BBC I player streaming issues tonight
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BBC I player streaming issues tonight
23-10-2013 9:48 PM
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Re: BBC I player streaming issues tonight
23-10-2013 10:13 PM
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http://www.bbc.co.uk/iplayer/diagnostics#results
Download Speed: 9796kbps
Stream 1: 4821kbps
Stream 2: 3350 kbps
Stream 3 3325kbps
Doesn't look like a gateway issue as my other speed tests show my normal 19mbps.
Re: BBC I player streaming issues tonight
23-10-2013 10:15 PM
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With Plusnet's DNS servers:
[tt]traceroute to cp41752.edgefcs.net (23.61.251.63), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 3.052 ms
2 lo0-central10.pcl-ag02.plus.net (195.166.128.183) 21.749 ms
3 link-a-central10.pcl-gw01.plus.net (212.159.2.164) 21.236 ms
4 xe-10-1-0.pcl-cr01.plus.net (212.159.0.196) 20.294 ms
5 ae1.ptw-cr01.plus.net (195.166.129.0) 21.009 ms
6 *
7 a23-61-251-63.deploy.static.akamaitechnologies.com (23.61.251.63) 22.909 ms[/tt]
With 194.72.9.34 (ns5.bt.net) as your DNS server, then cp41752.edgefcs.net might resolve to 92.122.123.199:
[tt]traceroute to 92.122.123.199 (92.122.123.199), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 2.990 ms
2 lo0-central10.pcl-ag02.plus.net (195.166.128.183) 21.228 ms
3 link-a-central10.pcl-gw01.plus.net (212.159.2.164) 21.555 ms
4 xe-10-1-0.pcl-cr01.plus.net (212.159.0.196) 20.621 ms
5 ae1.ptw-cr01.plus.net (195.166.129.0) 20.609 ms
6 195.99.126.138 (195.99.126.138) 20.537 ms
7 core1-te0-15-0-4.ealing.ukcore.bt.net (109.159.254.204) 23.741 ms
8 peer2-xe3-2-0.telehouse.ukcore.bt.net (109.159.254.221) 23.569 ms
9 195.99.126.133 (195.99.126.133) 22.355 ms
10 a92-122-123-199.deploy.akamaitechnologies.com (92.122.123.199) 23.173 ms[/tt]
Re: BBC I player streaming issues tonight
23-10-2013 10:24 PM
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Re: BBC I player streaming issues tonight
23-10-2013 10:43 PM
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the results from the diag test for me
Download speed: 74032 kbps
Streaming speed ( 1 😞 2624 kbps Akamai which has a 12 mbps max limit
"" "" "" ( 2 😞 14968 kbps used for HD Level 3
"" "" "" ( 3 😞 20565 kbps = limelight networks CDN
But even limelight CDN tonight was pausing a few times which could also be peak time related
And for me cp41752.edgefcs.net resolves to 2.20.183.84
Re: BBC I player streaming issues tonight
23-10-2013 10:52 PM
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Some are not good for giving the closest CDN server.
Always suspected google dns point to CDN's closer to France.
Re: BBC I player streaming issues tonight
23-10-2013 11:06 PM
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and from the Gateways i've been on it does differ, some don't show the routing detour whilst others do weird, as you would assume all would route the same of similar
http://en.utrace.de/ip-address/2.20.183.84
Re: BBC I player streaming issues tonight
23-10-2013 11:27 PM
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bbc iplayer speed test has now improved for me:
Download Speed: 19811 kbps
Stream 1: 10266 kbps
Stream 2: 19840 kbps
Stream 3 19823 kbps
Re: BBC I player streaming issues tonight
24-10-2013 1:45 AM
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Download speed: 73805 kbps
stream 1: 10423
stream 2: 20602
stream 3: 20247
The first speed test connects to bbcdl4.thdo.bbc.co.uk 212.58.225.80 the other ip's for the streams do vary, but quiet a few seem to resolve to level 3 ip's some in uk others in Germany, if the geo locations are correct , but i do know that akamai has the lowest bandwidth speed out of the 3 cdns as i have a app that will download the content using RTMPE/RTMP protocol, and akamai will download at 10-11mbps whilst LLN downloads at around 20-22mbps and level3 24mbps unless the cdn's are being hammered of course, as i have seen akamai stream download at less than 1mbps (300kbps) before today
I would be surprised if the max data rate of akamai cdn stream is the reason behind this issue, i think it is more of a CDN box capacity maybe ISP side ,or they may share resources with other ISP's I say this because during the time i was with a small reseller on a 02 wholesale connection, akamai worked flawlessly , same max data rate from it, but never buffered or gave that insufficient bandwidth message
Re: BBC I player streaming issues tonight
24-10-2013 6:59 AM
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Quote from: deathtrap I don't use ISP's DNS servers never have
Quote from: deathtrap i think it is more of a CDN box capacity maybe ISP side ,or they may share resources with other ISP's
If you don't use Plusnet's DNS servers, then you won't be using what must be Plusnet's own Akamai box, or at least one that's very close. Instead you're going to one further away.
Re: BBC I player streaming issues tonight
24-10-2013 12:20 PM
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The dns servers i use today are the same as i have used for years,
On testing your theory today i started a live stream on i player the IP it was downloading data from was 195.59.126.255 which is reported to be located in the uk and is Akamai cdn, but interestingly C &W own the IP ?
The panorama program that i watched last night used a different akamai stream IP today was 213.155.157.223 again reported to be located in the uk
Quote The number of this IP address is 213.155.157.223. This IP address is active in United Kingdom. IP Country code is GB. ISP of this address is "TeliaSonera AB", organization is "Akamai International B.V.
If i select to watch last weeks panorama http://www.bbc.co.uk/iplayer/episode/b03dz52t/Panorama_Britains_New_Banking_Scandal/it still uses akamai but this ip 80.156.249.47 http://www.iplocationfinder.com/80.156.249.47 is in Germany but uses 2 streams not one that alternate
As for which IP it connected to last night i don't know,but with checking every time i stream something from the bbc it's impossible to know for sure either way
But what i do know is that for the past 3-4 yrs my DNS choice has been level 3 and in that time i have had bb with 3 ISP's 2 big consumer ISP's and one with a small ISP using a 02 wholesale product , And bbc streaming with the small isp was faultless at any time of the day
Re: BBC I player streaming issues tonight
24-10-2013 1:24 PM
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Quote from: ejs With Plusnet's DNS servers:
[tt]traceroute to cp41752.edgefcs.net (23.61.251.63), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 3.052 ms
2 lo0-central10.pcl-ag02.plus.net (195.166.128.183) 21.749 ms
3 link-a-central10.pcl-gw01.plus.net (212.159.2.164) 21.236 ms
4 xe-10-1-0.pcl-cr01.plus.net (212.159.0.196) 20.294 ms
5 ae1.ptw-cr01.plus.net (195.166.129.0) 21.009 ms
6 *
7 a23-61-251-63.deploy.static.akamaitechnologies.com (23.61.251.63) 22.909 ms[/tt]
I don't think any other DNS servers will give IP addresses with shorter routes than the above.
Quote from: deathtrap i think it is more of a CDN box capacity maybe ISP side ,or they may share resources with other ISP's I say this because during the time i was with a small reseller on a 02 wholesale connection, akamai worked flawlessly , same max data rate from it, but never buffered or gave that insufficient bandwidth message
Why would you think that when you're not accessing Plusnet's Akamai box? Instead you're accessing some other Akamai box further away, which probably will be used by others. Perhaps the small ISP had plenty of spare capacity even at peak times, but I doubt Plusnet has vast amounts of unused bandwidth at peak times.
Re: BBC I player streaming issues tonight
24-10-2013 5:48 PM
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Quote from: ejs With Plusnet's DNS servers:
[tt]traceroute to cp41752.edgefcs.net (23.61.251.63), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 3.052 ms
2 lo0-central10.pcl-ag02.plus.net (195.166.128.183) 21.749 ms
3 link-a-central10.pcl-gw01.plus.net (212.159.2.164) 21.236 ms
4 xe-10-1-0.pcl-cr01.plus.net (212.159.0.196) 20.294 ms
5 ae1.ptw-cr01.plus.net (195.166.129.0) 21.009 ms
6 *
7 a23-61-251-63.deploy.static.akamaitechnologies.com (23.61.251.63) 22.909 ms[/tt]
I don't think any other DNS servers will give IP addresses with shorter routes than the above.
Why would you think that when you're not accessing Plusnet's Akamai box? Instead you're accessing some other Akamai box further away, which probably will be used by others. Perhaps the small ISP had plenty of spare capacity even at peak times, but I doubt Plusnet has vast amounts of unused bandwidth at peak times.
As said last night in reply 6 , cp41752.edgefcs.net resolved to the same IP 23.61.251.63 as you have in your tracert And what does cp41752.edgefcs.net represent ,plusnet's akamai cdn box ?
Oh today a tracert to the above address resolves to a different IP 80.156.249.39 I would think it can change frequently to a number of different IP's based on capacity levels perhaps ?? But even using when using plusnet dns in testing the akamai IP that Iplayer connects to can still be in Germany currently watching something on i player using akamai CDN and is downloading using 2 streams that alternate to this IP 80.156.149.13
See what IP it uses for you http://www.bbc.co.uk/iplayer/episode/b01r1267/Perfection_Series_3_Episode_39/ If the actual program makes any difference, which i may do, but it probably won't be the only factor that determines which IP/CDN you connect to, it maybe random, Which does kind of shoot the DNS theory in the foot to some extent
As for the small ISP having lots of spare bandwidth i couldn't say but i do know it used Entanet for peering and other services,
Re: BBC I player streaming issues tonight
24-10-2013 7:22 PM
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cp41752.edgefcs.net is the hostname for the BBC iplayer RTMP Akamai CDN servers.
bbcmedia.fcod.llnwd.net is the hostname for BBC iplayer limelight CDN servers.
The hostnames don't change. I don't know how Akamai or Limelight is selected. At the moment, cp41752.edgefcs.net resolves to a large selection of IP addresses using Plusnet's DNS servers: 23.62.1.180, 23.62.1.181, 23.62.1.182, 23.62.1.173, 23.62.1.188, 23.62.1.175, 23.62.1.183, 23.62.1.189, 23.62.1.174. The 23.61.*.* and 23.62.*.* addresses are part of Plusnet's most direct connection to Akamai.
Re: BBC I player streaming issues tonight
24-10-2013 9:10 PM
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