heard of is connecting a dwdm mux to one of the channels of a cwdm mux 
and running multiple channels of dwdm over a single cwdm channel, but I haven't 
tried that myself.

 

On Thu, Dec 21, 2023 at 9:31 AM mailto:dmmoff...@gmail.com> > wrote:

Well you’d buy them because there are up to 96 DWDM channels, and only up to 18 
CWDM channels.  You’d still be limited to the number of ports on the MUX.

 

The situation is the CWDM MUX is already there, and our vendor momentarily has 
a shorter lead time on DWDM.  The upper CWDM channels happen to overlap with 
DWDM.  If I took a DWDM transceiver at 1570.01nm and plugged it into the CWDM 
MUX on the 1570nm port there’s no reason that shouldn’t work right? 

 

-Adam

 

 

 

From: AF mailto:af-boun...@af.afmug.com> > On Behalf 
Of Josh Luthman
Sent: Thursday, December 21, 2023 9:27 AM
To: AnimalFarm Microwave Users Group mailto:af@af.afmug.com> >
Subject: Re: [AFMUG] WDM transceivers

 

My guess would be no...otherwise no one would buy DWDM multiplexers...

 

On Wed, Dec 20, 2023 at 5:38 PM mailto:dmmoff...@gmail.com> > wrote:

Dumb question of the week:

Could I run a pair of DWDM transceivers through a CWDM multiplexer and expect 
it to work?  I’d only be using a small slice of the channel, but if the DWDM 
wavelength is encompassed by the larger CWDM wavelength then that light should 
still reach the intended destination, right?

 

 

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Re: [AFMUG] WDM transceivers

[castarritt]

I haven't heard of anyone doing it like that, but I think it should work.
What I have heard of is connecting a dwdm mux to one of the channels of a
cwdm mux and running multiple channels of dwdm over a single cwdm channel,
but I haven't tried that myself.

On Thu, Dec 21, 2023 at 9:31 AM  wrote:

> Well you’d buy them because there are up to 96 DWDM channels, and only up
> to 18 CWDM channels.  You’d still be limited to the number of ports on the
> MUX.
>
>
>
> The situation is the CWDM MUX is already there, and our vendor momentarily
> has a shorter lead time on DWDM.  The upper CWDM channels happen to overlap
> with DWDM.  If I took a DWDM transceiver at 1570.01nm and plugged it into
> the CWDM MUX on the 1570nm port there’s no reason that shouldn’t work
> right?
>
>
>
> -Adam
>
>
>
>
>
>
>
> *From:* AF  *On Behalf Of *Josh Luthman
> *Sent:* Thursday, December 21, 2023 9:27 AM
> *To:* AnimalFarm Microwave Users Group 
> *Subject:* Re: [AFMUG] WDM transceivers
>
>
>
> My guess would be no...otherwise no one would buy DWDM multiplexers...
>
>
>
> On Wed, Dec 20, 2023 at 5:38 PM  wrote:
>
> Dumb question of the week:
>
> Could I run a pair of DWDM transceivers through a CWDM multiplexer and
> expect it to work?  I’d only be using a small slice of the channel, but if
> the DWDM wavelength is encompassed by the larger CWDM wavelength then that
> light should still reach the intended destination, right?
>
>
>
>
>
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Re: [AFMUG] WDM transceivers

[dmmoffett]

Well you’d buy them because there are up to 96 DWDM channels, and only up to 18 
CWDM channels.  You’d still be limited to the number of ports on the MUX.

 

The situation is the CWDM MUX is already there, and our vendor momentarily has 
a shorter lead time on DWDM.  The upper CWDM channels happen to overlap with 
DWDM.  If I took a DWDM transceiver at 1570.01nm and plugged it into the CWDM 
MUX on the 1570nm port there’s no reason that shouldn’t work right? 

 

-Adam

 

 

 

From: AF  On Behalf Of Josh Luthman
Sent: Thursday, December 21, 2023 9:27 AM
To: AnimalFarm Microwave Users Group 
Subject: Re: [AFMUG] WDM transceivers

 

My guess would be no...otherwise no one would buy DWDM multiplexers...

 

On Wed, Dec 20, 2023 at 5:38 PM mailto:dmmoff...@gmail.com> > wrote:

Dumb question of the week:

Could I run a pair of DWDM transceivers through a CWDM multiplexer and expect 
it to work?  I’d only be using a small slice of the channel, but if the DWDM 
wavelength is encompassed by the larger CWDM wavelength then that light should 
still reach the intended destination, right?

 

 

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Re: [AFMUG] WDM transceivers

[Josh Luthman]

My guess would be no...otherwise no one would buy DWDM multiplexers...

On Wed, Dec 20, 2023 at 5:38 PM  wrote:

> Dumb question of the week:
>
> Could I run a pair of DWDM transceivers through a CWDM multiplexer and
> expect it to work?  I’d only be using a small slice of the channel, but if
> the DWDM wavelength is encompassed by the larger CWDM wavelength then that
> light should still reach the intended destination, right?
>
>
>
>
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> AF@af.afmug.com
> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>
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