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Fibre Latency

DeclanTM
Grafter
Posts: 38
Registered: 23-10-2012

Fibre Latency

Hi,
I have been a Plusnet unlimited fibre customer for a few months now. I have always noticed my ping to be high around the 30ms region from the day it was installed. I had a lower ping than this on my old DSL service and other fibre customers seem to be getting pings around 12ms etc.
I have the full 80/20 sync speed so doubt my line is an issue, do some fibre connections just have a higher ping or is there a setting at Plusnet's side that can be changed to lower ping?
Thanks,
Declan
14 REPLIES
Community Veteran
Posts: 6,824
Thanks: 1
Registered: 27-10-2012

Re: Fibre Latency

Are you running wired/wireless?
Which sites are pinging around 30ms?
What do you get as a ping from speedtest.net and pinging bbc.co.uk (from the cmd prompt)?
DeclanTM
Grafter
Posts: 38
Registered: 23-10-2012

Re: Fibre Latency

Running wired over GB network, ping from BBC is around 27ms and Speedtest.net shows around 30ms in most tests.
Thanks,
Declan
Community Veteran
Posts: 6,824
Thanks: 1
Registered: 27-10-2012

Re: Fibre Latency

That's quite high. bbc.co.uk should be around 10ms.
Can you run the http://speedtest.btwholesale.com/ test and click on 'Further Diagnostics' then post the result?
Just to be clear too, you're not running any services (torrents/usenet/ftp etc.) when doing these tests?
DeclanTM
Grafter
Posts: 38
Registered: 23-10-2012

Re: Fibre Latency

Hi Andy,
Network is currently idle.
BTW tester is playing up just now, can get to first set of tests and receive these results:
Download: 73.60
Upload: 12.69
Latency: 39.25
When trying to run the extended tests I receive the following error message:
"The Performance Tester is currently unable to run a speed test for your broadband connection. Please try again shortly, however if this problem persists, raise the issue with your service provider."
I tried it a few times and got the same message.
Thanks,
Declan
Community Veteran
Posts: 6,824
Thanks: 1
Registered: 27-10-2012

Re: Fibre Latency

I'd expect a ping in the 20s at this time of day. Your speeds look good though. Not sure why you can't get the Further Diagnostics though.
Are you using a PN supplied router?
Plusnet Alumni (retired) chrispurvey
Plusnet Alumni (retired)
Posts: 5,369
Fixes: 1
Registered: 13-07-2012

Re: Fibre Latency

Hi DeclanTM,
Would it be possible for you to try a PPPoE connection and see if there is any difference?
DeclanTM
Grafter
Posts: 38
Registered: 23-10-2012

Re: Fibre Latency

Hi Chris,
I have tried using a direct PPPoE connection to my computer and it is not making a difference.
This is my Speedtest.net result:

Ping to BBC is as follows:
Pinging bbc.co.uk [212.58.253.67] with 32 bytes of data:
Reply from 212.58.253.67: bytes=32 time=23ms TTL=121
Reply from 212.58.253.67: bytes=32 time=23ms TTL=121
Reply from 212.58.253.67: bytes=32 time=24ms TTL=121
Reply from 212.58.253.67: bytes=32 time=24ms TTL=121
Ping statistics for 212.58.253.67:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 23ms, Maximum = 24ms, Average = 23ms

This isn't a huge issue however I had noticed that most other fibre customers are receiving >20ms pings and was wondering what was going on.
Thanks,
Declan
Community Veteran
Posts: 2,285
Thanks: 109
Fixes: 4
Registered: 18-02-2013

Re: Fibre Latency

C:\Users\Laptop>tracert 212.58.253.67
Tracing route to www-vip.cwwtf.bbc.co.uk [212.58.253.67]
over a maximum of 30 hops:
  1    3 ms    99 ms    99 ms  192.168.0.254
  2    9 ms    9 ms    8 ms  lo0-central10.pcl-ag03.plus.net [195.166.128.184
]
  3    8 ms    8 ms    8 ms  link3-central10.pcl-gw01.plus.net [84.93.249.68]
  4    8 ms    8 ms    7 ms  xe-1-2-0.pcl-cr01.plus.net [212.159.1.4]
  5    8 ms    8 ms    8 ms  ae1.ptw-cr01.plus.net [195.166.129.0]
  6    9 ms    8 ms    8 ms  kingston-gw.thdo.bbc.co.uk [212.58.239.6]
  7    *        *        *    Request timed out.
  8    9 ms    9 ms    23 ms  ae0.er01.cwwtf.bbc.co.uk [132.185.254.93]
  9    9 ms    9 ms    9 ms  132.185.255.156
10    9 ms    9 ms    9 ms  www-vip.cwwtf.bbc.co.uk [212.58.253.67]
Trace complete.
C:\Users\Laptop>pathping 212.58.253.67
Tracing route to www-vip.cwwtf.bbc.co.uk [212.58.253.67]
over a maximum of 30 hops:
  0  Laptop-PC [192.168.0.30]
  1  192.168.0.254
  2  lo0-central10.pcl-ag03.plus.net [195.166.128.184]
  3  link3-central10.pcl-gw01.plus.net [84.93.249.68]
  4  xe-1-2-0.pcl-cr01.plus.net [212.159.1.4]
  5  ae1.ptw-cr01.plus.net [195.166.129.0]
  6  kingston-gw.thdo.bbc.co.uk [212.58.239.6]
  7    *        *        *
Computing statistics for 150 seconds...
            Source to Here  This Node/Link
Hop  RTT    Lost/Sent = Pct  Lost/Sent = Pct  Address
  0                                          Laptop-PC [192.168.0.30]
                                0/ 100 =  0%  |
  1    0ms    0/ 100 =  0%    0/ 100 =  0%  192.168.0.254
                                0/ 100 =  0%  |
  2  20ms    0/ 100 =  0%    0/ 100 =  0%  lo0-central10.pcl-ag03.plus.net [1
95.166.128.184]
                                0/ 100 =  0%  |
  3    8ms    0/ 100 =  0%    0/ 100 =  0%  link3-central10.pcl-gw01.plus.net
[84.93.249.68]
                                0/ 100 =  0%  |
  4  11ms    0/ 100 =  0%    0/ 100 =  0%  xe-1-2-0.pcl-cr01.plus.net [212.15
9.1.4]
                                0/ 100 =  0%  |
  5  14ms    0/ 100 =  0%    0/ 100 =  0%  ae1.ptw-cr01.plus.net [195.166.129
.0]
                              100/ 100 =100%  |
  6  ---    100/ 100 =100%    0/ 100 =  0%  kingston-gw.thdo.bbc.co.uk [212.58
.239.6]
Trace complete.
C:\Users\Laptop>ping 212.58.253.67 -t
Pinging 212.58.253.67 with 32 bytes of data:
Reply from 212.58.253.67: bytes=32 time=14ms TTL=118
Reply from 212.58.253.67: bytes=32 time=22ms TTL=118
Reply from 212.58.253.67: bytes=32 time=24ms TTL=118
Reply from 212.58.253.67: bytes=32 time=24ms TTL=118
Reply from 212.58.253.67: bytes=32 time=16ms TTL=118
Reply from 212.58.253.67: bytes=32 time=20ms TTL=118
Reply from 212.58.253.67: bytes=32 time=30ms TTL=118
Reply from 212.58.253.67: bytes=32 time=31ms TTL=118
Reply from 212.58.253.67: bytes=32 time=35ms TTL=118
Reply from 212.58.253.67: bytes=32 time=24ms TTL=118
Reply from 212.58.253.67: bytes=32 time=36ms TTL=118
Reply from 212.58.253.67: bytes=32 time=18ms TTL=118
Reply from 212.58.253.67: bytes=32 time=28ms TTL=118
Reply from 212.58.253.67: bytes=32 time=30ms TTL=118
Reply from 212.58.253.67: bytes=32 time=31ms TTL=118
Reply from 212.58.253.67: bytes=32 time=9ms TTL=118
Reply from 212.58.253.67: bytes=32 time=10ms TTL=118
Reply from 212.58.253.67: bytes=32 time=10ms TTL=118
Ping statistics for 212.58.253.67:
    Packets: Sent = 18, Received = 18, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 9ms, Maximum = 36ms, Average = 22ms
Control-C

Dude it looks like you have big problems  Roll eyes
Community Veteran
Posts: 3,380
Thanks: 4
Registered: 18-01-2013

Re: Fibre Latency

For reference, here are my pings to the BBC from my FTTC connection (from a Linux server via SSH as it's the only thing that's connected via a wired connection) :
PING www.bbc.net.uk (212.58.244.66) 56(84) bytes of data.
64 bytes from bbc-vip111.telhc.bbc.co.uk (212.58.244.66): icmp_req=1 ttl=53 time=7.70 ms
64 bytes from bbc-vip111.telhc.bbc.co.uk (212.58.244.66): icmp_req=2 ttl=53 time=11.1 ms
64 bytes from bbc-vip111.telhc.bbc.co.uk (212.58.244.66): icmp_req=3 ttl=53 time=7.67 ms
64 bytes from bbc-vip111.telhc.bbc.co.uk (212.58.244.66): icmp_req=4 ttl=53 time=7.12 ms
64 bytes from bbc-vip111.telhc.bbc.co.uk (212.58.244.66): icmp_req=5 ttl=53 time=7.71 ms
64 bytes from bbc-vip111.telhc.bbc.co.uk (212.58.244.66): icmp_req=6 ttl=53 time=7.56 ms
DeclanTM
Grafter
Posts: 38
Registered: 23-10-2012

Re: Fibre Latency

Weird, don't really know what's going on, seems I am hitting high pings at the Plusnet gateway, don't know if this could be related to the high fibre latency during peak times which is a separate issue as this is even happening during the day.
This is my latest results:
Tracing route to www-vip.cwwtf.bbc.co.uk [212.58.253.67]
over a maximum of 30 hops:
  1    3 ms    <1 ms    <1 ms  10.0.0.1
  2    95 ms    48 ms  102 ms  lo0-central10.ptw-ag02.plus.net [195.166.128.196]
  3    25 ms    27 ms    34 ms  link5-central10.ptw-gw01.plus.net [84.93.248.40]
  4    40 ms    29 ms    61 ms  56.core.plus.net [212.159.1.56]
  5    28 ms    31 ms    27 ms  kingston-gw.thdo.bbc.co.uk [212.58.239.6]
  6    *        *        *    Request timed out.
  7    27 ms    26 ms    26 ms  ae0.er01.cwwtf.bbc.co.uk [132.185.254.93]
  8    48 ms    45 ms    25 ms  132.185.255.156
  9    32 ms    29 ms    28 ms  www-vip.cwwtf.bbc.co.uk [212.58.253.67]
Trace complete.

Thanks,
Declan
Community Veteran
Posts: 6,824
Thanks: 1
Registered: 27-10-2012

Re: Fibre Latency

Are you running Windows 7/8? Have you tried updating the drivers for your network card?
DeclanTM
Grafter
Posts: 38
Registered: 23-10-2012

Re: Fibre Latency

Hi Andy,
Results are the same from all my systems which include:
Windows 8 PC
OS X 10.8 iMac
Ubuntu Server
I have even tried pinging directly from the router and it produces the same results.
Thanks,
Declan
Community Veteran
Posts: 6,824
Thanks: 1
Registered: 27-10-2012

Re: Fibre Latency

I'm baffled then.
How have speeds been this evening?
dai
Grafter
Posts: 154
Thanks: 4
Registered: 26-05-2010

Re: Fibre Latency

I would be happy with your ping speeds. I am also on a FTTC connection, and my ping speeds average out at around 40-42ms!