For the past 3 days (roughly when the issue began), I've been seeing signs of what may be network saturation between GTT/MZIMA and Comcast in the Los Angeles area, or alternately an overutilised router. The issue starts approximately around 18:00 PT and continues all the way until roughly midnight. Here's an example of what's happening tonight/right now: Source IP: 67.180.84.87 (Comcast; Mountain View, CA) Dest IP: 206.125.172.42 (ARP Networks with GTT/MZIMA peering; Sylmar, CA) Host Loss% Snt Rcv Last Avg Best Wrst 1. gw.home.lan 0.0% 509 509 0.3 0.2 0.2 2.1 2. c-67-180-84-1.hsd1.ca.comcast.net 0.0% 508 508 27.5 25.8 9.1 587.6 3. te-0-0-0-12-ur05.santaclara.ca.sfba.comcast 0.0% 508 508 10.0 10.9 8.1 46.6 4. te-1-1-0-0-ar01.sfsutro.ca.sfba.comcast.net 0.0% 508 508 17.6 18.2 9.9 49.8 5. he-1-5-0-0-cr01.sanjose.ca.ibone.comcast.ne 0.0% 508 508 17.6 18.6 11.3 36.8 6. pos-2-9-0-0-cr01.losangeles.ca.ibone.comcas 0.0% 508 508 21.1 23.3 18.9 57.9 7. 75.149.231.238 4.1% 508 487 22.7 29.3 21.1 56.9 8. ge0-arpnet.cust.lax07.mzima.net 0.0% 508 508 22.9 29.0 20.1 234.9 9. omake.koitsu.org 3.3% 508 491 25.9 25.1 21.2 56.8 Source IP: 206.125.172.42 (ARP Networks with GTT/MZIMA peering; Sylmar, CA) Dest IP: 67.180.84.87 (Comcast; Mountain View, CA) Host Loss% Snt Rcv Last Avg Best Wrst 1. 206.125.172.41 0.0% 534 534 0.9 6.7 0.8 197.0 2. ge0-15.as01.lax07.mzima.net 0.0% 533 533 13.2 5.2 0.5 19.1 3. be-10-201-cr01.losangeles.ca.ibone.comcast. 3.9% 533 512 8.1 8.1 3.9 65.8 4. pos-2-9-0-0-cr01.sanjose.ca.ibone.comcast.n 3.4% 533 515 15.6 13.7 10.8 25.8 5. he-0-6-0-0-ar01.sfsutro.ca.sfba.comcast.net 5.3% 533 505 17.5 18.7 12.2 25.4 6. te-0-6-0-0-ur05.santaclara.ca.sfba.comcast. 5.3% 533 505 14.8 14.4 13.1 15.7 7. te-18-10-cdn31.santaclara.ca.sfba.comcast.n 4.5% 533 509 27.9 28.6 15.1 127.9 8. c-67-180-84-87.hsd1.ca.comcast.net 6.2% 533 500 25.2 24.1 20.9 50.3 I keep 60 days worth of periodic mtrs, run for 40 seconds at 60 second intervals, so if more historic data is needed, let me know. Verification and/or any insights would be appreciated. -- | Jeremy Chadwick jdc@koitsu.org | | UNIX Systems Administrator http://jdc.koitsu.org/ | | Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |