Terrible performance Leicester (LE3) - Page 4

Chrysalis · 05-11-2010, 20:06

Well kind of predictable, FTTC is the reason these upgrades are happening, so is not a surprise they prioritise FTTC areas.

I have always considered that VM do their research and will be aware of what areas are good competition areas, short lines with LLU etc. LE3 is mostly at least on the west side long lines and the inner city exchanges also have no BE LLU. VM will be aware that they can slack on the maintenance and probably still keep customers because the competition is of low standard.

BT do similiar, they let exchanges with no LLU/VM presence get congested (amber or red status) and take their time on fixing it, but in areas with BE LLU and also VM, they will always be green status uncongested.

My service is now faster during peak then off peak, effectively peak is the new off peak.

during evenings I get ranging speeds but typically now above 15mbit. (on speedtest,net, lower in single stream stuff).
12.01 am last test which was this morning I got 1.2meg/sec.
12.40 am 6meg/sec
and 4am 9meg/sec
daytime usually 19-20meg/sec but still some variance.

oh and I also still have large ssh lag, missing images on websites and broken streaming. This all occurs even if speedtesting high.
so basically I now only get ok speeds when STM is on.

philce · 05-11-2010, 21:54

Oh well , spoke too soon!

Things are getting worse again!

Latest Graph.

Chrysalis · 06-11-2010, 02:17

off peak speeds are now bearable after hopping to a new downstream port. Seems there is a bad balancing issue. around 16-17mbit.

will see later if it fixes the web browsing and streaming issues.

philce · 06-11-2010, 09:33

Quote:

Originally Posted by Chrysalis

off peak speeds are now bearable after hopping to a new downstream port. Seems there is a bad balancing issue. around 16-17mbit.

will see later if it fixes the web browsing and streaming issues.

How did you change port?

Chrysalis · 06-11-2010, 15:32

Turn the modem off, probably for at least 15 minutes. But before you do it check the modem status page first http://192.168.100.1/ and look what downstream channel you are on. Then turn it off 15+ minutes and turn it back on again, give it a minute or so to boot and connect and then check if you on a new channel.

On overlay you locked to only 1 upstream channel tho, so can only change the downstream not the upstream. This new channel I am on is still is all over the place during today but this morning between midnight and 6am was a lot faster than my other channel.

philce · 06-11-2010, 21:18

Quote:

Originally Posted by Chrysalis

Turn the modem off, probably for at least 15 minutes. But before you do it check the modem status page first http://192.168.100.1/ and look what downstream channel you are on. Then turn it off 15+ minutes and turn it back on again, give it a minute or so to boot and connect and then check if you on a new channel.

On overlay you locked to only 1 upstream channel tho, so can only change the downstream not the upstream. This new channel I am on is still is all over the place during today but this morning between midnight and 6am was a lot faster than my other channel.

Cheers, ill try that next time things start playing up.

Thing is, its much better tonight, I dont get it! (perhaps everyone is at Abbey Park watching our council tax go up in smoke!)

Chrysalis · 06-11-2010, 21:44

congestion can sometimes ease off, but is probably due to less people been online for any given reason or perhaps heavy downloaders taking a break.

VM's local network is fragile, 3 20mbit users downloading at full speed will saturate a downstream channel holding 100s of users. On the upstream it requires more users but of course there is only 1 upstream channel. Of course we also have the 50mbit users on the overlay as well.

LE3 is oversubscribed I have little doubt, VM didnt even try to deny it, what I find sad is they dont have the moral to suspend new signups whilst fixing the problem, and twice now I had to tell them they overloaded so can start upgrade work when they claim they normally do it as a matter of course via monitoring. Last time was in early may late april time and the reseg didnt complete until september. I also think multiple reseg's are needed but I expect they will only do one at a time doing the absolute minimum required. This was proven already when the last reseg barely made things work for a month. Given it takes tham half a year to do a reseg they need to ensure there is enough capacity free for 6 months worth of growth after a reseg.

Chrysalis · 07-11-2010, 22:26

my long line adsl has been outperforming my VM for about the last 6 hours, last speedtest was 4.71 down and 0.70 up. So even during traffic shaping hours speedtests dont even get above 25%.

Chrysalis · 12-11-2010, 01:23

some have question if people like me who arent happy will do the only thing that hurts VM and leave.

Here are my speedtest and pingtest results from monday to today. Adsl side by side for comparison, (long line).

Ukonline has the slower maximum speed but is very stable in performance no matter what time of day.

speedtest
down up time day isp
14.27 0.72 9am monday VM
16.01 0.73 midday monday VM
4.56 0.73 2.50pm monday VM
16.24 0.72 11.55pm monday VM
0.34 0.73 12.05am tuesday VM
18.21 0.72 1.40am tuesday VM
14.96 0.70 3.30am tuesday VM
17.01 0.72 9.50am tuesday VM
1.34 0.58 6.20pm tuesday VM
1.21 0.72 8.10pm tuesday VM
9.41 0.73 11.40pm tuesday VM
4.65 0.72 5.30pm wed VM
15.02 0.45 3.30am thurs VM
8.76 0.48 3.31am thurs VM
14.96 0.66 3.32am thurs VM
6.02 0.72 10.15am thurs VM
13.89 0.72 0.06am fri VM

4.58 1.04 9am monday ukonline
4.60 1.03 midday monday ukonline
4.56 1.04 2.50pm monday ukonline
4.58 1.04 11.55pm monday ukonline
4.56 1.03 12.05am tuesday ukonline
4.55 1.03 1.40am tuesday ukonline
4,61 1.03 3.30am tuesday ukonline
4.59 1.04 9.50am tuesday ukonline
4.58 1.04 6.20pm tuesday ukonline
4.52 1.03 8.10pm tuesday ukonline
4.56 1.03 11.40pm tuesday ukonline
4.65 1.04 5.30pm wed ukonline
4.49 1.03 3.30am thurs ukonline
4.49 1.04 3.31am thurs ukonline
4.50 1.04 3.32am thurs ukonline
4.54 1.04 10.15am thurs ukonline
4.48 1.03 0.06am fri ukonline

pingtest no packet loss shown as always 0%
latency(ms) jitter(ms) time day isp
35 21 9am monday VM
38 16 midday monday VM
72 39 2.50pm monday VM
38 16 11.55pm monday VM
196 71 12.05am tuesday VM
45 12 1.40am tuesday VM
38 24 3.30am tuesday VM
39 29 9.50am tuesday VM
94 41 6.20pm tuesday VM
312 256 8.10pm tuesday VM
65 51 11.40pm tuesday VM
39 27 5.30pm wed VM
49 42 3.30am thurs VM
32 95 3.31am thurs VM
36 37 3.32am thurs VM
41 68 10.15am thurs VM
13.89 0.72 0.06am fri VM

17 0 9am monday ukonline
18 1 midday monday ukonline
18 1 2.50pm monday ukonline
16 1 11.55pm monday ukonline
17 0 12.05am tuesday ukonline
16 1 1.40am tuesday ukonline
17 0 3.30am tuesday ukonline
18 1 9.50am tuesday ukonline
18 1 6.20pm tuesday ukonline
18 0 8.10pm tuesday ukonline
16 0 11.40pm tuesday ukonline
18 0 5.30pm wed ukonline
16 1 3.30am thurs ukonline
19 1 3.31am thurs ukonline
17 0 3.32am thurs ukonline
18 0 10.15am thurs ukonline
18 0 0.06am fri ukonline

Chrysalis · 17-11-2010, 10:31

VM have another shot, my ukonline (easynet) has flapping routes (is broken) so VM is now my default again. For whatever reason by coincidence today the jitter is very low as well. So if it stays low it will give me an indication if the missing images etc. are down to congestion or the shaping. For the hour or so I have been using it I have not had browsing issues.

philce · 17-11-2010, 13:29

Things seem better at the moment, no stalls or missing images recently.
Im not using the VM DNS servers though, I use the google ones, and seems OK so far?

There is clearly congestion though, it is visible on the ping graphs, usual times so to be expected.

Anyone got any info regarding the upstream upgrades? Perhaps that is why things seem to have settled?

qasdfdsaq · 17-11-2010, 14:38

Beats mine:

Still, I'm not getting very big speed problems on mine, even with those latencies.

Sorry for the basic question, but what are your power levels like?

All I know about the upstream upgrades is they're increasing capacity by 6x (in the first phase) and individual speeds by just under 3x. So it should help things. I don't know if your modem config gets updated as soon as the upgrades are done or some time after though.

Chrysalis · 17-11-2010, 23:00

Browsing is still ok (not tried streaming but will do in few minutes), latency is of course high again and speeds dropped.

What I am finding odd since late oct is that in the past on this overlay port I have had high jitter but speeds were unaffected ie. I could still pull down 20mbit/sec. Now I have speed issues even when jitter is low. I suspect the shaping hw on my port may be getting saturated. As thats what got introduced around that time.

My power levels are currently around 2 to 2.5db. Previously was around 0db but I removed one of my atennuators. I read somewhere that on this modulation that -3 to +7 is the optimal range which puts the middle of that range above 0, I also figured since the port is highly contended having a louder signal may help things. Nevertherless after I removed the attenuator things seem better but not a huge difference. I still have a 10db attenuator in there as without that the power level is way too high.

I will take your graph for mine philce please.

qasdfdsaq · 18-11-2010, 18:00

Apart from the high minimum ping, I'd take my O2 graph over VM anyday.

Ignitionnet · 18-11-2010, 18:26

Want mine instead?

[img]Download Failed (1)[/img]

Note the peak time congestion