[Outages-discussion] Level3/NTT/Comcast packet loss/latency

Sean Harlow sean at seanharlow.info
Mon Nov 6 14:05:46 EST 2017


No point in making more pagers go off with outages@ traffic.

Here's what I'm seeing from Akron when trying to connect to a Comcast-based
customer in Pittsburgh (first and last hops removed for privacy):

 2. static-acs-24-239-210-1.zoominternet.net
                                                              0.0%    84
 15.0  10.6   6.3  31.4   4.1
 3. ???
 4. ???
 5. ???
 6. ???
 7. ae-2.r25.nycmny01.us.bb.gin.ntt.net
                                                               0.0%    84
 31.1  32.6  27.9  43.8   3.7
 8. ae-9.r22.asbnva02.us.bb.gin.ntt.net
                                                              13.1%    84
 41.2  37.8  33.8  53.8   3.9
 9. ae-1.r05.asbnva02.us.bb.gin.ntt.net
                                                               0.0%    84
 36.9  38.0  34.8  61.0   4.1
10. ae-0.a02.asbnva02.us.bb.gin.ntt.net
                                                               1.2%    84
 37.8  39.2  34.4  62.4   4.5
11. ???
12. 4.69.204.209
                                                             92.8%    84
176.9 176.4 173.1 180.1   2.5
13. 4.68.71.134
                                                              45.8%    84
189.5 183.9 172.0 192.0   4.5
14. 69.139.169.174
                                                             41.6%    77
187.8 185.3 171.4 196.3   5.7
15. 68.85.72.146
                                                             40.8%    77
185.6 183.5 171.7 199.1   5.6
16. c-71-60-89-127.hsd1.pa.comcast.net
                                                             48.6%    75
193.7 192.5 174.2 206.5   6.2

Here's Akron to Chicago:

 2. static-acs-24-239-210-1.zoominternet.net
                                                              0.0%    30
 13.6  12.3   7.3  44.0   7.5
 3. ???
 4. ???
 5. ???
 6. ce-0-12-0-3.r07.nycmny01.us.bb.gin.ntt.net
                                                              0.0%    30
 29.6  30.7  27.8  37.1   2.1
 7. ae-2.r25.nycmny01.us.bb.gin.ntt.net
                                                               0.0%    30
 28.0  31.2  27.4  41.3   3.0
 8. ae-9.r22.asbnva02.us.bb.gin.ntt.net
                                                              17.2%    29
 34.8  38.2  33.9  47.3   3.4
 9. ae-1.r05.asbnva02.us.bb.gin.ntt.net
                                                               0.0%    29
 35.4  36.5  33.9  48.5   2.9
10. ae-0.a02.asbnva02.us.bb.gin.ntt.net
                                                              39.3%    29
 51.3  38.5  33.9  55.2   5.9
11. ???
12. ???
13. be-49-ar01.area4.il.chicago.comcast.net
                                                              57.1%    29
180.2 173.7 167.3 183.9   5.3
14. be-123-rur02.homewood.il.chicago.comcast.net
                                                             35.7%    29
180.1 175.2 166.8 185.3   6.1
15. 68.86.119.106
                                                              46.4%    28
164.6 172.7 164.6 182.3   5.4

and here's Akron to Houston:

 2. static-acs-24-239-210-1.zoominternet.net
                                                              0.0%    12
 10.4  15.6   8.1  67.3  16.4
 3. ???
 4. ???
 5. ???
 6. ce-0-12-0-3.r07.nycmny01.us.bb.gin.ntt.net
                                                              0.0%    12
 35.5  34.7  29.4  50.1   5.5
 7. ae-2.r25.nycmny01.us.bb.gin.ntt.net
                                                               0.0%    12
 39.4  33.7  28.0  43.6   5.3
 8. ae-9.r22.asbnva02.us.bb.gin.ntt.net
                                                               8.3%    12
 41.7  40.7  34.1  59.3   7.8
 9. ae-7.r06.asbnva02.us.bb.gin.ntt.net
                                                               0.0%    12
 35.8  39.2  35.8  47.2   3.5
10. ae-1.a02.asbnva02.us.bb.gin.ntt.net
                                                              27.3%    11
 35.3  37.7  35.1  44.6   3.1
11. ???
12. ae-2-17.bear2.Houston1.Level3.net
                                                              90.0%    11
177.7 177.7 177.7 177.7   0.0
13. 4.68.71.110
                                                              45.5%    11
197.7 194.7 192.3 199.1   2.8
14. ae-68-sur03.airport.tx.houston.comcast.net
                                                             40.0%    11
193.8 190.8 184.7 195.8   4.7
15. lag-1-acr02.airport.tx.houston.comcast.net
                                                             30.0%    10
187.9 193.4 187.9 197.9   3.6
16. ???

It looks like it's definitely a NTT/Level3 issue but as far as end-user
facing ISPs it seems like Comcast must run a lot of their traffic that way
since they're the only ones I've seen impacted so far.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/outages-discussion/attachments/20171106/074c87e3/attachment-0001.html>


More information about the Outages-discussion mailing list