Weekly internet health check, US and worldwide

ThousandEyes, which tracks internet and cloud traffic, provides Network World with weekly updates on the performance of three categories of service provider: ISP, cloud provider, UCaaS.

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ThousandEyes

The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Updated Jan. 30

Global outages across all three categories last week increased from 245 to 373, up 52% over the week prior. In the US, they jumped from 57 to 102, up 79%.

Globally, ISP outages increased from 187 to 278, up 49%, and in the us they increased from 42 to 81, up 93%. 

Globally, cloud-provider network outages increased from six to 10 outages, while in the US decreased from three to two.

Globally, collaboration-app network outages increased from one to four, and in the US they remained the same at one.

There were two significant outages.

On January 25, Microsoft experienced a significant disruption affecting connectivity to many of its services, including Microsoft Teams, Outlook, and SharePoint. First observed around 2:05 a.m. EST, the disruption appeared to impact connectivity for users globally. Around 3:15 a.m. EST, Microsoft announced a potential issue within its network configuration. Around 4:26 a.m. EST, Microsoft announced it had rolled back the network configuration change and was monitoring the services as they recovered. The bulk of the incident lasted approximately 90 minutes, although residual connectivity issues could be seen into the following day. A more detailed analysis of the outage can be found here. Click here for an interactive view.

On January 25, Cogent Communications experienced an outage affecting downstream providers as well as Cogent customers in the US, UK, and South Africa. The outage, lasting an hour and 18 minutes, was first observed around 6:40 p.m. EST and appeared centered on Cogent nodes located in New York, New York. The last 55 minutes of the outage saw a number of the New York nodes appearing to clear and coincided with a reduction in the number of affected downstream partners, customers, and regions. The outage was cleared around 8 p.m. EST. Click here for an interactive view.

Updated Jan. 23

Global outages across all three categories last week decreased from 252 to 245, down 3% from the week prior. In the US they decreased from 68 to 57, down16%.

Globally, ISP outages decreased from 189 to 187, down less than1%, but in the US they decreased from 53 to 42, down 21%.

Globally, cloud-provider outages remained the same at six, but in the US they increased from two to three.

Globally, collaboration-app network outages dropped from 12 to one and decreased from three to one in the US.

There were two notable outages:

On January 18, Time Warner Cable experienced a disruption affecting customers and partners across the US that came in two waves over the course of an hour and 10 minutes. First observed at around 1:40 p.m. EST, the first part of the outage lasted four minutes and appeared centered on Time Warner nodes in Chicago, Illinois. Fifty-five minutes after appearing to clear, the Chicago nodes again exhibited outage conditions for nine more minutes before being cleared around 2:50 p.m. EST. Click here for an interactive view.

On January 17, Qwest Communications experienced an outage affecting downstream partners and customers across the US. The 20-minute outage was first observed around 8:25 a.m. EST and appeared centered on nodes in Atlanta, Georgia. The outage was cleared around 8:50 AM EST. Click here for an interactive view.

Updated Jan 16

Global outages across all three categories last week increased from 217 to 252, up 16%, compared to the week prior. In the US they increased from 57 to 68, up 19%.

Globally, ISP outages increased from 166 to 189, up 14%, and in the US they increased from 48 to 53, up 10%. 

Globally, cloud-provider network outages increased from four to six, and in the US from one to two.

Globally, collaboration-app network outages increased from five to 12, and in the US from zero to five.

There were three notable outages:

On January 10, Cogent Communications, experienced an outage affecting multiple downstream providers and Cogent customers in countries, including the US, Singapore, Germany, and Canada. The outage, lasting a total of 43 minutes, was first observed around 1:05 a.m. EST, initially centered on Cogent nodes in Seattle, Washington. Five minutes later, the Seattle nodes appeared to clear, and nodes in Oakland, California exhibited outage conditions. Fourteen minutes after first being observed, the Oakland nodes appeared to clear. Forty minutes after that, those nodes again exhibited outage conditions. Around 2:30 a.m. EST, about an hour and 15 minutes after appearing to clear, Seattle nodes again exhibited outage conditions. The outage was cleared around 2:35 a.m. EST. Click here for an interactive view.

On January 10, Hurricane Electric experienced an outage affecting customers and downstream partners across the US, the Netherlands, Germany, Belgium, the UK, Ireland, Australia, Canada, Sweden, France, and Brazil. The 17-minute outage was first observed around 5:20 a.m. EST, apparently centered Hurricane Electric nodes in New York, New York. Five minutes later the outage included nodes in San Jose, California. Twenty minutes after first being observed, nodes exhibiting outage conditions expanded to include nodes in Los Angeles and  San Jose, California. The outage was cleared around 5:40 AM EST. Click here for an interactive view.

On January 13, Spotify experienced an outage that prevented some users globally from streaming songs or using the service. First observed around 7:40 p.m. EST, the disruption lasted around an hour and 55 minutes, with the major period of the disruption lasting about an hour and 11 minutes. During the outage, Spotify service was contactable, with a number of requests either timing out or returning “service unreachable” or “unauthorized” messages, which is indicative of backend system issues. The outage was cleared around 9:35 p.m. EST when. Around 11:16 PM EST Spotify announced that all services had been restored. Click here for an interactive view.

Updated Jan. 9

Global outages across all three categories last week increased from 120 to 217, up 81% compared to the week prior. In the US, outages increased from 31 to 57, up 84%.

Globally, ISP outages increased, from 76 to 166, up 118%, and in the US they increased from 18 to 48, up 167%. 

Globally, cloud-provider network outages dropped from eight to four, and in the US they decreased from five to one.

Globally, collaboration-app network outages increased from four to five, and in the US they dropped from one to zero.

There were two notable outages:

On January 4, Time Warner Cable experienced a series of outages over a period of two hours and 15 minutes affecting multiple downstream providers and Time Warner Cable customers in the US and Canada. An outage was first observed around 1:50 a.m. EST and appeared to center on Time Warner Cable nodes in Dallas, Texas. The ensuing series of outages lasted a total of eight minutes and were cleared at around 4:05 a.m. EST. Click here for an interactive view.

On January 6, Qwest Communications experienced an outage affecting downstream partners and customers across the US. The 16-minute outage was first observed around 12:25 a.m. EST and appeared centered on Qwest nodes in Atlanta, Georgia. It was cleared around 12:45 a.m. EST. Click here for an interactive view.

Updated Updated Dec. 12

Global outages across all three categories last week increased from 282 to 347, up 23%. In the US, they increased from 78 to 90, up 15%.

Globally, ISP outages increased from 210 to 281, up 34%, and in the US they increased from 61 to 76, up 25%. 

Globally, cloud-provider network outages dropped from eight to four, and in the US remained the same at two.

Globally, collaboration-app network outages jumped from one to seven, and in the US dropped from one to zero.

Two notable outages:

About 2:30 p.m. EST on December 5, AWS’s Ohio-based us-east-2 region experienced a connectivity issue that appeared to affect some customer internet connectivity to and from the region, characterized by significant packet loss between it and global locations. The loss was seen only between end-users connecting via ISPs and didn’t appear to affect connectivity between instances within the region or between regions. The packet loss continued for more than an hour before resolving around 3:50 p.m. EST. Click here for an interactive view.

On December 7, NTT America experienced an outage affecting customers and downstream partners across the US, the Netherlands, Belgium, the Republic of Korea, and Japan. The 13-minute outage was first observed around 12:15 a.m. EST and appeared to center on NTT nodes in Newark, New Jersey, and Ashburn, Virginia. Ten minutes after being observed, the Ashburn nodes appeared to clear. The outage was cleared around 12:30 a.m. EST. Click here for an interactive view.

Updated Dec. 5

Global outages across all three categories last week increased from 222 to 282, up 27%. In the US, outages increased from 48 to 78, up 63%.

Global ISP outages increased from 173 to 210, up 21%, and in the US increased from 32 to 61, up 90%. 

Global cloud-provider network outages jumped from four to eight, while in the US they remained at two.

Global collaboration-app network outages dropped from six to one, and in the U.S., from five to one.

Two notable outages:

On November 29, TATA Communications (America) Inc., experienced an outage affecting many of its downstream partners and customers including in the US, Canada, the UK, France, the Netherlands, Chile, Peru, Colombia, Saudi Arabia, Argentina, India, Germany, Hong Kong, and Singapore. The 33-minute outage was first observed around 9:20 a.m. EST, and apparently centered on TATA nodes in Newark, New Jersey. Ten minutes later the outage appeared to include nodes in New York, New York; London, England; Marseille, France; and Pune and Bangalore, India. This appeared to coincide with the peak in the number of regions, downstream partners, and customers affected. Around five minutes after the peak, just nodes in Newark, London, and Marseille exhibited outage conditions. The outage was cleared around 9:55 a.m. EST. Click here for an interactive view.

On December 1, Microsoft experienced an issue affecting user access to some Microsoft services, including Office 365, predominantly in the APJC region. First observed around 7:50 p.m. EST and lasting approximately an hour and 18 minutes, the outage appeared to initiate in Microsoft’s Japan infrastructure before affecting other Microsoft servers in the region. Network connectivity to the service did not appear to experience any significant issues throughout the outage. The outage was cleared around 9:10 p.m. EST. Click here for an interactive view.

Updated Nov. 28

Global outages across all three categories last week decreased from 331 to 222, down 33% compared to the week prior. In the US, they dropped from 121 to 48, down 60%.

Globally, ISP outages decreased from 246 to 173, down 30%. In the US they dropped from 85 to 32, down 62%. 

Globally, cloud-provider network outages decreased from five to four and in the US from three to two.

Globally, collaboration-app network outages decreased from nine to six outages, while in the US they decreased from six to five.

Two outages of note:

On November 23, Astute Hosting experienced an outage affecting multiple downstream providers and customers in the US, Australia, Singapore, Canada, and the UK. The 19-minute outage was first observed around 4:40 a.m. EST and appeared to center on Astute Holding nodes in Seattle, Washington. Fifteen minutes later, some of the nodes appeared to recover. The outage was cleared around 5:00 a.m. EST. Click here for an interactive view.

On November 21, Embratel experienced a series of outages over a period of an hour and 35 minutes that affected downstream providers and customers in the US and Canada. The 10-minute outage was first observed around 10:30 p.m. EST centered on Embratel nodes in Atlanta, Georgia. An hour and 30 minutes later, nodes located in Sao Paulo, Brazil, also exhibited outage conditions. The outage was cleared around 12:05 a.m. EST. Click here for an interactive view.

Updated Nov. 21

Global outages across all three categories last week decreased from 352 to 331, down 6% from the week prior. In the US, they decreased from 124 to 121, down 2%.

Globally ISP outages decreased, from 265 to 246, down 7%, and in the US, they dropped from 93 to 85, down 9%. 

Globally, cloud provider outages dropped from 14 to five, while in the US they dropped from six to three.

Globally, collaboration-app network outages remained the at nine and increased in the US from five to six.

Two notable outages:

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