[Outages-discussion] Comcast IP NOC contact or availability?

[Jeremy Chadwick]

Sort of a strange question to ask, but does anyone happen to have
contacts within Comcast, specifically for IP networking issues within
their backbone used by residential customers?

I have an open discussion with one of their customer support reps over
on BBR/DSLR, but he hasn't looked at the issue in literally days now.
He's mainly cable support, and this is more the IP side of things.

There's a chronic problem that has been plaguing the Bay Area for about
1-2 weeks now which looks like network saturation.  It happens almost
like clockwork (usually starting at 21:00 PDT) and lasts numerous hours.
Tonight, however, it began at 19:15 PDT, which is a bit of a surprise.

Traceroutes indicate increased latency, but I assure you all forms of
traffic (not just ICMP) are affected; SSH sessions are slow, Remote
Desktop feels laggy as hell, etc..



Egress traffic (Comcast->Internet):

=== Mon Jun  6 20:19:00 PDT 2011  (1307416740)
HOST: icarus.home.lan             Loss%   Snt   Rcv  Last   Avg  Best  Wrst
  1.|-- 192.168.1.1                0.0%    40    40   0.4   0.5   0.3   0.9
  2.|-- 67.180.84.1                0.0%    40    40  25.3  25.6  10.3  60.0
  3.|-- 68.85.191.253              0.0%    40    40   8.1   9.7   7.4  24.6
  4.|-- 68.86.143.98               0.0%    40    40  11.9  12.5  10.3  32.0
  5.|-- 68.85.155.14               0.0%    40    40  11.8  12.6  10.3  27.5
  6.|-- 68.86.91.229               7.5%    40    37  11.6  15.6  11.2  43.2
  7.|-- 4.71.118.45                0.0%    40    40 141.8 148.8 126.1 191.5
  8.|-- 4.69.152.67                0.0%    40    40  13.3  28.1  12.0 196.5
  9.|-- 4.53.16.18                 0.0%    40    40 146.9 145.7 128.3 167.3
 10.|-- 69.163.65.39               0.0%    40    40  15.2  54.3  13.8  87.5
 11.|-- 72.20.98.124               2.5%    40    39 143.3 144.1 123.8 174.3
=== END

$ host 68.86.91.229
229.91.86.68.in-addr.arpa domain name pointer pos-1-8-0-0-cr01.sanjose.ca.ibone.comcast.net.
$ host 4.71.118.45
45.118.71.4.in-addr.arpa domain name pointer xe-10-1-0.edge1.SanJose1.Level3.net.


Ingress traffic (Internet->Comcast):

=== Mon Jun  6 20:21:00 PDT 2011  (1307416860)
HOST: isis.parodius.com           Loss%   Snt   Rcv  Last   Avg  Best  Wrst
  1.|-- 72.20.98.65                0.0%    40    40   0.3   0.3   0.2   0.6
  2.|-- 69.163.64.44               0.0%    40    40   0.2   0.3   0.2   0.5
  3.|-- 38.112.2.73                0.0%    40    40   3.1   2.9   1.6   5.6
  4.|-- 38.20.55.217               0.0%    40    40   1.5   1.3   1.1   1.6
  5.|-- 154.54.2.29                0.0%    40    40   1.2   1.6   1.1  10.9
  6.|-- 154.54.2.53                0.0%    40    40   2.5   2.4   2.3   2.8
  7.|-- 154.54.2.166               0.0%    40    40   2.3   2.4   2.3   2.6
  8.|-- 154.54.11.106              0.0%    40    40   3.0   2.9   2.5   3.6
  9.|-- 68.86.90.94                0.0%    40    40   4.6   4.9   3.6   7.3
 10.|-- 68.86.143.93               0.0%    40    40 142.5 137.7 127.1 151.7
 11.|-- 68.85.191.250              0.0%    40    40 145.5 151.7 140.3 167.7
 12.|-- 67.180.84.87               2.5%    40    39 185.0 148.1 136.1 185.0
=== END

$ host 68.86.143.93
93.143.86.68.in-addr.arpa domain name pointer te-9-8-ur03.santaclara.ca.sfba.comcast.net.
$ host 68.86.90.94
94.90.86.68.in-addr.arpa domain name pointer pos-0-12-0-0-ar01.sfsutro.ca.sfba.comcast.net.


If anyone has any contact points, or knows someone who is "in the know"
that I might be able to talk to about/work with on this, I'd greatly
appreciate it.

-- 
| Jeremy Chadwick                                   jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                   Mountain View, CA, US |
| Making life hard for others since 1977.               PGP 4BD6C0CB |