Re: [Telrad] 4x4

[Terry Duchcherer]

Has anyone experienced throughput issues with 4x4TM4? We changed three sectors 
and all of them experienced slow throughputs. Have gone to 2x4 now with ports 
3&4 receive only.

Terry
NETAGO


From: telrad-boun...@wispa.org [mailto:telrad-boun...@wispa.org] On Behalf Of 
Jeremy Austin
Sent: Tuesday, July 26, 2016 12:26 PM
To: telrad@wispa.org
Subject: Re: [Telrad] 4x4


On Tue, Jul 26, 2016 at 10:18 AM, Dan Petermann 
<danpeterm...@me.com<mailto:danpeterm...@me.com>> wrote:
Any idea why I am getting the error on one sector?

What Topology do you have chosen under Deployment?

On mine, I'm using 4x4TM4.


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Re: [Telrad] 4x4

[Gabriel Pike]

That is correct. Don't forget to reboot after saving changes.


-Original Message-
From: telrad-boun...@wispa.org [mailto:telrad-boun...@wispa.org] On Behalf
Of Dan Petermann
Sent: Tuesday, July 26, 2016 1:49 PM
To: telrad@wispa.org
Subject: [Telrad] 4x4

In firmware version 0606.04013, are all 4 antenna ports able to be used?

Is the process of enabling them simply to set the drop down panels to
Operative?

The reason I ask is on one eNB I get the following error:
RH, Port3RH HW Failure   Power Detector Min
RH, Port4RH HW Failure   Power Detector Min


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Re: [Telrad] 4x4 config?

[Nathan Anderson]

That's actually a great question that I don't know the answer to, since I don't 
know enough about the hardware & was making some assumptions.  All I can go by 
is what I see in the logs.

Regardless, since the GPS piece is separate, only communicates with the host 
via low-speed serial, and is (as far as I can tell) otherwise autonomous, I 
guess it makes sense that as long as it receives sustained power it shouldn't 
need to re-initialize in theory.  But for all I know the host code wants to 
assume that the GPS is in a certain state when it is first brought on-line.  If 
that's the case, either it would force a reset so that the state of GPS was a 
known-quantity, or it wouldn't because it assumes that this code would only 
ever run at power-on time and thus would likely fail if executed outside of 
that context.  (I wonder if the host physically cuts power to the GPS during a 
system reset.)

In the end, although I can think of some real-world benefits to an "unofficial" 
quick restart solution while we wait (hopefully not in vain) for live config 
changes to be officially baked in by Telrad, everything above is all really 
just academic. :)  But I find poking about to be interesting and fun, and also 
helps me to be more informed (even if just a little bit) about the product.

-- Nathan

From: telrad-boun...@wispa.org [mailto:telrad-boun...@wispa.org] On Behalf Of 
Jeremy Austin
Sent: Tuesday, July 19, 2016 9:30 PM
To: telrad@wispa.org
Subject: Re: [Telrad] 4x4 config?


On Tue, Jul 19, 2016 at 7:57 PM, Nathan Anderson 
<nath...@fsr.com<mailto:nath...@fsr.com>> wrote:
meaning we would still have to wait for GPS PLL re-lock all over again, etc.

Sounds like you've given a great shot.

Since the GPS is a separate device, is it PLL lock that is slow, or that it 
actively resets the GPS computer, forcing it to re-acquire the birds?




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Jeremy Austin

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Re: [Telrad] 4x4 config?

[Jeremy Austin]

On Tue, Jul 19, 2016 at 7:57 PM, Nathan Anderson  wrote:

> meaning we would still have to wait for GPS PLL re-lock all over again,
> etc.


Sounds like you've given a great shot.

Since the GPS is a separate device, is it PLL lock that is slow, or that it
actively resets the GPS computer, forcing it to re-acquire the birds?




-- 
Jeremy Austin

(907) 895-2311
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Re: [Telrad] 4x4 config?

[Nathan Anderson]

In order to avoid a reboot, I have gone so far as to try killing and restarting 
various processes.  (You have to watch out for their "forker"/watchdog process, 
which will reboot the device if a process that it forked off and is monitoring 
becomes unresponsive.)  But even if I kill off everything and then restart them 
in the order that 'forker' would have, daemonizing/dispatching them into the 
background, I can't get everything working again, most likely because of all 
the crazy interdependencies and low-level hardware init that has to happen in 
just the right order and such.  I have gotten as far as getting ConfD up and 
running again, and I can interact with it, but it can't talk to the hardware 
properly after that, and then of course S1 to the EPC never comes back up.

Grr.

In fairness, even if I got it working, it probably wouldn't buy me that much 
time, since it would essentially be starting all of the important bits back up 
from scratch, meaning we would still have to wait for GPS PLL re-lock all over 
again, etc.

-- Nathan

From: telrad-boun...@wispa.org [mailto:telrad-boun...@wispa.org] On Behalf Of 
Jeremy Austin
Sent: Tuesday, July 19, 2016 8:01 PM
To: telrad@wispa.org
Subject: Re: [Telrad] 4x4 config?


On Tue, Jul 19, 2016 at 5:39 PM, Nathan Anderson 
<nath...@fsr.com<mailto:nath...@fsr.com>> wrote:
Still, 'twould be lovely if moving forward, Telrad engineering could start 
working to make settings changes take effect immediately upon config commit.

Preach it!

It's linux, so almost everything *should* be able to be reloaded except the 
kernel.


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Jeremy Austin

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Re: [Telrad] 4x4 config?

[Jeremy Austin]

On Tue, Jul 19, 2016 at 5:39 PM, Nathan Anderson  wrote:

> Still, 'twould be lovely if moving forward, Telrad engineering could start
> working to make settings changes take effect immediately upon config commit.


Preach it!

It's linux, so almost everything *should* be able to be reloaded except the
kernel.


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Re: [Telrad] 4x4 config?

[Jeremy Austin]

On Tue, Jul 19, 2016 at 4:07 PM, Nathan Anderson  wrote:

> It makes testing or tweaking settings on a Compact excruciatingly
> disruptive and time-consuming, since virtually every setting requires a
> full reboot in order to take effect.  5+ minutes per change is a long time
> to be down.
>

When I was wardriving last winter, and with 2616, I was finding that it
took almost precisely 10 minutes (from the UE's perspective, running
continuous ping) to fully re-enter the network upon ENB reboot.

I don't think it's much longer, if any, with 6.6 and the change to 4x4.

A large part of the delay is the GPS acquisition. If you log in to an ENB
as soon as it will let you (not immediately after it starts returning
pings), you can watch tlsyslog in real-time. GPS is the single biggest
delay, after which PHY and RAN come up almost immediately.

FWIW


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Re: [Telrad] 4x4 config?

[Nathan Anderson]

In my experience, it has always taken a variable number of minutes -- sometimes 
5 or more -- for the RAN to fine up after a reboot.  Even if there is a GPS 
lock, it still can take some minutes after that before I see "start RF..." 
"Send Start PHY".

It makes testing or tweaking settings on a Compact excruciatingly disruptive 
and time-consuming, since virtually every setting requires a full reboot in 
order to take effect.  5+ minutes per change is a long time to be down.

Now it takes even longer?  Oof.

-- Nathan

From: telrad-boun...@wispa.org [mailto:telrad-boun...@wispa.org] On Behalf Of 
Brian Meredith
Sent: Tuesday, July 19, 2016 12:02 PM
To: telrad@wispa.org
Subject: Re: [Telrad] 4x4 config?

It seems like it takes a few minutes now for the RAN ports to come up now, it 
didn't seem like this was the behavior on 2616.

Small price to pay for the improved signal, I guess!



On Tue, Jul 19, 2016 at 11:42 AM, Jeremy Austin 
<jhaus...@gmail.com<mailto:jhaus...@gmail.com>> wrote:

On Mon, Jul 18, 2016 at 9:54 PM, Justin Davis 
<jus...@skywerx.com<mailto:jus...@skywerx.com>> wrote:
I decided to upgrade to the newest release and turned on 4x4.

Does it take longer for ports 3 and 4 to turn on? When I use Rx only for 3&4, 
they do light up in RAN. Breezeview says we're in 4x4 mode, but I haven't seen 
3 and 4 Tx yet when in Tx mode.

I wonder if I'm just missing something obvious. No other switches to twiddle?


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(907) 895-2311<tel:%28907%29%20895-2311>
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Re: [Telrad] 4x4 config?

[Matthew Carpenter]

All 4 ports come on at the same time when in 4x4 mode.

Topo:  Single Carrier 4x4TM4
Advanced RAN: All 4 ports set to Operative

Matt Carpenter



On Tue, Jul 19, 2016 at 1:42 PM, Jeremy Austin  wrote:

>
> On Mon, Jul 18, 2016 at 9:54 PM, Justin Davis  wrote:
>
>> I decided to upgrade to the newest release and turned on 4x4.
>>
>
> Does it take longer for ports 3 and 4 to turn on? When I use Rx only for
> 3&4, they do light up in RAN. Breezeview says we're in 4x4 mode, but I
> haven't seen 3 and 4 Tx yet when in Tx mode.
>
> I wonder if I'm just missing something obvious. No other switches to
> twiddle?
>
>
> --
> Jeremy Austin
>
> (907) 895-2311
> (907) 803-5422
> jhaus...@gmail.com
>
> Heritage NetWorks
> Whitestone Power & Communications
> Vertical Broadband, LLC
>
> Schedule a meeting: http://doodle.com/jermudgeon
>
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>
>


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Re: [Telrad] 4x4 config?

[Brian Meredith]

It seems like it takes a few minutes now for the RAN ports to come up now,
it didn't seem like this was the behavior on 2616.

Small price to pay for the improved signal, I guess!



On Tue, Jul 19, 2016 at 11:42 AM, Jeremy Austin  wrote:

>
> On Mon, Jul 18, 2016 at 9:54 PM, Justin Davis  wrote:
>
>> I decided to upgrade to the newest release and turned on 4x4.
>>
>
> Does it take longer for ports 3 and 4 to turn on? When I use Rx only for
> 3&4, they do light up in RAN. Breezeview says we're in 4x4 mode, but I
> haven't seen 3 and 4 Tx yet when in Tx mode.
>
> I wonder if I'm just missing something obvious. No other switches to
> twiddle?
>
>
> --
> Jeremy Austin
>
> (907) 895-2311
> (907) 803-5422
> jhaus...@gmail.com
>
> Heritage NetWorks
> Whitestone Power & Communications
> Vertical Broadband, LLC
>
> Schedule a meeting: http://doodle.com/jermudgeon
>
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>
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Re: [Telrad] 4x4 config?

[Jeremy Austin]

On Fri, Jul 15, 2016 at 5:38 PM, Matthew Carpenter <
mcarpen...@amarillowireless.net> wrote:

>
> My issue last week, and hopefully this is fixed now, is after a eNB reboot
> the GPS will not init and therefore no S1.  However rebooting the EPC will
> bring the GPS online and S1 up. I have done this about 6 times in the last
> week and it works everytime.
>

That's very strange, Matt.

No issues here so far with GPS init after upgrading to 6.6 — in fact,
upgrading fixed a similar issue on two ENBs that were having repeated GPS
comm loss on 6.5.

Either way, something definitely changed with GPS code.


-- 
Jeremy Austin

(907) 895-2311
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Re: [Telrad] 4x4 config?

[Matthew Carpenter]

Thanks Garth. I did not see them this morning when I pulled down the files.  
My issue last week, and hopefully this is fixed now, is after a eNB reboot the 
GPS will not init and therefore no S1.  However rebooting the EPC will bring 
the GPS online and S1 up. I have done this about 6 times in the last week and 
it works everytime. 


Matthew Carpenter
Amarillo Wireless
806-316-5071




On Fri, Jul 15, 2016 at 8:16 PM -0500, "G. Nicholas" <gnicho...@nwnc.net> wrote:










Matt,

Nick posted updated v6.6 manuals for the EPC and Compact on the Zendesk support 
site this week.

Garth

- Original Message -
From: Matthew Carpenter
Sent: 7/15/2016 7:33:02 PM
To: telrad@wispa.org;telrad@wispa.org
Subject: Re: [Telrad] 4x4 config?

> Hey. We have been running 6.6 for about 1 month now.  
> 4x4 mode works and you can select it in breezeview.   Saw a 5 dbi increase 
> with UEs. 
> No idea in the weak level 1 or 2.  I left it on default and have not gotten 
> any manuel for 6.6 as of yet. 
> 
> 
> Matthew Carpenter
> Amarillo Wireless
> 806-316-5071
> 
>   _
> From: Jeremy Austin 
> Sent: Friday, July 15, 2016 6:25 PM
> Subject: [Telrad] 4x4 config?
> To:  
> 
> 
> Folks,
> Is there any special config for 4x4 in the new release 6.6?
> I have ports 3 and 4 set to Rx only in RAN, and they're green. Will they work 
> as Tx though if I just switch them?
> I'm running 20 mhz channels.
> I also am curious about Level 1 vs Level 2 weak UE protection; what's the 
> difference?
> So far so good on 6.6 — it's working better than 6.5 for us. 
> 
> -- 
> Jeremy Austin
> (907) 895-2311(907) 803-5422jhaus...@gmail.com
> Heritage NetWorksWhitestone Power & CommunicationsVertical Broadband, LLC
> Schedule a meeting: http://doodle.com/jermudgeon
> 
> 
>   






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