I'll take a look. West coast appears to be haunted today. John
On Thu, Feb 19, 2015 at 4:07 PM, Jeremy Chadwick via Outages < [email protected]> wrote: > Something weird is going on with Comcast in Los Angeles: small packets > appear to be getting discarded with a loss rate of ~6-10% while larger > packets (I've tried 1000 and 1200) seem to make it through without any > loss. Things like SSH and IMAP+SSL are impacted consistently > (particularly during key exchange), while HTTP does not appear to be, so > the issue appears to be affecting both TCP and ICMP (have not tested > UDP). > > First sign of this issue, according to my logs, is at 11:51 PT (UTC-8), > and has gradually gotten worse over the past few hours. > > Looks like the issue is with the forward path (Source->Destination > listed below), as the return path only shows loss at the final > destination. (I currently cannot provide a return-path mtr because the > only way I can access my box is through VNC, and I don't like doing > things like screenshots of a VNC window, so you'll just have to trust > me) > > Nothing anomalous shows up when using L3's looking glass to ping things, > and the only Comcast LG I know of is in NYC. > > I most likely won't see Email responses from anyone (directly or to the > list) until this problem is addressed, since my mail is hosted on shown > box and cannot currently be fetched due to the problem. Frustrating. > > Source IP: 69.181.142.213 > Destination IP: 174.136.108.146 > > ICMP 56 bytes: > > > Packets Pings > Host Loss% > Snt Rcv Last Avg Best Wrst > 1. gw.home.lan (192.168.1.1) 0.0% > 185 185 0.2 0.2 0.2 0.3 > 2. 69.181.136.1 0.0% > 185 185 8.9 9.9 7.0 21.1 > 3. te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net (68.86.249.69) > 0.0% 185 185 8.7 9.9 7.9 17.0 > 4. te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net (162.151.78.134 > 0.0% 185 185 10.7 12.9 9.7 20.7 > 5. he-1-5-0-0-cr01.sanjose.ca.ibone.comcast.net (68.86.90.93) > 98.4% 184 3 49496 49006 47906 49615 > 6. he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net (68.86.86.102) > 5.4% 184 174 11.9 14.1 10.9 23.5 > 7. 50.242.148.34 6.5% > 184 172 11.7 13.4 10.4 69.9 > 8. ae-3-80.edge6.LosAngeles1.Level3.net (4.69.144.142) > 66.7% 184 61 44.9 20.6 18.0 44.9 > 9. ae-3-80.edge6.LosAngeles1.Level3.net (4.69.144.142) > 59.0% 184 75 18.7 19.8 18.0 26.0 > 10. ae-27-27.car2.LosAngeles1.Level3.net (4.69.201.18) > 2.2% 184 180 20.8 63.1 18.2 293.3 > 11. GIGLINX-INC.car2.LosAngeles1.Level3.net (4.30.195.86) > 6.0% 184 173 19.2 22.2 19.1 39.3 > 12. mambo.koitsu.org (174.136.108.146) > 6.5% 184 172 18.8 20.6 18.5 36.9 > > Note: Loss shown at above hops #5, #8, and #9 are normal according to > historic data (i.e. ICMP prioritisation is in effect) -- however loss at > hop #6 is new. > > > ICMP 1200 bytes: > > > Packets Pings > Host Loss% > Snt Rcv Last Avg Best Wrst > 1. gw.home.lan (192.168.1.1) 0.0% > 43 43 0.3 0.3 0.2 0.4 > 2. 69.181.136.1 0.0% > 43 43 9.7 10.4 8.6 14.3 > 3. te-0-2-0-5-sur03.santaclara.ca.sfba.comcast.net (68.86.249.69) > 0.0% 42 42 10.0 10.0 8.7 16.0 > 4. te-0-0-0-13-sur03.sanrafael.ca.sfba.comcast.net (162.151.78.134 > 0.0% 42 42 11.7 13.3 10.3 18.9 > 5. ??? > 6. he-2-9-0-0-cr01.losangeles.ca.ibone.comcast.net (68.86.86.102) > 0.0% 42 42 14.4 15.9 12.4 25.1 > 7. 50.242.148.34 0.0% > 42 42 12.7 13.6 11.2 23.1 > 8. ae-3-80.edge6.LosAngeles1.Level3.net (4.69.144.142) > 9.8% 42 37 20.0 20.7 18.8 25.0 > 9. ae-3-80.edge6.LosAngeles1.Level3.net (4.69.144.142) > 0.0% 42 42 19.1 21.1 18.9 29.9 > 10. ae-27-27.car2.LosAngeles1.Level3.net (4.69.201.18) > 0.0% 42 42 64.3 105.7 20.9 412.5 > 11. GIGLINX-INC.car2.LosAngeles1.Level3.net (4.30.195.86) > 0.0% 42 42 20.6 22.5 19.9 31.2 > 12. mambo.koitsu.org (174.136.108.146) > 0.0% 42 42 20.7 22.0 20.1 26.4 > > -- > | Jeremy Chadwick [email protected] | > | UNIX Systems Administrator http://jdc.koitsu.org/ | > | Making life hard for others since 1977. PGP 4BD6C0CB | > > _______________________________________________ > Outages mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/outages >
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