[outages] Comcast in Silicon Valley -- Oakland or thereabouts just broke?

Jeremy Chadwick jdc at koitsu.org
Wed Oct 2 19:54:34 EDT 2013


This just happened -- looks like something in Comcast's network within
Oakland broke, reconverged (quickly and seamless), but issues remain.

Ren Provo et al, if you're lurking, might want to make someone aware of
this (if they aren't already).  :-)

src: 76.102.14.35
dst: 208.79.90.130

=== Wed Oct  2 16:14:00 PDT 2013  (1380755640)
Start: Wed Oct  2 16:14:00 2013
HOST: icarus.home.lan             Loss%   Snt   Rcv  Last   Avg  Best  Wrst
  1.|-- 192.168.1.1                0.0%    40    40   0.4   0.3   0.2   0.4
  2.|-- 76.102.12.1                0.0%    40    40   9.6  10.8   8.1  73.5
  3.|-- 68.86.249.253              0.0%    40    40   8.9  10.2   8.3  62.2
  4.|-- 69.139.199.98              0.0%    40    40  10.6  13.1   9.8  47.4
  5.|-- 68.85.155.14               0.0%    40    40  12.0  16.8  11.4  87.7
  6.|-- 68.86.90.157               0.0%    40    40  14.6  17.8  12.6  87.5
  7.|-- 68.86.89.210               0.0%    40    40  23.7  24.7  20.6  92.9
  8.|-- 68.86.87.210               0.0%    40    40  25.9  25.0  20.7  99.0
  9.|-- 173.167.57.138             0.0%    40    40  22.1  24.7  21.3  89.0
 10.|-- 69.31.127.141              0.0%    40    40  20.5  22.0  19.8  67.1
 11.|-- 69.31.124.114              0.0%    40    40  20.6  21.6  20.0  45.9
 12.|-- 67.199.135.102             0.0%    40    40  39.9  36.5  21.1 231.0
 13.|-- 208.79.90.130              0.0%    40    40  21.2  20.7  20.2  21.7
=== END

=== Wed Oct  2 16:15:00 PDT 2013  (1380755700)
Start: Wed Oct  2 16:15:00 2013
HOST: icarus.home.lan             Loss%   Snt   Rcv  Last   Avg  Best  Wrst
  1.|-- 192.168.1.1                0.0%    40    40   0.2   0.3   0.2   0.4
  2.|-- 76.102.12.1                0.0%    40    40   8.1   9.4   8.1  13.6
  3.|-- 68.86.249.253              0.0%    40    40   8.7   9.7   8.4  14.1
  4.|-- 68.86.143.98               0.0%    40    40  13.1  13.1  10.2  21.1
  5.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  6.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  7.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  8.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  9.|-- 173.167.57.138             0.0%    40    40  33.0  33.9  31.6  37.1
 10.|-- 69.31.127.141              5.0%    40    38  30.2  31.4  29.7  39.3
 11.|-- 69.31.124.114              7.5%    40    37  31.8  38.5  29.8 104.0
 12.|-- 67.199.135.102             7.5%    40    37  31.1  36.6  30.6 119.7
 13.|-- 208.79.90.130              7.5%    40    37  30.9  31.9  30.4  38.9
=== END

68.86.249.253 = te-0-2-0-5-ur06.santaclara.ca.sfba.comcast.net
69.139.199.98 = te-1-1-0-11-ar01.oakland.ca.sfba.comcast.net
68.85.155.14  = be-90-ar01.sfsutro.ca.sfba.comcast.net
68.86.143.98  = te-1-1-0-5-ar01.oakland.ca.sfba.comcast.net

And packet loss has gradually been getting worse (impacting all forms of
packets, not just TCP).

=== Wed Oct  2 16:45:00 PDT 2013  (1380757500)
Start: Wed Oct  2 16:45:00 2013
HOST: icarus.home.lan             Loss%   Snt   Rcv  Last   Avg  Best  Wrst
  1.|-- 192.168.1.1                0.0%    40    40   0.2   0.3   0.2   0.4
  2.|-- 76.102.12.1                0.0%    40    40   8.6   9.9   8.1  14.3
  3.|-- 68.86.249.253              0.0%    40    40   9.2  10.2   8.4  16.7
  4.|-- 68.86.143.98               0.0%    40    40  13.9  13.1  10.6  16.6
  5.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  6.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  7.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  8.|-- ???                       100.0    40     0   0.0   0.0   0.0   0.0
  9.|-- 173.167.57.138            15.0%    40    34  34.6  34.8  31.7  41.7
 10.|-- 69.31.127.141             25.0%    40    30  31.3  32.6  30.0  41.7
 11.|-- 69.31.124.114              5.0%    40    38  31.8  33.5  30.5  58.6
 12.|-- 67.199.135.102            12.8%    39    34  30.9  37.1  30.9  77.3
 13.|-- 208.79.90.130              7.7%    39    36  32.9  32.3  30.8  37.3
=== END

And here's what I see on the return path, for a brief run:

src: 208.79.90.130
dst: 76.102.14.35

 Host                                           Loss%   Snt   Rcv  Last   Avg  Best  Wrst
 1. 208.79.90.129                                0.0%    93    93   1.5   6.1   0.9 163.0
 2. s7.lax.arpnetworks.com                       0.0%    93    93   0.7  11.2   0.5 150.5
 3. ge0-15.as01.lax07.mzima.net                  0.0%    93    93   4.1   2.4   0.4  64.6
 4. ae3-50g.cr1.lax1.us.nlayer.net               0.0%    93    93   0.6   2.2   0.4  56.0
 5. ae1-50g.ar1.lax1.us.nlayer.net               1.1%    93    92   3.1   3.3   1.3   6.4
 6. be-102-pe01.600wseventh.ca.ibone.comcast.ne  0.0%    93    93   3.8   3.1   1.1   5.4
 7. pos-0-8-0-0-cr01.losangeles.ca.ibone.comcas  0.0%    93    93   3.0   2.9   1.5   6.1
 8. he-2-15-0-0-cr01.sanjose.ca.ibone.comcast.n  0.0%    92    92   8.6  10.3   8.1  12.5
 9. he-0-9-0-0-ar01.sfsutro.ca.sfba.comcast.net  0.0%    92    92  12.5  11.6   9.8  13.6
10. be-100-ar01.oakland.ca.sfba.comcast.net      3.3%    92    88  22.0  25.2  21.9  49.6
11. te-0-4-0-2-ur06.santaclara.ca.sfba.comcast.  3.3%    92    89  23.8  23.8  23.0  25.4
12. te-6-0-acr03.santaclara.ca.sfba.comcast.net  9.8%    92    83  23.8  24.4  22.6  46.3
13. c-76-102-14-35.hsd1.ca.comcast.net           6.5%    92    86  36.3  31.7  30.5  38.3

-- 
| Jeremy Chadwick                                   jdc at koitsu.org |
| UNIX Systems Administrator                http://jdc.koitsu.org/ |
| Making life hard for others since 1977.             PGP 4BD6C0CB |




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