Is FTP traffic being throttled/Incorrectly managed at peak times?
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Is FTP traffic being throttled/Incorrectly managed at peak times?
12-09-2013 8:55 PM
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Yes i'm aware that plusnet keep increasing capacity , but is this sufficient for the demand from my observations it would appear not to be so, IMO plusnet are only playing catch up in stead of being ahead of the demand , sorry but that's my thoughts on this , And if that isn't the case then someone at plusnet should be kicking some BT wholesale buts on this because i know that the cab isn't full ,it probably never will be , So that leaves from exchange onwards
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 8:32 AM
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bt throttled my connection back from 76/20 to 53/20 and every time a new customer gets added to the cabinet my speed +profile drops a tiny bit more, which is of course fine so long as it remains above 45/15 however if it keeps being load ratio shifted downwards as more n more people transfer to fibre then I do sincerely hope bt gets kicked in the arse for there extremely poor foresight and worse distribution system.. adding new users shouldn't affect my connection speed and nor should it affect my throughput but thanks to the way bt shares out fibre pipes with multiple end users on copper it does
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 9:19 AM
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Quote from: deathtrap Yes i'm aware that plusnet keep increasing capacity , but is this sufficient for the demand from my observations it would appear not to be so,
We add capacity ahead of demand, so I'm confident it's not going to be a problem with sheer capactity. If it was then you'd have probably be seeing more significant issues on the downstream.
Additionally we don't traffic manage upstream traffic, so it's unlikely to be that causing the issue.
Have you changed your MTU settings at all?
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 11:49 AM
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I tested again last night same number of files and FTP client using the same FTP server , as well as same gateway after 12am and guess what i had the max throughput which was consistent unlike it was during peak time There has to be congestion some where, as said the cab isn't full so unlikely to be that, So it's either BT 's side of the ship or plusnet's also i just tested again and again i get the max throughput which is consistent as it should be , so it has to be a peak time capacity issue, or something linked to that,
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 1:00 PM
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in other words PlusNet's capacity is fine but due to the sheer number of customers utilising the internet at the time period BT are lowering available throughput to each customer at the over subscribed hop in the network loop (bit like a roundabout and traffic lights ....) which will in all probability be the exchange in your area, hence why the available bandwidth bounces straight back to where it should be once the traffic levels disappear, if it was a throtteling issue then the problem would be present throughout all peek times and not just a select period within it
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 1:40 PM
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on those days i have also seen a 20mbps or more drop off in downstream throughput some weeks, But the other thing i have noticed is a subtle difference (increase)in throughput speeds at peak times following a bandwidth increase announcement which fades away again within a few weeks
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 1:48 PM
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
13-09-2013 2:30 PM
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Quote from: deathtrap From what i can see, is that the lower throughput co-insides within plusnet's peak time window ie usually 19:30-20:00 till 23:00 -midnight (latency hump) that also has been reduced is still there also throughput will sometimes take a bigger hit on Sunday or Mondays as for some unexplained reason plusnet customers use their connections more on those days which i find a bit odd
on those days i have also seen a 20mbps or more drop off in downstream throughput some weeks, But the other thing i have noticed is a subtle difference (increase)in throughput speeds at peak times following a bandwidth increase announcement which fades away again within a few weeks
i'd check maint announcements for both bt and plusnet to see if they co-incide with the changes, back when I was with bt they always did network maint on a weekend and half the time that involved them shutting down the core nodes one after another severely affecting bandwidth not to mention the huge ammounts of line damage that occurs on weekends causing a lot of traffic to get shunted through different relays (where possible) to enable at least a minimum service level to be given to the affected area customers
its also worth noting that a lot of business customers will have there automated runs take place to shift files overnight between sites so there network runs at normal pace during the day when all there workforce is logged in, this in itself can exacerbate the problems particularly for people who are in areas affected by the load sharing systems (this is totally outside of PlusNet's control though), and of course because business customers typically pay for a guaranteed service there traffic will hog resources until there finished at which point they will be freed up for normal use by residential (non guaranteed service users) nevermind the fact that the servers your connecting to can be behind an overloaded hop or indeed the destination can be oversubscribed which will also delay things greatly.
a few years ago there was a problem with a router advertising itself as underused when in fact it was so full up everything was buffered to the max and dropping half the data sent to it, it took weeks to find and replace that unit as the traffic flow system couldn't "see the problem" because everything was working within tolerance, similar problems are caused frequently by dodgy DNS servers, and that's without taking into account different modulation methods circuit hopping from old to new equipment and a of course the problems caused by nefarious groups or individuals
when all else fails your best bet is to hold off on the uploads until these less on the network
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
17-09-2013 9:30 PM
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I am seeing download speeds of 200k to 400k on a remote connection that normally achieves 1800k to 2000k during the day.
My upload speed to other places is 1800k to 2000k. I am not downloading huge amounts but it is hampering the speed of my work since I distribute what I download to other places. This seems to be a recent thing.
I am on an 80/20 fibre connection.
As if by magic normal speed is back at 22.00
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
17-09-2013 10:21 PM
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Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
18-09-2013 8:07 AM
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the guy next door to me has the BT 120 product and he achieves the same download speed as I do, in fact only last night we were discussing and testing speed to see if it was ISP or backhaul related (we had people on 6 different isp's in different parts of town do the test) and discovered we were all achieving exactly half of our sync speed at best
now what we didn't know was is it just a local lack of backhaul cable or is it a nationwide problem .....BT have announced many changes in the last few years but not since before the introduction of adsl2+ have they announced a change in the number of backhaul pipes, so either they somehow managed to change there terabyte pipe into 100terabyte pipe or there overselling the capacity and lying to everyone about it ....
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
18-09-2013 10:52 AM
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http://community.plus.net/forum/index.php/topic,108269.0.html
The response from Mr Richardson
" On your product, we operate restrictions down to 2Mb/s between 8pm and 10pm only. At all other times, the product is intended to allow up to your lines speed. We also operate external FTP in our Gold queue, so should not be squeezed, certainly at this time of day."
Now I saw a drop from 1800-2000k to 200-400k on a business unlimited fibre line 80/20 where I achieve very good speeds. In fact as soon as I noticed the low speed I did a speed test. http://www.speedtest.net/my-result/2973463065. this leads me to believe that Other FTP is being managed severely even on a business account ..from 1800k to 400k is a huge drop.
As I said previously .. As if by magic normal speed is back at 22.00.
Unfortunately the my work usage starts at 19.00 weekdays and ends at 23.00 but the essential part is early on as I am working with a deadline for the newspaper industry.
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
18-09-2013 11:05 AM
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and even on there the guy you quoted has said in the final post of the thread the info given in the ticket was inaccurate (meaning wrong)
as for the business service surely that would depend on the contract option taken, pretty sure a business pays for what it wants and gets what it pays for (so if they want a dedicated ftp service they would get one but if they want other traffic given priority it will be)
if its your business then perhaps you need to read your contract to see what you signed up for, my dads service gave him unlimited http but only allowed data streaming outside of certain hours .....
Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
18-09-2013 11:33 AM
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Re: Is FTP traffic being throttled/Incorrectly managed at peak times?
18-09-2013 11:35 AM
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What is the full name of your account type and when did you sign up to it? (It will be shown at https://portal.plus.net/my.html?s=0&action=account_summary)
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
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