An internet milestone known as “768k Day” is getting closer and some network administrators are shaking in their boots fearing downtime caused by outdated network equipment.
The fear is justified, and many companies have taken precautions to update old routers, but some cascading failures are still predicted.
What is 768k Day?
The term 768k Day comes from the original mother of all internet outages known as 512k Day.
512k Day happened on August 12, 2014, when hundreds of ISPs from all over the world went down, causing billions of dollars in damages due to lost trade and fees, from a lack of internet connectivity or packet loss.
The original 512k Day took place because routers ran out of memory for storing the global BGP routing table, a file that holds the IPv4 addresses of all known internet-connected networks.
At the time, a large chunk of the internet was being routed through devices that were allocating TCAM (ternary content-addressable memory) large enough to store no more than 512,000 internet routes.
But when on August 12, 2014, Verizon added 15,000 new BGP routes, this caused the global BGP routing table to suddenly go over the 512,000 lines without warning. On older routers, this manifested by the global routing table file overflowing from its allocated memory, crashing the devices every time they attempted to read or work with the file. Companies like Microsoft, eBay, LastPass, BT, LiquidWeb, Comcast, AT&T, Sprint, and Verizon, were all impacted.
Many legacy routers received emergency firmware patches that allowed network admins to set a higher threshold for the size of the memory allocated to handle the global BGP routing table.
Most network administrators followed documentation provided at the time and set the new upper limit at 768,000 — aka 768k.
Global BGP routing table reaching 768,000 limit on older routers
CIDR Report, a website that keeps track of the global BGP routing table, puts the size of this file at 773,480 entries; however, their version of the table isn’t official and contains some duplicates.
A Twitter bot named BGP4-Table, which has also been tracking the size of the global BGP routing table in anticipation of 768K Day, puts the actual size of the file at 767,392, just a hair away from overflowing.
768 Day expected within a month
ZDNet spoke today with Aaron A. Glenn, a networking engineer with AAGICo Berlin, and Jim Troutman, Director at the Northern New England Neutral Internet Exchange (NNENIX).
Both estimate 768K Day happening within the next month.
But unlike many network admins, they don’t expect the event to cause internet-wide outages like in 2014. However, both Glenn and Troutman expect some companies and smaller, local ISPs to be affected.
“I would be mildly surprised if there was any interruption or outage at any real scale,” Glenn told ZDNet. “Ten years ago there was a much wider IP transit market. Now there are a handful of large players that have mostly suitable gear.”
“I don’t expect it to cause ‘massive disruption’ for the internet,” Troutman said, echoing his colleague’s thoughts. “The internet has a lot more resilience and redundancy than most people think.”
“There will certainly be some network operators and corporate end-user organizations who will be caught unaware and will experience problems,” he added.
Some network admins have prepared
The good news is that network admins have known about 768k Day for a long time, and many have already prepared, either by replacing old routers with new gear or by making firmware tweaks to allow devices to handle global BGP routing tables that exceed even 768,000 routes.
“Yes, TCAM memory settings can be adjusted to help mitigate, and even go beyond 768k routes on some platforms, which will work if you don’t run IPv6. These setting changes require a reboot to take effect,” Troutman said.
“The 768k IPv4 route limit is only a problem if you are taking ALL routes. If you discard or don’t accept /24 routes, that eliminates half the total BGP table size.
“The organizations that are running older equipment should know this already, and have the configurations in place to limit installed prefixes. It is not difficult,” Troutman added.
“I have a telco ILEC client that is still running their network quite nicely on old Cisco 6509 SUP-720 gear, and I am familiar with others, too,” he said.
The trick, according to Troutman, is to have ISPs and other network operators using older gear point all their outbound traffic for /24 routes to upstream transit providers, which are most likely running modern gear and will pick it up for their clients.
“If you are affected by 768k you know and have known and done everything you can already,” Glenn said, describing industry efforts to prepare for 768k Day.
Right now, it’s impossible to know how many routers and networks will be impacted on 768k Day, as there’s no Shodan search query that can give us the number and location of vulnerable routers.
But as Glenn told ZDNet, “the Cisco 6500/7600 product line was extremely popular for an exceptionally long time in many, many places,” so don’t be surprised if some networks go offline because they forgot about 768k Day and didn’t prepare.
More tech news coverage:
Hertz massive Tesla Model 3 EV order sends interest rocketing
Hertz today made a whopper of an announcement, revealing that it will be ordering 100,000 Teslas over the next year and adding those EVs to its fleet. Not only that, but Hertz will also install several thousand chargers at its network of locations around the US and Europe. With this move, Hertz says that it will “offer the largest EV rental fleet in North America and one of the largest in the world.”
Specifically, Hertz said today that it would purchase 100,000 Tesla Model 3s and those cars will start being available at airport and neighborhood locations across the US and Europe in November. At first, Hertz says its EV fleet will only be available in major markets within the US and “select cities” in Europe, but it seems the company is looking to expand availability rather quickly.
By the end of 2022, Hertz says it plans to have these Tesla Model 3s available in 65 markets, expanding further to 100 markets by the end of 2023. In all, Hertz plans to install 3,000 Tesla superchargers at various locations in the US and Europe as well. Perhaps unsurprisingly, this announcement sent Tesla’s stock on something of a surge this morning, but even more important is the impact this could have on the public perception of electric vehicles.
Hertz says that EVs will comprise more than 20% of its global rental fleet when the order is complete. In addition to placing this order, Hertz has also hired NFL star Tom Brady for an ad campaign centered around renting, driving, and charging these Tesla Model 3s. On Hertz’s website, we see that charging will be included in EV rentals, but only for a limited time. Beyond February 1st, 2022, it sounds like renters will have to foot the bill for charging.
It’s an ambitious plan, but in today’s announcement, Hertz cautions that the order of 100,000 Tesla Model 3s may be impacted by factors outside of its control. Specifically, the company is talking about the global semiconductor shortage, which could impact the production of computing hardware for some time to come. In any case, look for the option to rent a Tesla Model 3 to start popping up at Hertz locations next month.
Bently Mulliner to unveil new bespoke collections at the Fort Lauderdale Boat Show
Bentley Mulliner has curated three new bespoke design collections for its American clientele. The Mulliner Nauticus Collection will debut at the Fort Lauderdale International Boat Show this October 27 to 31, 2021. The Nauticus Collection includes four Continental GT V8 Convertible models dressed in a fancy yachting theme.
The Continental GT Nauticus Collection has Aegean Blue and Ghost White paint with custom 22-inch Aegean Blue polished wheels. Wearing Bentley Mulliner’s carbon fiber Styling Specification, each Nauticus Bentley also gets a carbon front splitter, side skirts, rear spoiler, and rear diffuser. Also, the interior is resplendent in Brunel, Linen, and Portland leather in bespoke color splits, while the center console is home to open-pore chevron light veneers.
“This timeless classic further highlights the infinite possibilities and abilities in which to blend art and technology into a unique emotion and experience,” said Peter Brandt, Holmann Automotive Vice President and General Manager of Bentley Fort Lauderdale. “The individuality and distinctiveness of the Mulliner design aesthetics perfectly align with our pursuit of creating unique customer experiences.”
Meanwhile, Bentley of Manhattan commissioned the Mulliner Skyline Collection for the Flying Spur, Continental GT Convertible, and Bentayga luxury SUV. As expected, the Skyline Collection draws inspiration from the breathtaking skyscrapers of the Big Apple.
All members of the Mulliner Skyline Collection will wear a unique Onyx black paint applied by hand and robots, said Bentley. Other noteworthy features include 22-inch black and silver alloy wheels, darker exterior trim, LED welcome lighting, and premium silver interior trim.
Last but not least is the Mulliner Miami Collection, inspired by Miami’s colorful lifeguard stations and pulsating art scene. The collection includes the Flying Spur, Bentayga, and Continental GT finished in bright Orange, Blue, and Lime Green paint. Inside, Bentley’s Miami Collection gets two-tone painted piano veneers, Klein Blue leather upholstery, and bespoke quilting, among many others.
“Our dealers are very involved in each of their local markets and communities with appreciation to maximize the ability to promote Bentley’s craftsmanship,” said Mike Rocco, Vice President of Sales & Operations for Bentley Americas. “The opportunity to expand inventory offering to customers and present a truly unique experience through the Personal Commissioning Guide is remarkable.”
Vazirani Ekonk is possibly the world’s lightest electric car
Indian electric automaker Vazirani is not as mainstream as Tesla and other legacy EV makers, but what will soon change with the launch of Ekonk performance EV. The Ekonk is a low-drag performance concept that signifies the birth of Vazirani’s assault in the burgeoning EV category. The name ‘Ekonk’ is a derivative from Indian scriptures representing the divine light, “where for the first time design and innovation comes together,” said the company.
From the looks of it, the Ekonk is a dedicated performance contender, and it’s doing it the old school way: By shedding weight. Vazirani claims Ekonk is the world’s lightest electric car, and losing pounds in an EV is hard to do without losing a wheel or two. Tipping the scales at around 1627 pounds (738kg), the Ekonk is almost as lightweight as other three-wheeled EVs like the Arcimoto (590 kg) and Daymak Spiritus (620 kg).
In addition, Ekonk is lighter than the Aptera solar EV (816 kg), and it has four wheels instead of three, so Vazirani may be up to something here. How did they do it? “Biomimicry – studying how animals and humans use breathing to regulate their body temperatures – combined with some ancient Indian manufacturing techniques resulted in the invention of the DiCo technology,” said Chunky Vazirani, CEO of Vazirani.
Vazirani’s proprietary DiCo battery cooling technology “allows the batteries to cool directly with the air, as opposed to needing liquid cooling,” adds Vazirani. The carmaker adds DiCo is the first solid-state direct cooling system that utilizes nanoparticle technology to enhance the range and performance of any EV.
The automaker did not mention the battery capacity, but it did say Ekonk can rush to 60 mph from a dead stop in 2.5-seconds and has a top speed of 192 mph. Also, we have no idea how many motors are hiding underneath Ekonk’s aerodynamically optimized body shell, but Vazirani claims 722 horsepower and mountains of torque.
Additionally, Ekonk is a proper driver’s car. Vazirani said Ekonk has no driver aids, with just the electric motors and the wheels separating the driver from the road. It’s not a bad-looking thing, either, but the absence of a fixed or foldable roof means this car is a genuine track toy. If you don’t like a speedster, Vazirani also has the Shul hyper EV (with two doors and a roof) with the same DiCo battery cooling technology.
macOS 12 Monterey: The Ars Technica review
Big Sur was a landmark release of macOS, in ways both technical and symbolic. It introduced a major new redesign,...
Florida’s surgeon general refused to wear mask to meet senator with cancer
Enlarge / Florida Surgeon General Dr. Joseph Ladapo speaks during a press conference at Neo City Academy in Kissimmee, Florida....
Review: Locke and Key comes back better than ever with action-packed S2
Enlarge / The present generation of Locke descendants—Tyler (Connor Jessup), Bode (Jackson Robert Scott), and Kinsey (Emilia Jones)—still have a...
LG is apparently working on its first Chromebook
The market for Chromebooks is generally growing this year despite recent pandemic-related slowdowns, and it looks like more PC vendors are...
Facebook’s stock shrugs off bad-news deluge – TechCrunch
After social media company Snap reported earnings last week, the value of its cohort of public companies fell sharply. Snap...
Social2 years ago
CrashPlan for Small Business Review
Gadgets3 years ago
A fictional Facebook Portal videochat with Mark Zuckerberg – TechCrunch
Cars3 years ago
What’s the best cloud storage for you?
Social3 years ago
iPhone XS priciest yet in South Korea
Mobile3 years ago
Memory raises $5M to bring AI to time tracking – TechCrunch
Security3 years ago
Google latest cloud to be Australian government certified
Cars3 years ago
SK Telecom and Samsung to collaborate on 5G for enterprise
Social3 years ago
Apple’s new iPad Pro aims to keep enterprise momentum