Nathan,
We happen to have a few 1100AHx2. Which ports did you have to avoid to
resolve the performance issue? The last two?
Thanks,
Adam
------ Original Message ------
From: "Nathan Anderson" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 11/18/2016 2:00:18 PM
Subject: Re: [Telrad] Issues
When we had problems with S1 trunking, the primary symptom was as it
sounds like you are describing: TCP performance to LTE UEs got worse
the more hops out on the network you got. Of course, overall total
capacity to a particular UE could be achieved by opening a bajillion
parallel TCP sockets, thus demonstrating at a radio link level that
things were okay, but that didn't mean that there wasn't a problem.
If, as a test, we threw an EPC out at a site where we were seeing the
TCP performance issues, those issues vanished completely.
In our case, our problem turned out to be blamable on a particular
architectural quirk of certain MikroTik router models that happen to
incorporate switch chips (our PDN gateway is an 1100AHx2): by being
strategic about what specific ethernet ports we used, the problem could
be avoided.
We never even really managed to get to the point where we were able to
completely understand what was happening at a lower level to cause the
performance degradation. If we ran unidirectional UDP tests, there was
no measureable difference in packet loss before we worked around the
issue vs. after. But TCP performance difference was night and day.
In one-off cases where we have had a relatively small amount of
measureable packet loss on a backhaul that services a Compact, we have
seen similar TCP performance issues. The path from the UE all the way
to your internet gateway needs to be pristine.
-- Nathan
From:[email protected] [mailto:[email protected]] On
Behalf Of Justin Davis
Sent: Wednesday, November 16, 2016 8:35 PM
To:[email protected]
Subject: Re: [Telrad] Issues
Correct. Iperf tests show good results and so does dslreports
speedtest with a bunch of streams open it yields great results. Like I
said it does not cause actual performance issues just lack of
performance on sites like speedtest.net. Trying to explain that to
customers who don't understand and do not have service issues just that
their speedtest results are not showing what they are paying for. Even
though they can stream 3 movies at one time. We have close to 600 UE's
online now and very rarely get calls from our LTE customers. I was
just curious if anybody else had experienced or had a solution for the
difference in site vs remote eNB's.
On Wed, Nov 16, 2016 at 9:25 PM, Matthew Carpenter
<[email protected]> wrote:
Are two EPC are located at the Datacenter.
None of our eNB are located in the same location as the Datacenter.
I mostly use iperf from the UE back to the Datacenter for a good
speedtest. I know customers use speedtest.net (we have a speedtest.net
service in our Datacenter also).
Results between iperf and speedtest.net are very close to the same.
I have neve taken a EPC out to the tower where a eNB is located.
Packages we sell on LTE are 5,10,15,20. Most are on the 10 or 15 Mbit
plan.
Upload is 1 or 2 mbit and most are on the 1 Mbit.
So you are saying that the S1 tunnel between the EPC and eNB could be
causing an issue? I have not really seen any speed problems until we
got to around 25-30UE’s on a eNB, at that point I have been unable to
get the upload speeds.
You would think on a 80x10 plan (for us only to test with), and the eNB
only moving small amount of data I should be able to 60x7, but I only
see around 14Mbit x 600K.
Matt Carpenter
On Nov 16, 2016, at 10:13 PM, Skywerx Support
<[email protected]> wrote:
What about on say for example speedtest.net with a UE connected to and
eNB where the EPC is located vs a UE connected to an eNB that is not.
We are putting 80 UE's on our eNB's with no problem. Performance is
always there but we do see a difference with web based speedtests when
the eNB's are not at the EPC site.
--
Justin Davis
COO
SkyWerx Industries, LLC
On Nov 16, 2016, at 9:06 PM, Matthew Carpenter
<[email protected]> wrote:
We have a new eNB with only 3 UE’s on it, speed tests (iperf) this
evening are 63x7.5 4x4TM4 Mode and 2/0 frame config.
If I run a iperf on a UE connected to a eNB with 40+ UE’s then I find
the download is in the 14-18Mbit range, but the upload is 300-600K.
Checking the eNB in Breezeview it shows very little usage at the time
I tested.
I need to check all eNB if see if they exhibit this same upload speed
issues. From little rumblings in the Service Dept I think I will
find they all do this.
Nick is working on this and I am sure he will come up with a solution
soon.
Matt Carpenter
On Nov 16, 2016, at 8:58 PM, Skywerx Support
<[email protected]> wrote:
We have two 2020 centralized also with 8 eNB talking to one and 7
eNB to the other. Are you seeing similar throughout on all eNB's
that are not located where the EPC's are?
--
Justin Davis
COO
SkyWerx Industries, LLC
On Nov 16, 2016, at 7:28 PM, Matthew Carpenter
<[email protected]> wrote:
Two Centralized EPCs.
Right now they are 1010RPL (2020L), but we are software upgrading
them to the 2020CS this week.
Matt Carpenter
On Wed, Nov 16, 2016 at 8:07 PM, Skywerx Support
<[email protected]> wrote:
Matt,
Are you using site based or centralized EPC?
Thanks
--
Justin Davis
COO
SkyWerx Industries, LLC
On Nov 16, 2016, at 4:43 PM, Matthew Carpenter
<[email protected]> wrote:
From what I have seen running 4573:
1. 4x4TM4 is working good. I have 2 eNB’s using it with good
speeds through trees. In one location I saw 63Mbit x 7.3Mbit and a
CINR of 27. UBNT 5ghz at this same location was around 79db and
we would not install.
2. Better performance. Jury is still out on this one. Like a few
of you have stated the Upload speeds are not where they should be
2/0 config and only 1mbit of upload and I only see 700-800K on
iperf test.
3. There are some timer changes that extend the amount of time a
action happens.
Stable, with 7000 and 8000’s both working good, except for the
speed issues that I stated above.
Telrad support is working on them now.
Matt Carpenter
Amarillo Wireless
On Nov 16, 2016, at 4:37 PM, Ian Fraser <[email protected]>
wrote:
No release notes that I find (?) So what's the benefit ?
--
Ian Fraser
goZoom.ca <http://gozoom.ca/> Inc.
195 Libby's Rd. McNab-Braeside
K7S0E1
877(613) 622 0093 ext 21 <tel:%28613%29%20622%200093%20ext%2021>
On 16/11/2016 4:39 PM, Jeremy Austin wrote:
On Wed, Nov 16, 2016 at 12:37 PM, Ian Fraser
<[email protected]> wrote:
I'm still on 4013. Has 4573 fixed anything for anyone ? Like
the high upload utilization ? I'm using sf2/ssf0. Changing
subframe is not an option for me - I need to co-exist with a
another provider who will never change.
4573 seems fairly stable for us with 7ks running .105 and 8ks.
Didn't fix the upload KPI or (as far as we can tell)
performance.
--
Jeremy Austin
(907) 895-2311
(907) 803-5422 <tel:%28907%29%20803-5422>
[email protected]
Heritage NetWorks
Whitestone Power & Communications
Vertical Broadband, LLC
Schedule a meeting: http://doodle.com/jermudgeon
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--
Matthew Carpenter
806-316-5071 <tel:806-316-5071> office
806-236-9558 <tel:806-236-9558> cell
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--
Sincerely,
Justin Davis
SkyWerx COO
970-731-9790
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