Level 3 had a routing loop problem in San francisco on 8/8-8/9. We had issues with Comcast customers being able to access some websites. Did anyone see anything similar ?
I saw up to 40% packet-loss on the Comcast network between Sacramento/Portland, for intermittent periods of time between 9AM-3PM PST. It's been stable the past few hours. This was seen both via Level3 and Sprint from my perspective. From: outages-bounces@outages.org [mailto:outages-bounces@outages.org] On Behalf Of Monika Bajwa Sent: Monday, August 17, 2009 15:42 To: outages@outages.org Subject: [outages] Level 3 routing issue Level 3 had a routing loop problem in San francisco on 8/8-8/9. We had issues with Comcast customers being able to access some websites. Did anyone see anything similar ?
Our texas NMS picked up ingress routing trouble to Level(3) prefixes around 3:00AM PST. Traffic to SFO and SJC from Dallas was headed through London. Level(3) seemed to correct this after about 45 minutes. On Mon, Aug 17, 2009 at 3:41 PM, Monika Bajwa <mbajwa75@yahoo.com> wrote:
Level 3 had a routing loop problem in San francisco on 8/8-8/9. We had issues with Comcast customers being able to access some websites. Did anyone see anything similar ?
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On Tue, Aug 18, 2009 at 8:41 AM, Monika Bajwa <mbajwa75@yahoo.com> wrote:
Level 3 had a routing loop problem in San francisco on 8/8-8/9. We had issues with Comcast customers being able to access some websites. Did anyone see anything similar ?
Yes. Started at 3:36am Pacific, and ended at 4:12am. Looks like level 3 were advertising their US routes out of London, with latency from non-L3 in San Francisco to multiple Level 3 around 200ms and near 100% packet loss. 2 10gigabitethernet1-1.core1.sjc2.he.net (72.52.81.178) 10.484 ms 13.600 ms 4.616 ms 3 10gigabitethernet1-3.core1.nyc4.he.net (72.52.92.26) 90.816 ms 86.060 ms 79.697 ms 4 10gigabitethernet1-2.core1.lon1.he.net (72.52.92.78) 160.023 ms 149.021 ms 157.903 ms 5 * * * 6 * * * 7 * * * Scott.
participants (4)
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Andrew Schwabecher -
Darryl Dunkin -
Monika Bajwa -
Scott Howard