What to read about ISP infrastructure, protocols, and communications system design
We continue to share materials [раз, два] about the work of telecom operators, their tools and issues that they periodically face. This collection contains posts about the reasons for the shortage of network equipment and HDD, alternatives to the VPN / IPoE server ACCEL-PPP and the laying of new broadband communication lines in developed countries.
World practices and regulation
Housing and communal services and telecom – why and why should they work together… We are figuring out how effective the type of cooperation is when a developer and a telecom operator introduce smart home elements in a new building. We discuss the experience of foreign countries – Taiwan, Spain, Great Britain – and explain whether it can be effectively adapted to Russian realities.
Construction of new broadband communication lines in developed countries… A post from our Hubrablog about regulatory initiatives in the UK, Germany and Sweden. The first pull fiber to every home, the second secure the right to fast access to the network, and the third plan to provide citizens with gigabit Internet by 2025. We also prepared a separate article on how things are with broadband connections in the United States – they want to revise the complex system of tariffing for Internet services.
Do providers need to block pirated content on their networks?… Film studios, streaming platforms and game publishers claim pirates are to blame lose billions of dollars proceeds. At the same time, large research organizations – including the European Commission – do not find confirmation of this fact. Despite the lack of consensus, many foreign providers block pirated content, but this practice is not common in Russia. In the article, we discuss what tasks will be faced by telecom operators if the government decides to tackle this issue and develops an appropriate bill. We will also talk about what methods of dealing with illegal content are already being used.
What interferes with the work of providers
What is the reason for HDD shortage and what will it affect?… Over the past months of hard drive sales grew by one and a half, or even two times, and prices for some models tripled… It is all to blame for the growth in demand on the side of the “miners”. In pursuit of profit, enthusiasts are buying not only consumer drives, but also commercial devices designed for work in data centers. The article will discuss how Internet providers definitely not worth it solve the problem with the lack of storage systems. Spoiler – no need to purchase used equipment, as you can get “tired” media that have been in mining farms for a long time.
How the difficult epidemiological situation got to the providers… The pandemic has hit electronics suppliers and disrupted supply chains. The situation is gradually returning to normal, but supplies are still uneven – this also applies to network equipment required by providers. What should they expect on the horizon of the coming years and what measures are being taken to smooth out the consequences – this is our material.
What rock climbing and the development of underwater highways have in common… It turns out that the equipment for laying transatlantic cables resembles a climbing descent device. In both cases, the core of the rope and cable can be twisted by the screw if it has poor adhesion to the braid (or insulation). Such damage leads to the need to repair or replace the line. A group of scientists began to solve this problem – specialists will prepare a scientific basis and offer options for detecting cables with the effect of “internal twisting”. In the article, we talk about the difficulties that engineers will face – from the point of view of the laws of physics and regulators.
Networks and protocols
What to “change” to after ACCEL-PPP… It is an open source VPN / IPoE server for Linux. It allows you to configure subscribers’ access to the Internet and is great for small providers. But with the growth of the client base, its capabilities begin to be lacking. Here are the pros and cons of a number of alternative solutions that can be found on the market.
CG-NAT – why you need it and how to start using… An article where we analyze several solutions for working with CG-NAT, including A10 Networks Thunder, F5 BIG-IP and Cisco ASR 9000. We also provide a small instruction on how to independently configure and manage NAT.
Why DNS encryption is not always effective – discussing expert opinions… An overview of why DoH and DoT do not have a positive effect on the security of connections and can even harm it. In this habrapost, we discuss the vulnerabilities of the protocols – Server Name Indication (SNI) and Online Certificate Status Protocol responses (OCSP) – as well as new cyberattacks using DNS-over-HTTPS.
How to scale BRAS – key requirements… We tell you how to expand the capabilities of the network infrastructure – in particular, we talk about vertical and horizontal scaling for L3 and L2 schemes BRAS… In the first case, the system interacts with subscribers through intermediate routers, and in the second, directly. We analyze the cases with examples based on Intel and AMD servers and connection diagrams.
Additional reading in our blog and on Habré:
Why does a UK provider need hollow fiber
Fake comments could have influenced the decision to cancel net neutrality
Don’t need end-to-end? The fight against encryption in the Western world is gaining momentum