board non-response just now - what happened?

I couldn’t access the boards from about 2 PM to 2:30 PM Chicago time. I did a tracert from my machine and got this very odd result. It’s obvious it was a network problem, not the SDMB’s.


Tracing route to boards.straightdope.com [208.100.26.199]
over a maximum of 30 hops:

  1     *        *        *     Request timed out.
  2     7 ms     7 ms     *     ge-1-37-ur01.chicago301.il.chicago.comcast.net [68.86.115.61]
  3     8 ms     7 ms     7 ms  68.87.231.113
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.
 10     *        *        *     Request timed out.
 11     *       53 ms     *     68.87.231.113
 12     *        *        *     Request timed out.
 13     *        *        *     Request timed out.
 14     *        *        *     Request timed out.
 15    75 ms     *        *     68.87.231.113
 16     *        *        *     Request timed out.
 17     *        *        *     Request timed out.
 18     *        *        *     Request timed out.
 19     *        *        *     Request timed out.
 20     *        *        *     Request timed out.
 21     *        *        *     Request timed out.
 22     *        *        *     Request timed out.
 23     *        *        *     Request timed out.
 24     *        *        *     Request timed out.
 25     *        *        *     Request timed out.
 26     *        *        *     Request timed out.
 27     *        *        *     Request timed out.
 28     *        *        *     Request timed out.
 29     *        *        *     Request timed out.
  30   166 ms     *        *     be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]

Trace complete.

I was also getting very poor response from Gmail and Yahoo. Here’s a tracert to Gmail. There are obvious problems starting at hop 11:




Tracing route to gmail.l.google.com [72.14.223.107]
over a maximum of 30 hops:

  1     *        *        *     Request timed out.
  2     *        7 ms    19 ms  ge-1-37-ur01.chicago301.il.chicago.comcast.net [68.86.115.61]
  3     8 ms     9 ms     9 ms  68.87.231.113
  4     *        *        *     Request timed out.
  5    22 ms    20 ms    21 ms  pos-0-0-0-0-cr01.indianapolis.in.ibone.comcast.net [68.86.85.58]
  6    19 ms    18 ms    18 ms  pos-0-8-0-0-cr01.chicago.il.ibone.comcast.net [68.86.85.113]
  7    62 ms    54 ms    45 ms  te-0-4-0-1-cr01.miami.fl.ibone.comcast.net [68.86.91.73]
  8    44 ms    45 ms    49 ms  te-0-7-0-0-cr01.atlanta.ga.ibone.comcast.net [68.86.84.69]
  9    60 ms    59 ms    59 ms  te-0-0-0-0-cr01.stratford.tx.ibone.comcast.net [68.86.84.54]
 10    76 ms    74 ms    74 ms  208.174.196.254
 11     *      295 ms     *     pr2-ge-3-0-0-298.losangelesequinix.savvis.net [208.174.196.253]
 12   300 ms   300 ms     *     cr2-loopback.lay.savvis.net [208.172.34.71]
 13   297 ms   296 ms     *     ber1-tenge-3-1.losangeles.savvis.net [204.70.193.50]
 14   300 ms   302 ms   301 ms  208.173.57.66
 15   299 ms   299 ms   299 ms  216.239.43.144
 16   316 ms   306 ms   316 ms  72.14.239.13
 17   308 ms   298 ms     *     64.233.174.81
 18   315 ms     *      338 ms  209.85.130.23
 19   309 ms   329 ms   330 ms  209.85.252.166
 20   330 ms     *        *     72.14.238.233
 21   302 ms   302 ms   302 ms  ar-in-f107.google.com [72.14.223.107]

Trace complete.

I also did tracerts to Gmail and the SDMB from a website I could get to, and there were no similar problems. (In fact, when there are persistent response problems from the SDMB, I always do tracerts, and network problems are so rare I can’t remember any.)

Also, the BBC website loaded fine. A tracert from my machine to it showed it left the Comcast network after only 2 or 3 hops, so I guess that means that route avoided the problem.

Any speculation as to what happened?

Now there’s a loop in two Comcast routers. I’m guessing that’s what happened to the SDMB before, but the servers just weren’t pinging. Overloaded?


Tracing route to www.haloscan.com [72.9.234.71]
over a maximum of 30 hops:

  1     *        *        *     Request timed out.
  2     8 ms     *        8 ms  ge-1-37-ur01.chicago301.il.chicago.comcast.net [68.86.115.61]
  3    11 ms     9 ms     9 ms  68.87.231.113
  4    20 ms    20 ms    30 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
  5    20 ms    22 ms    21 ms  68.87.231.113
  6    34 ms    32 ms    33 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
  7    32 ms    31 ms    31 ms  68.87.231.113
  8    42 ms    42 ms    44 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
  9    43 ms    46 ms    44 ms  68.87.231.113
 10    57 ms    53 ms    55 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 11    54 ms    57 ms    54 ms  68.87.231.113
 12   147 ms   130 ms   140 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 13    96 ms   123 ms    99 ms  68.87.231.113
 14   164 ms   173 ms   196 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 15    84 ms    81 ms   107 ms  68.87.231.113
 16   155 ms   104 ms    97 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 17    89 ms   120 ms    93 ms  68.87.231.113
 18   102 ms    99 ms   121 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 19   101 ms   112 ms   100 ms  68.87.231.113
 20   111 ms   109 ms   109 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 21   110 ms   110 ms   124 ms  68.87.231.113
 22   122 ms   122 ms   121 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 23   129 ms   121 ms   122 ms  68.87.231.113
 24   134 ms   141 ms   136 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 25   134 ms   135 ms   133 ms  68.87.231.113
 26   147 ms   148 ms   147 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 27   155 ms   154 ms   143 ms  68.87.231.113
 28   157 ms   156 ms   159 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]
 29   158 ms   156 ms   158 ms  68.87.231.113
 30   168 ms   171 ms   172 ms  be-30-ar01.indianapolis.in.indiana.comcast.net [68.87.231.114]

Trace complete.

Moved from General Questions to About This Message Board.

Gfactor
General Questions Moderator

Most likely, yes.

Comcast had some serious routing issues yesterday afternoon for a while. Don’t think it was SDMB-related.