<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Yep. A 100G link had lost its mind. Sounds like all is well now. Thanks for the info!</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">John</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 19, 2015 at 5:41 PM, Jeremy Chadwick <span dir="ltr"><<a href="mailto:jdc@koitsu.org" target="_blank">jdc@koitsu.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Looks resolved as of about 16:23 PT (UTC-8) -- everything appears<br>
reliable now (all my mail just came flooding in ;-) ).<br>
<br>
Looks like there was a link flap or some reconvergence on the forward<br>
path that happened at about 16:21, followed by recovery. (I saw nothing<br>
on the return path). Look about right?<br>
<br>
=== Thu Feb 19 16:21:00 PST 2015 (1424391660)<br>
Start: Thu Feb 19 16:21:00 2015<br>
HOST: icarus.home.lan Loss% Snt Rcv Last Avg Best Wrst<br>
1.|-- gw.home.lan (192.168.1.1) 0.0% 30 30 0.2 0.2 0.2 0.3<br>
2.|-- 69.181.136.1 0.0% 30 30 9.5 8.8 7.8 15.4<br>
3.|-- <a href="http://te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net" target="_blank">te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net</a> (68.86.249.69) 0.0% 30 30 9.4 8.9 8.2 15.7<br>
4.|-- <a href="http://te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net" target="_blank">te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net</a> (162.151.78.134) 0.0% 30 30 11.9 11.8 9.5 13.8<br>
5.|-- ??? 100.0 30 0 0.0 0.0 0.0 0.0<br>
6.|-- <a href="http://he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net" target="_blank">he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net</a> (68.86.86.102) 16.7% 30 25 12.5 13.2 11.2 16.2<br>
7.|-- 50.242.148.34 23.3% 30 23 11.6 13.8 10.9 47.6<br>
8.|-- <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142) 16.7% 30 25 18.7 19.0 18.3 21.7<br>
9.|-- <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142) 50.0% 30 15 18.6 19.7 18.2 26.2<br>
10.|-- <a href="http://ae-27-27.car2.LosAngeles1.Level3.net" target="_blank">ae-27-27.car2.LosAngeles1.Level3.net</a> (4.69.201.18) 16.7% 30 25 370.2 87.7 25.9 370.2<br>
11.|-- <a href="http://GIGLINX-INC.car2.LosAngeles1.Level3.net" target="_blank">GIGLINX-INC.car2.LosAngeles1.Level3.net</a> (4.30.195.86) 10.0% 30 27 133.6 26.8 19.1 133.6<br>
12.|-- <a href="http://mambo.koitsu.org" target="_blank">mambo.koitsu.org</a> (174.136.108.146) 13.3% 30 26 19.1 19.4 18.4 26.9<br>
=== END<br>
<br>
=== Thu Feb 19 16:22:00 PST 2015 (1424391720)<br>
Start: Thu Feb 19 16:22:00 2015<br>
HOST: icarus.home.lan Loss% Snt Rcv Last Avg Best Wrst<br>
1.|-- gw.home.lan (192.168.1.1) 0.0% 30 30 0.2 0.2 0.2 0.3<br>
2.|-- 69.181.136.1 0.0% 30 30 9.1 9.0 8.0 13.6<br>
3.|-- <a href="http://te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net" target="_blank">te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net</a> (68.86.249.69) 0.0% 30 30 9.0 9.2 8.1 15.9<br>
4.|-- <a href="http://te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net" target="_blank">te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net</a> (162.151.78.134) 0.0% 30 30 11.7 12.6 9.8 21.6<br>
5.|-- ??? 100.0 30 0 0.0 0.0 0.0 0.0<br>
=== END<br>
<br>
=== Thu Feb 19 16:23:00 PST 2015 (1424391780)<br>
Start: Thu Feb 19 16:23:00 2015<br>
HOST: icarus.home.lan Loss% Snt Rcv Last Avg Best Wrst<br>
1.|-- gw.home.lan (192.168.1.1) 0.0% 30 30 0.2 0.2 0.2 0.3<br>
2.|-- 69.181.136.1 0.0% 30 30 9.0 9.0 7.7 15.0<br>
3.|-- <a href="http://te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net" target="_blank">te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net</a> (68.86.249.69) 0.0% 30 30 9.2 8.9 8.2 10.1<br>
4.|-- <a href="http://te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net" target="_blank">te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net</a> (162.151.78.134) 0.0% 30 30 12.5 12.4 10.0 19.2<br>
5.|-- ??? 100.0 30 0 0.0 0.0 0.0 0.0<br>
6.|-- <a href="http://he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net" target="_blank">he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net</a> (68.86.86.102) 0.0% 30 30 14.6 14.0 11.1 23.2<br>
7.|-- 50.242.148.34 0.0% 30 30 12.2 11.7 10.7 19.0<br>
8.|-- <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142) 16.7% 30 25 19.5 24.6 18.2 53.5<br>
9.|-- <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142) 46.7% 30 16 19.2 18.8 18.2 19.9<br>
10.|-- <a href="http://ae-27-27.car2.LosAngeles1.Level3.net" target="_blank">ae-27-27.car2.LosAngeles1.Level3.net</a> (4.69.201.18) 0.0% 30 30 76.1 53.7 20.2 109.3<br>
11.|-- <a href="http://GIGLINX-INC.car2.LosAngeles1.Level3.net" target="_blank">GIGLINX-INC.car2.LosAngeles1.Level3.net</a> (4.30.195.86) 0.0% 30 30 22.2 21.4 18.9 32.7<br>
12.|-- <a href="http://mambo.koitsu.org" target="_blank">mambo.koitsu.org</a> (174.136.108.146) 0.0% 30 30 18.6 19.3 18.5 21.5<br>
=== END<br>
<span class="im HOEnZb"><br>
--<br>
| Jeremy Chadwick <a href="mailto:jdc@koitsu.org">jdc@koitsu.org</a> |<br>
| UNIX Systems Administrator <a href="http://jdc.koitsu.org/" target="_blank">http://jdc.koitsu.org/</a> |<br>
| Making life hard for others since 1977. PGP 4BD6C0CB |<br>
<br>
</span><div class="HOEnZb"><div class="h5">On Thu, Feb 19, 2015 at 05:24:08PM -0700, John Neiberger wrote:<br>
> Those of you having issues, can you check to see if they're still occurring?<br>
><br>
> Thanks,<br>
> John<br>
><br>
> On Thu, Feb 19, 2015 at 4:25 PM, Jeremy Chadwick via Outages <<br>
> <a href="mailto:outages@outages.org">outages@outages.org</a>> wrote:<br>
><br>
> > Here's another destination showing the same problem (I can't even load<br>
> > <a href="http://www.dslreports.com/" target="_blank">http://www.dslreports.com/</a> at present -- handshake works, but either<br>
> > client->server GET request gets lost, or payload response gets lost,<br>
> > followed by TCP retrans, eventually RST from the server, rinse lather<br>
> > repeat), with things again looking centralised around LA.<br>
> ><br>
> > Hopefully having multiple test endpoints will come in handy.<br>
> ><br>
> > Source IP: 69.181.142.213<br>
> > Destination IP: 64.91.255.98<br>
> ><br>
> ><br>
> > Packets Pings<br>
> > Host Loss%<br>
> > Snt Rcv Last Avg Best Wrst<br>
> > 1. gw.home.lan (192.168.1.1) 0.0%<br>
> > 171 171 0.2 0.2 0.2 0.4<br>
> > 2. 69.181.136.1 0.0%<br>
> > 171 171 12.7 9.6 7.7 19.2<br>
> > 3. <a href="http://te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net" target="_blank">te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net</a> (68.86.249.69)<br>
> > 0.0% 171 171 9.4 9.2 8.0 17.1<br>
> > 4. <a href="http://te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net" target="_blank">te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net</a> (162.151.78.134<br>
> > 0.0% 171 171 12.1 12.2 9.5 18.4<br>
> > 5. <a href="http://he-1-5-0-0-cr01.sanjose.ca.ibone.comcast.net" target="_blank">he-1-5-0-0-cr01.sanjose.ca.ibone.comcast.net</a> (68.86.90.93)<br>
> > 98.8% 171 2 50456 50095 49735 50456<br>
> > 6. <a href="http://he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net" target="_blank">he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net</a> (68.86.86.102)<br>
> > 2.9% 171 166 14.1 13.5 10.9 22.7<br>
> > 7. <a href="http://he-2-12-0-0-cr01.seattle.wa.ibone.comcast.net" target="_blank">he-2-12-0-0-cr01.seattle.wa.ibone.comcast.net</a> (68.86.86.229)<br>
> > 1.8% 171 168 29.2 30.2 27.4 36.3<br>
> > 8. <a href="http://he-0-15-0-0-cr01.denver.co.ibone.comcast.net" target="_blank">he-0-15-0-0-cr01.denver.co.ibone.comcast.net</a> (68.86.86.213)<br>
> > 9.9% 171 154 50.1 47.6 44.9 53.1<br>
> > 9. <a href="http://he-5-13-0-0-cr01.350ecermak.il.ibone.comcast.net" target="_blank">he-5-13-0-0-cr01.350ecermak.il.ibone.comcast.net</a> (68.86.85.245)<br>
> > 4.1% 171 163 72.9 72.3 68.6 84.7<br>
> > 10. <a href="http://hu-0-10-0-1.pe03.350ecermak.il.ibone.comcast.net" target="_blank">hu-0-10-0-1.pe03.350ecermak.il.ibone.comcast.net</a> (68.86.86.6)<br>
> > 5.3% 170 161 69.8 69.4 68.1 84.7<br>
> > 11. 50.242.150.126 7.1%<br>
> > 170 158 106.0 89.7 67.4 400.5<br>
> > 50.242.150.130<br>
> > 12. <a href="http://lw-dc3-core1-te8-16.rtr.liquidweb.com" target="_blank">lw-dc3-core1-te8-16.rtr.liquidweb.com</a> (209.59.157.244)<br>
> > 9.4% 170 154 75.7 80.9 75.2 242.7<br>
> > 13. <a href="http://lw-dc3-dist15-po5.rtr.liquidweb.com" target="_blank">lw-dc3-dist15-po5.rtr.liquidweb.com</a> (69.167.128.241)<br>
> > 2.4% 170 166 75.0 75.9 74.7 83.6<br>
> > 14. <a href="http://www.dslreports.com" target="_blank">www.dslreports.com</a> (64.91.255.98)<br>
> > 5.3% 170 161 74.2 74.3 73.2 82.5<br>
> ><br>
> > --<br>
> > | Jeremy Chadwick <a href="mailto:jdc@koitsu.org">jdc@koitsu.org</a> |<br>
> > | UNIX Systems Administrator <a href="http://jdc.koitsu.org/" target="_blank">http://jdc.koitsu.org/</a> |<br>
> > | Making life hard for others since 1977. PGP 4BD6C0CB |<br>
> ><br>
> > On Thu, Feb 19, 2015 at 03:07:04PM -0800, Jeremy Chadwick wrote:<br>
> > > Something weird is going on with Comcast in Los Angeles: small packets<br>
> > > appear to be getting discarded with a loss rate of ~6-10% while larger<br>
> > > packets (I've tried 1000 and 1200) seem to make it through without any<br>
> > > loss. Things like SSH and IMAP+SSL are impacted consistently<br>
> > > (particularly during key exchange), while HTTP does not appear to be, so<br>
> > > the issue appears to be affecting both TCP and ICMP (have not tested<br>
> > > UDP).<br>
> > ><br>
> > > First sign of this issue, according to my logs, is at 11:51 PT (UTC-8),<br>
> > > and has gradually gotten worse over the past few hours.<br>
> > ><br>
> > > Looks like the issue is with the forward path (Source->Destination<br>
> > > listed below), as the return path only shows loss at the final<br>
> > > destination. (I currently cannot provide a return-path mtr because the<br>
> > > only way I can access my box is through VNC, and I don't like doing<br>
> > > things like screenshots of a VNC window, so you'll just have to trust<br>
> > > me)<br>
> > ><br>
> > > Nothing anomalous shows up when using L3's looking glass to ping things,<br>
> > > and the only Comcast LG I know of is in NYC.<br>
> > ><br>
> > > I most likely won't see Email responses from anyone (directly or to the<br>
> > > list) until this problem is addressed, since my mail is hosted on shown<br>
> > > box and cannot currently be fetched due to the problem. Frustrating.<br>
> > ><br>
> > > Source IP: 69.181.142.213<br>
> > > Destination IP: 174.136.108.146<br>
> > ><br>
> > > ICMP 56 bytes:<br>
> > ><br>
> > ><br>
> > Packets Pings<br>
> > > Host<br>
> > Loss% Snt Rcv Last Avg Best Wrst<br>
> > > 1. gw.home.lan (192.168.1.1)<br>
> > 0.0% 185 185 0.2 0.2 0.2 0.3<br>
> > > 2. 69.181.136.1<br>
> > 0.0% 185 185 8.9 9.9 7.0 21.1<br>
> > > 3. <a href="http://te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net" target="_blank">te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net</a> (68.86.249.69)<br>
> > 0.0% 185 185 8.7 9.9 7.9 17.0<br>
> > > 4. <a href="http://te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net" target="_blank">te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net</a> (162.151.78.134<br>
> > 0.0% 185 185 10.7 12.9 9.7 20.7<br>
> > > 5. <a href="http://he-1-5-0-0-cr01.sanjose.ca.ibone.comcast.net" target="_blank">he-1-5-0-0-cr01.sanjose.ca.ibone.comcast.net</a> (68.86.90.93)<br>
> > 98.4% 184 3 49496 49006 47906 49615<br>
> > > 6. <a href="http://he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net" target="_blank">he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net</a> (68.86.86.102)<br>
> > 5.4% 184 174 11.9 14.1 10.9 23.5<br>
> > > 7. 50.242.148.34<br>
> > 6.5% 184 172 11.7 13.4 10.4 69.9<br>
> > > 8. <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142)<br>
> > 66.7% 184 61 44.9 20.6 18.0 44.9<br>
> > > 9. <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142)<br>
> > 59.0% 184 75 18.7 19.8 18.0 26.0<br>
> > > 10. <a href="http://ae-27-27.car2.LosAngeles1.Level3.net" target="_blank">ae-27-27.car2.LosAngeles1.Level3.net</a> (4.69.201.18)<br>
> > 2.2% 184 180 20.8 63.1 18.2 293.3<br>
> > > 11. <a href="http://GIGLINX-INC.car2.LosAngeles1.Level3.net" target="_blank">GIGLINX-INC.car2.LosAngeles1.Level3.net</a> (4.30.195.86)<br>
> > 6.0% 184 173 19.2 22.2 19.1 39.3<br>
> > > 12. <a href="http://mambo.koitsu.org" target="_blank">mambo.koitsu.org</a> (174.136.108.146)<br>
> > 6.5% 184 172 18.8 20.6 18.5 36.9<br>
> > ><br>
> > > Note: Loss shown at above hops #5, #8, and #9 are normal according to<br>
> > > historic data (i.e. ICMP prioritisation is in effect) -- however loss at<br>
> > > hop #6 is new.<br>
> > ><br>
> > ><br>
> > > ICMP 1200 bytes:<br>
> > ><br>
> > ><br>
> > Packets Pings<br>
> > > Host<br>
> > Loss% Snt Rcv Last Avg Best Wrst<br>
> > > 1. gw.home.lan (192.168.1.1)<br>
> > 0.0% 43 43 0.3 0.3 0.2 0.4<br>
> > > 2. 69.181.136.1<br>
> > 0.0% 43 43 9.7 10.4 8.6 14.3<br>
> > > 3. <a href="http://te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net" target="_blank">te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net</a> (68.86.249.69)<br>
> > 0.0% 42 42 10.0 10.0 8.7 16.0<br>
> > > 4. <a href="http://te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net" target="_blank">te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net</a> (162.151.78.134<br>
> > 0.0% 42 42 11.7 13.3 10.3 18.9<br>
> > > 5. ???<br>
> > > 6. <a href="http://he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net" target="_blank">he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net</a> (68.86.86.102)<br>
> > 0.0% 42 42 14.4 15.9 12.4 25.1<br>
> > > 7. 50.242.148.34<br>
> > 0.0% 42 42 12.7 13.6 11.2 23.1<br>
> > > 8. <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142)<br>
> > 9.8% 42 37 20.0 20.7 18.8 25.0<br>
> > > 9. <a href="http://ae-3-80.edge6.LosAngeles1.Level3.net" target="_blank">ae-3-80.edge6.LosAngeles1.Level3.net</a> (4.69.144.142)<br>
> > 0.0% 42 42 19.1 21.1 18.9 29.9<br>
> > > 10. <a href="http://ae-27-27.car2.LosAngeles1.Level3.net" target="_blank">ae-27-27.car2.LosAngeles1.Level3.net</a> (4.69.201.18)<br>
> > 0.0% 42 42 64.3 105.7 20.9 412.5<br>
> > > 11. <a href="http://GIGLINX-INC.car2.LosAngeles1.Level3.net" target="_blank">GIGLINX-INC.car2.LosAngeles1.Level3.net</a> (4.30.195.86)<br>
> > 0.0% 42 42 20.6 22.5 19.9 31.2<br>
> > > 12. <a href="http://mambo.koitsu.org" target="_blank">mambo.koitsu.org</a> (174.136.108.146)<br>
> > 0.0% 42 42 20.7 22.0 20.1 26.4<br>
> > ><br>
> > > --<br>
> > > | Jeremy Chadwick <a href="mailto:jdc@koitsu.org">jdc@koitsu.org</a> |<br>
> > > | UNIX Systems Administrator <a href="http://jdc.koitsu.org/" target="_blank">http://jdc.koitsu.org/</a> |<br>
> > > | Making life hard for others since 1977. PGP 4BD6C0CB |<br>
> > ><br>
> > _______________________________________________<br>
> > Outages mailing list<br>
> > <a href="mailto:Outages@outages.org">Outages@outages.org</a><br>
> > <a href="https://puck.nether.net/mailman/listinfo/outages" target="_blank">https://puck.nether.net/mailman/listinfo/outages</a><br>
> ><br>
</div></div></blockquote></div><br></div>