nanog mailing list archives

Re: Time Warner Cable YouTube throttling


From: Min <qiu.min98 () gmail com>
Date: Wed, 6 Mar 2013 21:58:26 -0500

I use FIOS.  Here is my result:

 Host                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. Wireless_Broadband_Router.home    0.0%   165  285.1 563.9  68.2 2007. 376.1
 2. L100.WASHDC-VFTTP-127.verizon-gn  0.0%   165  299.8 560.3  59.1 2021. 384.4
 3. G0-9-4-1.WASHDC-LCR-22.verizon-g  0.6%   165  241.3 698.7  64.6 24918 1938.
 4. so-14-0-0-0.RES-BB-RTR1.verizon-  0.0%   165  217.2 705.7 100.6 24817 1926.
 5. 0.xe-4-1-0.XL4.IAD8.ALTER.NET     0.0%   165  308.0 714.6 109.8 24717 1920.
 6. TenGigE0-7-2-0.GW7.IAD8.ALTER.NE  0.0%   165  265.3 722.6 103.5 24617 1911.
    TenGigE0-7-0-0.GW7.IAD8.ALTER.NET
    TenGigE0-5-0-1.GW7.IAD8.ALTER.NET
    TenGigE0-7-1-0.GW7.IAD8.ALTER.NET
    TenGigE0-7-4-0.GW7.IAD8.ALTER.NET
    TenGigE0-5-0-0.GW7.IAD8.ALTER.NET
 7. google-gw.customer.alter.net     59.4%   165  281.3 982.9 162.3 24516 2940.
 8. 216.239.46.248                    0.6%   164  247.3 726.7 112.2 24416 1903.
 9. 72.14.238.173                     0.0%   164  203.1 729.7  85.9 24315 1895.
10. iad23s05-in-f6.1e100.net          0.6%   164  343.2 712.9  35.1 24215 1890.

In my case, I suspected two things.

  1. congestion (verizon over subscribed)
  2. packet out of order (high packet drops in alternet-google could be
a symptom of multipath)

Not sure which has bigger performance impact to youtube.

Min

On Wed, Mar 6, 2013 at 9:35 PM, Grant Ridder <shortdudey123 () gmail com> wrote:
The 1st one gets slow at XO and the 2nd and 3rd get slow at Sprint.

Now the interesting one with XO is that it is routed in a /30 that is
assigned to Google by XO.

network:Class-Name:network
network:ID:NET-XO-NET-d1302a54
network:Auth-Area:209.48.0.0/15
network:Network-Name:XO-NET-d1302a54
network:Organization;I:GOOGLE INC. (328874-1)
network:IP-Network:209.48.42.84/30
network:Admin-Contact;I:XCIA-ARIN
network:Tech-Contact;I:XCIA-ARIN
network:Created:20120917
network:Updated:20121018
network:Updated-By:ipadmin () eng xo com

-Grant

On Wed, Mar 6, 2013 at 8:25 PM, Min <qiu.min98 () gmail com> wrote:

3 traces all indicated the last hub are 80~100ms faster than the
second last hub.  Interesting.

Min

On Wed, Mar 6, 2013 at 9:07 PM, Derek Ivey <derek () derekivey com> wrote:
I just got home and tested with quite a few 1080p videos. No issues over
my
Hurricane Electric IPv6 tunnel. I did notice frequent stops to buffer on
my
FiOS IPv4 connection. I have a 50 Mbps down connection and don't even
come
close to maxing it when watching Youtube videos.

Here are a few traceroutes:

[2.1-BETA0][root@pfsense]/root(1): traceroute
r19---sn-p5qlsm7d.c.youtube.com
traceroute to r19.sn-p5qlsm7d.c.youtube.com (208.117.251.184), 64 hops
max,
40 byte packets
 1  L100.HRBGPA-VFTTP-12.verizon-gni.net (98.117.0.1)  1.222 ms 1.348 ms
0.834 ms
 2  G10-0-8-112.HRBGPA-LCR-01.verizon-gni.net (130.81.184.148) 2.839 ms
2.589 ms  2.443 ms
 3  P12-0-0.HRBGPA-LCR-02.verizon-gni.net (130.81.27.185)  14.880 ms
14.614
ms  14.698 ms
 4  so-12-1-0-0.RES-BB-RTR1.verizon-gni.net (130.81.28.254) 14.647 ms
14.696 ms  14.552 ms
 5  0.xe-3-1-1.BR1.IAD8.ALTER.NET (152.63.37.141)  15.027 ms 15.004 ms
15.064 ms
 6  te9-2-0d0.cir1.ashburn-va.us.xo.net (206.111.0.201)  38.517 ms
36.033
ms  34.816 ms
 7  216.156.8.189.ptr.us.xo.net (216.156.8.189)  31.958 ms  30.994 ms
29.194 ms
 8  209.48.42.86 (209.48.42.86)  124.931 ms  126.117 ms  124.303 ms
 9  208.117.251.184 (208.117.251.184)  26.483 ms  27.792 ms 27.974 ms

[2.1-BETA0][root@pfsense]/root(2): traceroute
r15---sn-p5qlsm76.c.youtube.com
traceroute to r15.sn-p5qlsm76.c.youtube.com (208.117.251.148), 64 hops
max,
40 byte packets
 1  L100.HRBGPA-VFTTP-12.verizon-gni.net (98.117.0.1)  1.077 ms 0.863 ms
0.968 ms
 2  G10-0-8-112.HRBGPA-LCR-01.verizon-gni.net (130.81.184.148) 2.429 ms
2.265 ms  2.456 ms
 3  P12-0-0.HRBGPA-LCR-02.verizon-gni.net (130.81.27.185)  14.788 ms
14.666
ms  14.643 ms
 4  so-12-1-0-0.RES-BB-RTR1.verizon-gni.net (130.81.28.254) 14.591 ms
14.479 ms  16.041 ms
 5  0.xe-10-0-0.BR2.IAD8.ALTER.NET (152.63.38.165)  15.007 ms 15.109 ms
14.975 ms
 6  144.232.8.209 (144.232.8.209)  187.038 ms  115.363 ms  117.669 ms
 7  sl-st31-ash-0-4-0-0.sprintlink.net (144.232.28.6)  116.263 ms
    sl-st31-ash-0-8-0-2.sprintlink.net (144.232.1.19)  116.491 ms
    sl-st31-ash-0-4-0-0.sprintlink.net (144.232.28.6)  116.934 ms
 8  sl-googl10-584821-0.sprintlink.net (144.228.205.34)  122.521 ms
122.780
ms  121.535 ms
 9  208.117.251.148 (208.117.251.148)  33.669 ms  37.652 ms 38.478 ms

[2.1-BETA0][root@pfsense]/root(6): traceroute
r10---sn-p5qlsm7l.c.youtube.com
traceroute to r10.sn-p5qlsm7l.c.youtube.com (208.117.251.47), 64 hops
max,
40 byte packets
 1  L100.HRBGPA-VFTTP-12.verizon-gni.net (98.117.0.1)  1.159 ms 0.831 ms
0.806 ms
 2  G9-0-4-212.HRBGPA-LCR-02.verizon-gni.net (130.81.139.126) 2.396 ms
2.435 ms  2.167 ms
 3  so-12-1-0-0.RES-BB-RTR1.verizon-gni.net (130.81.28.254) 14.497 ms
14.767 ms  14.695 ms
 4  0.xe-11-0-0.BR2.IAD8.ALTER.NET (152.63.38.169)  15.001 ms 15.074 ms
15.024 ms
 5  144.232.8.209 (144.232.8.209)  118.582 ms  116.717 ms  113.669 ms
 6  sl-st31-ash-0-4-0-3.sprintlink.net (144.232.3.169)  114.433 ms
117.698
ms
    sl-st31-ash-0-4-0-0.sprintlink.net (144.232.28.6)  115.981 ms
 7  sl-googl10-584821-0.sprintlink.net (144.228.205.34)  123.912 ms
124.402
ms  125.384 ms
 8  208.117.251.47 (208.117.251.47)  30.591 ms  30.676 ms  29.528 ms

Derek

On 3/6/2013 8:31 PM, Grant Ridder wrote:

Can any one provide traceroutes to youtube to see if there is any
correlation between last mile providers?

-Grant

On Wed, Mar 6, 2013 at 6:37 PM, Derek Ivey <derek () derekivey com
<mailto:derek () derekivey com>> wrote:

    I don't think it's just Time Warner. Definitely looks like XO. I
have
    Verizon FiOS and it was pretty bad for me as well (not sure if it
    still is
    since I'm not home right now). There's also atleast two threads in
the
    Verizon FiOS section on Broadband Reports:

    http://www.dslreports.com/forum/r28027601-Horrible-youtube-speeds


http://www.dslreports.com/forum/r28071070-How-to-Reddit-YouTube-firewall-rule-with-MI424wr

    Derek


    On Wed, Mar 6, 2013 at 5:56 PM, Rick Coloccia
    <coloccia () geneseo edu <mailto:coloccia () geneseo edu>> wrote:

    > I'd like to help, too, I'm from a TWC business class site with
    650 Mbps
    > bandwidth and still regularly poor performance with YouTube.
    >
    > -Rick
    >
    > Sent from my iPhone 4S
    >
    > On Mar 6, 2013, at 4:10 PM, Christopher Morrow
    <morrowc.lists () gmail com <mailto:morrowc.lists () gmail com>>
    > wrote:
    >
    > > On Wed, Mar 6, 2013 at 3:34 PM, Randy Carpenter
    <rcarpen () network1 net <mailto:rcarpen () network1 net>>
    > wrote:
    > >>
    > >> ----- Original Message -----
    > >>> On Wed, Mar 6, 2013 at 3:11 PM, Randy Carpenter
    > >>> <rcarpen () network1 net <mailto:rcarpen () network1 net>> wrote:
    > >>>>
    > >>>> We have recently been having some serious speed issues with
    YouTube
    > >>>> on our home connections, which are all Time Warner Cable.
    > >>>> Some searching on forums and such revealed a work around:
    > >>>>
    > >>>> Block 206.111.0.0/16 <http://206.111.0.0/16> at the router.
    > >>>
    > >>> this was reported elsewhere... it seems odd, since that's XO
    space,
    > >>> not Google and not TWC space. Would you care to engage in
some
    > >>> troubleshooting to help everyone out? :)
    > >>
    > >> I'll be happy to help troubleshoot in any way I can.
    > >
    > > excellent.. I'll arrange my ducks, let's chat offlist?
    > >
    >
    >







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