Cisco ThousandEyes
@thousandeyes
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Beginning at approximately 16:00 UTC on May 16, ThousandEyes began observing DNS failures impacting some customers attempting to reach the Salesforce service. The issues appear to be intermittently impacting affected customers. The event is ongoing.
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ThousandEyes tests can confirm that at 15:40 UTC on October 4, the Facebook application became unreachable due to DNS failure. Facebook’s authoritative DNS nameservers became unreachable at that time. The issue is still ongoing as of 17:02 UTC.
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BREAKING: Potential hijack underway. ThousandEyes detected intermittent availability issues to Google services from some locations. Traffic to certain Google destinations appears to be routed through an ISP in Russia & black-holed at a China Telecom gateway router.
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So this happened today... 🤗 🙌 Cisco Completes Acquisition of ThousandEyes 🙌🤗 A big thank you to our employees, customers, partners, and former board and investors. We are truly thrilled and can't wait to start the next chapter as a part of
@Cisco
!
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@JimEckmage
@slpng_giants_ca
Thank you for bringing this to our attention. We've taken immediate steps to block our ads from appearing on this site as it does not align with our corporate values.
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Very excited to share the news that
@Cisco
has announced its intent to acquire
@ThousandEyes
! Read the official news here:
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At around 7:10 AM UTC Microsoft Office365 started experiencing service related issues. At the same time, ThousandEyes observed BGP withdrawals and a significant number of route changes which resulted in a high amount of packet loss, ultimately affecting various services. 🧵
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Facebook made BGP withdrawals near the time of the incident, however, 2 prefixes covering two of their 4 DNS nameservers (a and b) are still being advertised across the Internet. They are reachable on the Internet but traffic is dropping at Facebook’s network edge.
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#CiscoLive
2022 is happening now and the line to the ThousandEyes booth is already long! Stop by to grab a t-shirt and chat with the team about the latest in seeing cloud and Internet like you own it.
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Starting ~6AM ET on 8/30, ThousandEyes detected a large-scale outage on CenturyLink's Level 3 network. Level 3 is used as a transit provider for many app providers, so it had a significant cascading impact on global connectivity to thousands of services. The issue is now resolved
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Today,
@Cisco
has acquired
@CodeBGP
, and we’re thrilled to welcome the team to ThousandEyes! The addition will deepen existing BGP visibility to assure digital experiences across the Internet. More from Head of Product
@joevaccaro
:
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On March 5 at ~15:00 UTC (7AM PST), Meta services, including Facebook, Instagram, experienced a disruption preventing users from accessing those apps. ThousandEyes can confirm that Meta’s web servers remain reachable, with network paths clear and web servers responding to users.
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The 2 DNS nameservers (a and b) are reachable because covering prefix 129.134.0.0/17 is still being advertised, but this advertisement may not have been designed to support the nameserver service.
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The 3 specific prefixes covering a and b nameservers before the incident were 129.134.30.0/23, 129.134.30.0/24, 129.134.31.0/24. The specific routes covering all 4 nameservers (a-d) were withdrawn from the Internet at approximately 15:39 UTC.
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The story behind today's news from our co-founder and CEO,
@mohitlad
👉ThousandEyes + Cisco = A Thousand Times ThousandEyes
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We've compiled all of these updates into a blog (including some additional graphics), which we'll be updating with our full analysis as soon as it's available. Check back here:
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An AWS incident impacting us-west-1 that started at approximately ~7:15am PT affected the reachability of multiple applications like Okta, Workday and Slack. AWS is reporting the issue is now being remediated.
#AWSdown
#AWSoutage
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In this path visualization view, we see all traffic dropping at the edge of Google's network.
#googledown
#gcpdown
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⚡️News!⚡️Announcing ThousandEyes WAN Insights, a pivotal step toward delivering on the
@Cisco
Predictive Networks vision >>
#CiscoLive
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ThousandEyes can confirm that Microsoft Teams started to become unavailable to global users at appropriately 1:15 AM UTC, July 21 (6:15 PM PDT, July 20). The incident is still ongoing.
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From ~8:38am PT - 9:45am PT, Akamai’s Edgekey DNS service—a critical dependency to direct users to its CDN edge—suffered an outage that prevented users around the globe from reaching its customers’ sites.
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A significant portion of Cloudflare’s DNS services went down for ~20 min causing major service disruptions. The services include its public resolver + its managed DNS service, which powers many major websites. It also impacted DNS Roots E & F, both supported by
#Cloudflare
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On July 14 at 12:10 UTC, Twitter experienced a service disruption that prevented many users from accessing its app. While the app appears reachable from a network standpoint, users are receiving 503 service unavailable errors, indicating that the issue is internal to Twitter.
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Beginning shortly after 19:05 UTC, ThousandEyes observed global users unable to reach Sharepoint sites due to an erroneous change in SSL certificate that prevented the establishment of a secure connection to the service.
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An Amazon Web Services outage started on Dec 7, 2021 at approximately 15:40 UTC and is ongoing, impacting various regions across the US and parts of Europe. Check out the live Internet outage map:
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[update] ThousandEyes looks at issues from the user’s vantage point. When investigating Facebook’s issues today, we’re not seeing any BGP changes that are affecting connectivity, packet loss or latency.
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ThousandEyes can confirm that the WhatsApp service disruptions reported today were not due to network issues connecting to Meta’s frontend web servers. Network paths to WhatsApp services appeared to be clear throughout the incident, indicating the issue was on the app backend.
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On Feb 7, 2023, starting at around 03:55 UTC, Microsoft customers in various regions across the globe including North America, Europe, and Asia began experiencing issues accessing Microsoft Outlook service. 🧵
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New blog on how yesterday's Akamai Edge DNS outage unfolded, why services experienced the same outage differently, and three lessons you can take away from this incident.
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Thrilled to share we've passed the $100 Million milestone. We couldn't be more grateful to our customers and employees. Thank you.
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ThousandEyes tests show no Internet or external network issues from users to Twitter’s data centers. We don’t see any evidence of a volumetric DDoS attack. Rather, like the brief Reddit service disruption this morning, the issue appeared to be server-side (HTTP 500 errors).
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Introducing our biggest innovation yet: PVwF
"Because Networks Have Feelings Too."
#AI
#ML
#Deeplearning
#Networks
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Around 5:50 AM ET on June 8, Fastly—a major CDN provider—experienced a global outage that impacted users attempting to reach the sites and applications of its many customers. Lasting ~1 hour, users received server errors or experienced site loading issues for impacted sites.
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At ~ 20:45 UTC (12:45 PM PST), ThousandEyes detected a service disruption for global users of LinkedIn. The disruption is manifesting as service unavailable error messages, likely indicating a backend application issue.
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Facebook’s DNS service appeared to be fully restored by approximately 21:30 UTC and is now reachable for most users.
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Cisco ThousandEyes gets Code BGP’s real-time detection of BGP hijacking, route leaks and other BGP performance and security issues -
@Mcooney59
on today's news in
@NetworkWorld
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Starting ~19:05 UTC, ThousandEyes detected an issue that impacted global users from accessing some services hosted in the AWS us-east-1 region. During the incident, server timeouts and HTTP servers returning 5XX errors were observed. The event was resolved around 20:10 UTC.
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ThousandEyes detected an Azure Active Directory (AD) outage lasting ~1.5 hours from ~00:50 UTC - 2:25 UTC, which may have impacted users around the globe from signing in to Microsoft services like O365.
#AzureAD
#AzureADOutage
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Here's a snapshot of partial
#UltraDNS
outage right now
http://t.co/bYWVnMuZ2i.
See post from last year's outage
http://t.co/aXFdeDtIGe.
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#WebexOne
News! ThousandEyes &
@Cisco
@Webex
Meetings partner to deliver the best collab experience possible in a
#HybridWork
world. With new ThousandEyes Webex Agents, IT can now see and manage the impact the Internet can have on user experience >>
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[Blog + video] See the Comcast outage as seen in the ThousandEyes platform:
#comcastdown
#comcastoutage
#BGP
#network
#monitoring
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We're offering free use of our end user experience monitoring agents to IT teams that need to support remote workers at unprecedented scale due to precautions several businesses are taking in response to
#COVID19
. Details here:
#coronavirus
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Introducing InnoScents – next-gen outage mitigation that just makes scents.
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[NEW] Analysis of the GCP outage is now up on the blog. On June 2, GCP experienced a multi-region outage in the U.S. that had far-reaching, global impacts. Here's what we know:
#gcpdown
#googleoutage
#youtubedown
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ThousandEyes is both Online & Onsite at
#CiscoLiveAPJC
this week! Innovation Talks, Demos, Workshops, and more - grab the Broadcast URL and Agenda here:
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[NEW] Understand the overall health of the global Internet at-a-glance. Go to 24/7 to see ongoing and recent Internet outages on the new Global Internet Outages Map, powered by ThousandEyes Internet Insights.
#WFH
#Remoteworkers
#Coronavirus
#COVID19
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Starting at ~7am ET, a major internet disruption occurred in what appears to be a significant BGP route leak event affecting a variety of prefixes from multiple providers, including Cloudflare & AWS. Sites served through the Cloudflare CDN were impacted for ~2 hours.
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See the BGP data of GitHub withdrawing routes from ISPs Telia, Level3 and NTT, and peering with DDoS mitigation provider, Prolexic.
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On January 26, just before 16:00 UTC (8AM PT), ThousandEyes observed Microsoft Teams service failures that impacted its usability for users around the globe.
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Starting at ~07:15 UTC, ThousandEyes detected an outage affecting X (formerly Twitter) that appeared to prevent some users from interacting with the service. During this time, requests to the application appeared to be timing out, indicating an issue with the application backend.
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Today starting at 9:25 AM PST Facebook users around the globe have had issues reaching their services. Our tests shows this is very likely an app-layer issue, as we see 500 Internal Server Errors being reported from various locations around the globe.
#FacebookDown
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At approximately 4:20 UTC on June 17 (9:20pm PST, June 16), Akamai’s DDoS mitigation service, Prolexic, suffered a service disruption that led to 100% traffic loss for users around the world attempting to reach banking, airline, and other major sites.
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News!
@Cisco
extends the power of
#ThousandEyes
Internet and Cloud Intelligence with new integrations into its Cisco SD-WAN edge routers and switches for data centers for optimized digital experience
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All green from our monitors to
@GCPcloud
, showing that the outage appears to have resolved
#googledown
#gcpdown
#youtubedown
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ThousandEyes now integrates with
@Cisco
Catalyst 9300/9400 switches, bringing Internet and Cloud intelligence to tens of thousands of organizations >> here’s a step-by-step guide to get started!
#CiscoLive
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Earlier today, ThousandEyes observed some users around the globe receiving HTTP 500 server errors and receive errors when trying to access applications such as Spotify and Wikipedia.
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Today,
@Cisco
announced its intent to acquire
@samknows
, deepening last-mile visibility and further expanding
#ThousandEyes
’ leading view of global Internet health. More from Co-founder and Cisco SVP
@mohitlad
:
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ThousandEyes Ukraine Internet Analysis >>
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🙌🙌🙌🙌
IT war-rooms waste time. Finger-pointing gets you nowhere. It’s time to say goodbye to silos and take back control of the digital experience with
@AppDynamics
and
@thousandeyes
. Learn more:
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Now generally available: native ThousandEyes integration on Cisco Meraki MX! Quickly activate ThousandEyes at scale across MX devices for in-depth visibility and insights. Here's how to get started:
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A message from our CEO
@mohitlad
to all ThousandEyes employees. We support the Black community, condemn the racist, brutal & unjust actions being taken against them and are committed to making meaningful changes that will drive lasting change within our own org.
#BlackLivesMatter
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Update on global and U.S.-centric network outage trends:
- Both U.S. and global outages trended downwards in the final weeks of July.
- Proportionally, U.S. outages accounted for more than 40% of total outages, continuing a pattern seen since April.
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These views show 249 of our global vantage points in 170 cities around the world with 100% packet loss trying to reach a service hosted in GCP USwest.
#gcpdown
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Starting at approximately 16:02 UTC, ThousandEyes observed HTTP 500 server unavailable errors and high page load times for global users trying to reach
#Slack
.
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[New!] Check out Internet Insights: App Outages - first live view of business-critical SaaS apps to help IT optimize
#HybridWork
experiences, no matter where workers are:
#CiscoPS21
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"ThousandEyes didn't have any VCs, but it had something better."
@businessinsider
on our early days.
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Happiest of Holidays from all of us at ThousandEyes!
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Incredible talk given by Geoff Huston, chief scientist at APNIC, to all ThousandEyes staff today. Do yourself a favor and read his most recent piece on the evolution of the Internet, “Another 10 Years Later”
What a privilege to listen to Geoff Huston talking about the Internet landscape at
@thousandeyes
today! Thanks
@rveloso
and
@mohitlad
for putting this together! 👏🏻👏🏻👏🏻
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ThousandEyes tests detected 2 outages impacting Comcast’s network backbone:
1) In the SF Bay Area between ~9:40pm-11:25pm PT on Nov. 8.
2) On Nov. 9 from 5:05am until ~ 6:15am PT with broader reach across multiple U.S. cities.
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How is the Internet holding up? Despite massive traffic increases — particularly across consumer last-mile networks — we have not seen a significant corresponding spike in Internet outages, which can occur when traffic levels strain network capacity. However... [1/2]
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Excited to be a finalist in the award for Most Innovative use of Software or Cloud Technology in the
#GoTech20
award! And for a closer look at what makes the ThousandEyes Platform so innovative, check out this video:
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At 9:20 AM PST, Comcast suffered a massive outage impacting the continental United States from Ashburn to Seattle. Our data showed that connectivity to services like Netflix, Okta were impacted. Investigating further... stay tuned.
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Power failures hit the Cloud!
#AWS
reported power-related outages at their Ashburn, VA DCs. ThousandEyes detected over 240 services impacted by these outages, not only at the Ashburn location, but cascading failures impacting others as well.
#noreaster
#outage
#outages
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ThousandEyes Endpoint Agents detected loss of end user access to Google Calendar from approximately 7:06am PDT. ThousandEyes tests confirm 404 errors; no related Internet path availability or BGP routing issues have been detected.
#gcaldown
#googlecalendardown
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🥳 Excited to share ThousandEyes Internet Insights has won the Most Innovative Cloud Product or Service award!
The winners have been revealed in this years Cloud Excellence Awards! 🎉
With some spectacular entries, a huge congratulations is in order for the individuals and companies that are making a difference in the cloud industry.
Find out who won here:
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Beginning at approximately 10:10 AM PST, ThousandEyes observed a disruption to Okta availability for some global users. Throughout the incident, HTTP 403 forbidden errors were seen, indicating an application issue rather than Internet or network problems connecting to Okta. 🧵
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More from our Co-founder and CEO
@mohitlad
ThousandEyes + Cisco = A Thousand Times ThousandEyes
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On Dec. 5, just after 11:30AM PST, ThousandEyes observed significant packet loss between global locations and AWS’ us-east-2 region. The loss was seen only between end users connecting via ISPs. The packet loss continued for more than an hour before resolving around 12:50PM PST.
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In
#HybridWork
, cloud has become the new data center, offering a world of advantages. But when a critical app goes down, how do you fix what now sits outside of your control? ThousandEyes Head of Product
@joevaccaro
in
@CIOonline
:
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Some further color on
@GCPcloud
outage. Here's a view of Google network interfaces and connectivity between Zayo's network (AS 6461 on the left) to 14 Google hosted services shown on the right. All affected interfaces in red are geolocated in Chicago, Il.
#googledown
#gcpdown
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Several U.S. banks are experiencing issues this morning as consumers hit their bank websites looking for deposits of promised stimulus checks. ThousandEyes tests show that the network is clean and not the source of the disruptions, suggesting issues are at the application layer.
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Starting at around 7:52 UTC, ThousandEyes observed 100% packet loss in Zscaler’s network, which impacted the reachability of the Zscaler service for some customers. The disruption persisted for ~30 minutes before beginning to clear.
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Today, we are happy to announce we've open-sourced Shoelaces -- a tool that provides the glue for the unmanned bootstrapping of a server using a lightweight mechanism -- under the Apache License Version 2.0. Learn all about how it works here:
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[New] In-depth outage analysis by
@bitprints
is now live on the blog, answering some of the most common questions we've been getting:
#facebookdown
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At approximately 19:45 UTC (11:45 AM PST) on March 5th, ThousandEyes began observing outage conditions in parts of Comcast’s network, which impacted the reachability of many applications and services, including Webex, Salesforce, and AWS.
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Join us for the Branch of One Summit in May! Remote and
#HybridWork
is here to stay: hear from IT leaders how they're navigating the shift, and get a first look at new product innovations purpose-built to support a remote workforce. Sign up here >>
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Starting at ~19:33 UTC, ThousandEyes observed a service disruption for some global Facebook users. Several conditions were seen throughout the incident, ranging from HTTP server errors to extensive packet loss at Facebook’s network edge. It appeared to mostly resolve by ~20:45.
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2020 saw some of the largest Internet outages ever recorded. In this look back, we cover last year's most disruptive outages and what we can learn from them to become more Internet resilient in 2021.
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Starting just before 9am PDT ThousandEyes tests detected that users connecting to and Apple services, such as Apple Pay, began experiencing significant packet loss, which would have prevented many of them from successfully connecting to those services.
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Really interesting read in
@techreview
by
@charlottejee
--> Russia wants to cut itself off from the global internet. Here’s what that really means: Great perspective from
@thousandeyes
'
@naik_ameet
on what it would take.
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The Cisco IT team decided to install ThousandEyes and ended up saving weeks of time. This is what they learned:
@CiscoIT
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Happening in one week! Join us for Branch of One Summit and hear from IT leaders how they're navigating the shift to
#HybridWork
+ be the first to see new product innovations built to support a distributed workforce. Choose your region and sign up here >>
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