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来自 每日资讯 2019-11-24 08:12 的文章
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4. 升华到人生哲学,您的ISP必须首先支持IPv6


The first two eras of the internet

During the first era of the internet — from the 1980s through the early 2000s — internet services were built on open protocols that were controlled by the internet community. This meant that people or organizations could grow their internet presence knowing the rules of the game wouldn’t change later on. Huge web properties were started during this era including Yahoo, Google, Amazon, Facebook, LinkedIn, and YouTube. In the process, the importance of centralized platforms like AOL greatly diminished.

During the second era of the internet, from the mid 2000s to the present, for-profit tech companies — most notably Google, Apple, Facebook, and Amazon (GAFA) — built software and services that rapidly outpaced the capabilities of open protocols. The explosive growth of smartphones accelerated this trend as mobile apps became the majority of internet use. Eventually users migrated from open services to these more sophisticated, centralized services. Even when users still accessed open protocols like the web, they would typically do so mediated by GAFA software and services.

The good news is that billions of people got access to amazing technologies, many of which were free to use. The bad news is that it became much harder for startups, creators, and other groups to grow their internet presence without worrying about centralized platforms changing the rules on them, taking away their audiences and profits. This in turn stifled innovation, making the internet less interesting and dynamic. Centralization has also created broader societal tensions, which we see in the debates over subjects like fake news, state sponsored bots, “no platforming” of users, EU privacy laws, and algorithmic biases. These debates will only intensify in the coming years.

就在IANA宣布开始分配最后的IPv4地址块后,微软今天公布了Bing.com 的IPv6支持,并将在2011年6月8日正式面向所有用户发布。


“Web 3” — the third era of the internet

One response to this centralization is to impose government regulation on large internet companies. This response assumes that the internet is similar to past communication networks like the phone, radio, and TV networks. But the hardware-based networks of the past are fundamentally different than the internet, a software-based network. Once hardware-based networks are built, they are nearly impossible to rearchitect. Software-based networks can be rearchitected through entrepreneurial innovation and market forces.

The internet is the ultimate software-based network, consisting of a relatively simple core layer connecting billions of fully programmable computers at the edge. Software is simply the encoding of human thought, and as such has an almost unbounded design space. Computers connected to the internet are, by and large, free to run whatever software their owners choose. Whatever can be dreamt up, with the right set of incentives, can quickly propagate across the internet. Internet architecture is where technical creativity and incentive design intersect.

The internet is still early in its evolution: the core internet services will likely be almost entirely rearchitected in the coming decades. This will be enabled by crypto-economic networks, a generalization of the ideas first introduced in Bitcoin and further developed in Ethereum . Cryptonetworks combine the best features of the first two internet eras: community-governed, decentralized networks with capabilities that will eventually exceed those of the most advanced centralized services.



In the last post of my IPv6 series, I outlined the main reason why you should now get started with IPv6: IPv6 will come soon to your network whether you like it or not. Network engineers have a few other reasons to offer, and this is the topic of the next two articles. The new IPv6 features are not really new because the protocol has already existed for more than 10 years. For this reason, I won’t just repeat the feature descriptions, which you can read on countless other sites, but I will outline my view about the significance of these enhancements.

Why decentralization?

Decentralization is a commonly misunderstood concept. For example, it is sometimes said that the reason cryptonetwork advocates favor decentralization is to resist government censorship, or because of libertarian political views. These are not the main reasons decentralization is important.

Let’s look at the problems with centralized platforms. Centralized platforms follow a predictable life cycle. When they start out, they do everything they can to recruit users and 3rd-party complements like developers, businesses, and media organizations. They do this to make their services more valuable, as platforms (by definition) are systems with multi-sided network effects. As platforms move up the adoption S-curve, their power over users and 3rd parties steadily grows.

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When they hit the top of the S-curve, their relationships with network participants change from positive-sum to zero-sum. The easiest way to continue growing lies in extracting data from users and competing with complements over audiences and profits. Historical examples of this are Microsoft vs Netscape, Google vs Yelp, Facebook vs Zynga, and Twitter vs its 3rd-party clients. Operating systems like iOS and Android have behaved better, although still take a healthy 30% tax, reject apps for seemingly arbitrary reasons, and subsume the functionality of 3rd-party apps at will.

For 3rd parties, this transition from cooperation to competition feels like a bait-and-switch. Over time, the best entrepreneurs, developers, and investors have become wary of building on top of centralized platforms. We now have decades of evidence that doing so will end in disappointment. In addition, users give up privacy, control of their data, and become vulnerable to security breaches. These problems with centralized platforms will likely become even more pronounced in the future.

  1. 层次分明,逻辑清晰

  2. 引用精确数字

  3. 使用具体例子(极端事例,幽默)

World IPv6 Day: Bing taking decisions to the next generation of the Internet

The Bing Team

2/3/2011 8:00 AM

Earlier today,IANA, the international body responsible for distributing Internet addresses,completed its final allocation of IPv4 addresses. IPv4 has been the primary communication protocol for the Internet for more than 20 years, so this final allocation marks the end of an era, to the extent the brief history of the Internet can be categorized this way.

Considering the rapid proliferation of personal computers, smartphones, networked appliances, and other connected devices around the world, it’s easy to conceive how we’ve already exhausted four billion IPv4 addresses.

Microsoft and other major technology companies have been working behind the scenes for years to outline a clear path to the next generation Internet Protocol, IPv6. Although a complete migration will take years, we are hopeful that the vast majority of people will never notice the transition.

Microsoft has worked as a member ofInternet Society – and more generally the Internet community – to invest in and ensure that there is a seamless transition from IPv4 to IPv6. It is especially important for Microsoft’s online services likeBingto be prepared. For this reason, Bing is joining other major websites in “World IPv6 Day” on June 8, 2011 as part of the Internet Society’s effort to validate the readiness of IPv6 as new foundation of the Internet.

On June 8, we will enable world-wide IPv6 connectivity to Bing.com, for the purposes of a one-day test. Consumers with IPv6 Internet capabilities will automatically access this new method of connectivity. This necessitates both a device that supports IPv6 , and support from your Internet provider.

IPv4 traffic will continue to connect to Bing without any change. In fact, most Bing users won’t even notice that this transition is occurring.

At Microsoft, we have been working towards the promise of a smooth and prudent transition, and teams across the company have been readying our products and services to support IPv6. Many of our products, likeWindows and Windows Server, have had robust IPv6 support for years.

This is another step in the multi-year process to shepherd in a new Internet era, with billions upon billions of addresses representing billions of devices and users. The number of addresses available under IPv6 ismore than 300 trillion trillion trillion.

For more detail, you can Bing it:

Kevin Boske- Program Manager, Bing

Large address space

While the other new IPv6 features are all nice to have, the new large address space is certainly the main (perhaps the only) reason why IPv6 will come.An IPv4 address consists of 32 bits; the IPv4 address space, therefore, allows 232 addresses. An IPv6 address is four times as long and has 128 bits. Thus, in theory, IPv6 allows 2128 = 340,282,366,920,938,463,463,374,607,431,768,211,456 addresses. This corresponds to 655,570,793,348,866,943,898,599 (6.5×1023) addresses for every square meter of the Earth’s surface.

To be honest, I am not really impressed by these numbers. We are now entering the nano technology age, which means that we will have more and more, much smaller, communication devices than the IPv6 inventors have anticipated. Considering that a cubic meter of ideal gas contains around 1025 atoms, the number of 1023 IP addresses per square meter appears to be relatively small. I know this sounds like science fiction, but, for the inventors of IPv4, the Internet as we know it today certainly was science fiction at their time. We needed about 30 years to use up all of the IPv4 addresses. My gut tells me that the IPv6 addresses won’t last that long.

Enter cryptonetworks

Cryptonetworks are networks built on top of the internet that 1) use consensus mechanisms such as blockchains to maintain and update state, 2) use cryptocurrencies (coins/tokens) to incentivize consensus participants (miners/validators) and other network participants. Some cryptonetworks, such as Ethereum, are general programming platforms that can be used for almost any purpose. Other cryptonetworks are special purpose, for example Bitcoin is intended primarily for storing value, Golem for performing computations, and Filecoin for decentralized file storage.

Early internet protocols were technical specifications created by working groups or non-profit organizations that relied on the alignment of interests in the internet community to gain adoption. This method worked well during the very early stages of the internet but since the early 1990s very few new protocols have gained widespread adoption.Cryptonetworks fix these problems by providing economics incentives to developers, maintainers, and other network participants in the form of tokens. They are also much more technically robust. For example, they are able to keep state and do arbitrary transformations on that state, something past protocols could never do.

Cryptonetworks use multiple mechanisms to ensure that they stay neutral as they grow, preventing the bait-and-switch of centralized platforms. First, the contract between cryptonetworks and their participants is enforced in open source code. Second, they are kept in check through mechanisms for “voice” and “exit.” Participants are given voice through community governance, both “on chain” (via the protocol) and “off chain” (via the social structures around the protocol). Participants can exit either by leaving the network and selling their coins, or in the extreme case by forking the protocol.

In short, cryptonetworks align network participants to work together toward a common goal — the growth of the network and the appreciation of the token. This alignment is one of the main reasons Bitcoin continues to defy skeptics and flourish, even while new cryptonetworks like Ethereum have grown alongside it.

Today’s cryptonetworks suffer from limitations that keep them from seriously challenging centralized incumbents. The most severe limitations are around performance and scalability. The next few years will be about fixing these limitations and building networks that form the infrastructure layer of the crypto stack. After that, most of the energy will turn to building applications on top of that infrastructure.

4. 升华到人生哲学

Hierarchical addressing

The Internet address classes of IPv4 allow hierarchical addressing to a certain extent. Hierarchical addressing makes routing more efficient because it reduces the size of routing tables. However, considering that the computation power of routers increased at a higher rate than the growth of the Internet, this was not really a problem.

Nevertheless, it is quite likely that the Internet will now grow at a higher rate than ever before, not only because the total population of the emerging markets (especially China and India) far exceeds the population in the developed world but also because the new type of devices (mobile phones, tablets, ebook readers, TV sets, etc.) also require IP addresses. Thus IPv6’s new hierarchical addressing capabilities are certainly important. And here the IPv6 inventors did not really scrimp. Of the 128 bits of an IPv6 address, 64 bits are used for hierarchical addressing, 48 bits for the public topology, and 16 bits for the site topology. The latter means that you can work with hierarchical addresses within your organization.

How decentralization wins

It’s one thing to say decentralized networks should win, and another thing to say they will win. Let’s look at specific reasons to be optimistic about this.

Software and web services are built by developers. There are millions of highly skilled developers in the world. Only a small fraction work at large technology companies, and only a small fraction of those work on new product development. Many of the most important software projects in history were created by startups or by communities of independent developers.

“No matter who you are, most of the smartest people work for someone else.” — Bill Joy

新濠国际登录平台,Decentralized networks can win the third era of the internet for the same reason they won the first era: by winning the hearts and minds of entrepreneurs and developers.

An illustrative analogy is the rivalry in the 2000s between Wikipedia and its centralized competitors like Encarta. If you compared the two products in the early 2000s, Encarta was a far better product, with better topic coverage and higher accuracy. But Wikipedia improved at a much faster rate, because it had an active community of volunteer contributors who were attracted to its decentralized, community-governed ethos. By 2005, Wikipedia was the mostpopular reference site on the internet. Encarta was shut down in 2009.

The lesson is that when you compare centralized and decentralized systems you need to consider them dynamically, as processes, instead of statically, as rigid products. Centralized systems often start out fully baked, but only get better at the rate at which employees at the sponsoring company improve them. Decentralized systems start out half-baked but, under the right conditions, grow exponentially as they attract new contributors.

In the case of cryptonetworks, there are multiple, compounding feedback loops involving developers of the core protocol, developers of complementary cryptonetworks, developers of 3rd party applications, and service providers who operate the network. These feedback loops are further amplified by the incentives of the associated token, which — as we’ve seen with Bitcoin and Ethereum — can supercharge the rate at which crypto communities develop (and sometimes lead to negative outcomes, as with the excessive electricity consumed by Bitcoin mining).

The question of whether decentralized or centralized systems will win the next era of the internet reduces to who will build the most compelling products, which in turn reduces to who will get more high quality developers and entrepreneurs on their side. GAFA has many advantages, including cash reserves, large user bases, and operational infrastructure. Cryptonetworks have a significantly more attractive value proposition to developers and entrepreneurs. If they can win their hearts and minds, they can mobilize far more resources that GAFA, and rapidly outpace their product development.

“If you asked people in 1989 what they needed to make their life better, it was unlikely that they would have said a decentralized network of information nodes that are linked using hypertext.” — Farmer & Farmer

Centralized platforms often come bundled at launch with compelling apps: Facebook had its core socializing features and the iPhone had a number of key apps. Decentralized platforms, by contrast, often launch half-baked and without clear use cases. As a result, they need to go through two phases of product-market fit: 1) product-market fit between the platform and the developers/entrepreneurs who will finish the platform and build out the ecosystem, and 2) product-market fit between the platform/ecosystem and end users. This two-stage process is what causes many people — including sophisticated technologists — to consistently underestimate the potential of decentralized platforms.

  1. 给策略取个名字

  2. 政治导向正确

  3. 棘手问题:转移问题重点,然后见第四点

Better support for Quality of Service (QoS)

IPv4 has limited support for Quality of Service (QoS)—that is, real-time delivery of data through the Type of Service (TOS) field.

One problem of QoS in IPv4 pertains to TCP and UDP port identification, which is not possible if the IPv4 packet is encrypted.

The other problem is that QoS in IPv4 is not really standardized.

The IPv6 header has the Flow Label field, which allows QoS handling that is independent of the payload.

While this new feature is technically interesting, in practice QoS is quite problematic for traffic on the public Internet. You might have heard of the stir that the alleged Google-Verizon deal caused. Google intended to pay Verizon to prioritize their traffic.


The main question is how you decide which traffic has priority. Is it justified that you have to wait for the latest 4sysops article to show up on your screen just because some teens clogged the net with their YouTube videos? And if you pay for QoS, how can you measure that your traffic really has a higher priority? One thing is for sure, if QoS really comes, then the complexity level of the Internet will be raised again by one or two bars, which means more work for IT pros.

In the next post I will talk about IPv6 IPsec and the IPv6 LAN features.


The next era of the internet

Decentralized networks aren’t a silver bullet that will fix all the problems on the internet. But they offer a much better approach than centralized systems.

Compare the problem of Twitter spam to the problem of email spam. Since Twitter closedtheir network to 3rd-party developers, the only company working on Twitter spam has been Twitter itself. By contrast, there were hundreds of companies that tried to fight email spam, financed by billions of dollars in venture capital and corporate funding. Email spam isn’t solved, but it’s a lot better now, because 3rd parties knew that the email protocol was decentralized, so they could build businesses on top of it without worrying about the rules of the game changing later on.

Or consider the problem of network governance. Today, unaccountable groups of employees at large platforms decide how information gets ranked and filtered, which users get promoted and which get banned, and other important governance decisions. In cryptonetworks, these decisions are made by the community, using open and transparent mechanisms. As we know from the offline world, democratic systems aren’t perfect, but they are a lot better than the alternatives.

Centralized platforms have been dominant for so long that many people have forgotten there is a better way to build internet services. Cryptonetworks are a powerful way to develop community-owned networks and provide a level playing field for 3rd-party developers, creators, and businesses. We saw the value of decentralized systems in the first era of the internet. Hopefully we’ll get to see it again in the next.

1. US-China relationship: 

It was a perfect strategy for the U.S. to control the IP, technology and brands, leaving the low-end jobs for the world. American international companies have earned millions and millions dollars from globalization. The real issue is where the money went. During the past 30 years, America had 13 wars, spending 14.2 trillion dollars. What if spending part of the money building the infrastructure and helping out people. Also, the money went to the Wall Street. The 2008 financial crisis wiped out 19.2 trillion dollars in the U.S. alone. What if the money was spent in the Midwest to develop the industry there? It's not other countries stealing jobs away, it is the America's strategy. You did not distribute the money in the proper way. 

China and U.S. will never have a trade war. We should give President Trump sometime. He is open-minded and he is listening. It's so easy to launch a war, but it's so hard to terminate a war. Iraq War, Afghanistan War, is that finished? No! When trade stops, the war starts. Trade is something that people start to communicate, something that make people exchange culture and values. If China and U.S. have a trade war, it would be a disaster. 

2. Globalization 

Globalization is good but needs to be improved. It should be the inclusive one. What if we can support 20 million small businesses to do business cross the border in the next 30 years?

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