[outages] Level3/TW Telecom issues?

Rafael Possamai rafael at gav.ufsc.br
Fri Aug 28 09:25:52 EDT 2015


August 27th, 2015: the day everyone routed around L3

On Fri, Aug 28, 2015 at 1:27 AM, Ryan Brooks via Outages <
outages at outages.org> wrote:

> All my tickets got closed w/o confirmation.   Good thing they turned down
> the tcp-disruption settings /  "perform adjustments on the links".  It is
> also very disconcerting that ICMP and IPSec seemed to do better during this
> capacity problem; perception is important w/ traffic engineering, but not
> so much with NOC mad-libs.
>
> Simultaneous to the below update, another notice indicated that OSP
> completed splice work which fixed the problem.  So we're double-fixed now.
>
>
> On Aug 28, 2015, at 1:13 AM, Ryan Gelobter <ryan.g at atwgpc.net> wrote:
>
> Tonight..we did nothing and waited for everyone to go to bed.
>
> 08/28/2015 3:08 AM GMT
> Event Conclusion Summary
>
> Start: August 27, 2015 13:20 GMT
> Stop: August 28, 2015 00:00 GMT
>
> Root Cause: A protocol issue impacted IP services in multiple markets.
> Fix Action: Adjustments were made to clear the errors.
>
> Summary:
> The IP NOC began investigating the root cause with Tier III Technical
> Support. It was reported that the issue was causing packet loss for
> customers. Operations Engineering teams were engaged, and Field Services
> were dispatched to a site in Chicago, IL to assist with investigations.
> Troubleshooting identified a protocol issue, and Operations Engineering
> worked with Tier III Technical Support to perform adjustments on the links.
> It was confirmed that the errors cleared. The traffic load was also lowered
> on cards in Chicago to alleviate any further issues. Should any additional
> impact be experienced, please contact the Level 3 Technical Service Center.
> On Aug 27, 2015 8:07 PM, "Ryan Brooks via Outages" <outages at outages.org>
> wrote:
>
>> Yesterday, fiber cut.  Today, "Internet Protocol" problems.  Tonight,
>> capacity management?
>>
>> On Aug 27, 2015, at 8:01 PM, Ryan Gelobter via Outages <
>> outages at outages.org> wrote:
>>
>> *08/27/2015 11:16 PM GMT*
>>
>> Multiple cards have been ordered, and will be installed on equipment in Chicago, IL in an effort to balance the traffic load through the site and alleviate the issue. Field Services are currently en route to the site with the cards, and are expected to arrive shortly.
>>
>>
>> On Thu, Aug 27, 2015 at 5:02 PM, Ryan Gelobter <ryan.g at atwgpc.net> wrote:
>>
>>> Latest update.....
>>> *08/27/2015 9:49 PM GMT*
>>>
>>> Tier III Technical Support and Operations Engineering teams continue investigating the issue identified with the Internet Protocols. Restoration efforts are ongoing; however, there is currently no estimated restoral time.
>>>
>>>
>>>
>>> On Thu, Aug 27, 2015 at 3:14 PM, Ryan Brooks <rbrooks at stack41.com>
>>> wrote:
>>>
>>>> ICMP blazes through at times, but TCP completely falls apart.
>>>>
>>>> On Aug 27, 2015, at 3:13 PM, Ryan Gelobter via Outages <
>>>> outages at outages.org> wrote:
>>>>
>>>>
>>>> *08/27/2015 8:05 PM GMT*Level 3 Tier III and Operations Engineering teams have identified Internet Protocols dropping, affecting customer services.  Restoration efforts are in progress, but an estimated time of restoral is not available at this time.
>>>>
>>>>
>>>> On Thu, Aug 27, 2015 at 3:06 PM, Ryan Gelobter <ryan.g at atwgpc.net>
>>>> wrote:
>>>>
>>>>> If you have access to the Level3 portal you should see ticket #9639047
>>>>> under Network Events now.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> *Event SummaryIP Network Event ~ Multiple Markets08/27/2015 6:36 PM
>>>>> GMT*
>>>>>
>>>>> IP and Transport Tier III, Operations Engineering and Field Services continue collaboratively working the issue.
>>>>>
>>>>>
>>>>> *08/27/2015 4:59 PM GMT*
>>>>>
>>>>> Operations Engineering is engaged and Field Services is on site in Chicago, IL investigating the issue.
>>>>>
>>>>>
>>>>> *08/27/2015 4:38 PM GMT*
>>>>>
>>>>> The engineers are currently migrating traffic in efforts of restoring services while troubleshooting continues. Field Services is being dispatched to a Chicago, IL site to assist.
>>>>>
>>>>>
>>>>> *08/27/2015 4:21 PM GMT*
>>>>>
>>>>> IP services are affected across multiple markets and the root cause is currently under investigation. The IP NOC and IP and Transport Tier III are actively troubleshooting and working to isolate the cause. The engineers have detected peering issues which are resulting in packet loss for customers. Please be advised that updates will be provided at minimum of hourly unless otherwise noted.
>>>>>
>>>>>
>>>>>
>>>>> On Thu, Aug 27, 2015 at 2:59 PM, Eric Henson via Outages <
>>>>> outages at outages.org> wrote:
>>>>>
>>>>>> We had to shut down our Level3 circuit in the DFW area, had issues
>>>>>> from 1406CST until we shut down our circuit.
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: Outages [mailto:outages-bounces at outages.org] On Behalf Of
>>>>>> jungle Boogie via Outages
>>>>>> Sent: Thursday, August 27, 2015 2:56 PM
>>>>>> To: Bobin Joseph
>>>>>> Cc: outages at outages.org
>>>>>> Subject: Re: [outages] Level3/TW Telecom issues?
>>>>>>
>>>>>> On 27 August 2015 at 12:48, Bobin Joseph via Outages <
>>>>>> outages at outages.org> wrote:
>>>>>> > Anybody else having complete outage on Level3? We lost complete
>>>>>> > internet in DFW and SAN
>>>>>> >
>>>>>>
>>>>>> We were not down but significant routing issues in Las Vegas.
>>>>>>
>>>>>> > Thanks,
>>>>>> > Bobin
>>>>>> >
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>>>>>
>>>>>
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