General Articles
Latest Articles
Submarine cable resilience. [Geoff Huston]
To DNSSEC or not? [Geoff Huston]
The root zone of the DNS revisited. [Geoff Huston]
My perspective on the OSI 7-laye rmodel. [EtherealMind]
Going dark. [Geoff Huston]
Sender pays. [Geoff Huston]
A second look at QUIC use. [Geoff Huston]
DoH, DoT, and plain old DNS. [Geoff Huston]
Internet edge IP SLA deep dive. [Lost In Transit]
How to kill the Internet with new IPv4 blocks. [Forwarding Plane] [Anchor]
Older Articles
Dennis Jennings and the history of NSFNET. [Russ White]
The cables that keep NZ connected to the world. [Stuff]
Rethinking Internet backbone architectures. [ipSpace] [Telia]
The making of an RFC in today's IETF. [Geoff Huston]
History of USENET. [Russ White]
Concern for the future of an open Internet. [Packet Pushers] [Geoff Huston]
Internet behind the Iron Curtain. [ipSpace] [Russ White]
History of the 1st April RFC. [Russ White]
An open platform to teach how the Internet practically works. [NANOG 78 YouTube]
Deep sea diving. [Geoff Huston]
The Chinese Internet -- a view from inside. [NANOG YouTube]
Internet traffic 2009 - 2019. [NANOG YouTube]
History of the Internet from an Asian perspective. [Network Collective] [Russ White]
Solving Internet backbone problems to deliver on end-user expectations. [No Jitter]
Inside the beach house connecting the world’s Internet. [Packet Pushers] [Motherboard YouTube]
Validating Internet congestion. [Russ White] [APNIC Blog]
Here’s how Microsoft keeps the cost of its network backbone down. [DC Knowledge]
A history of the Internet. [NANOG 72 YouTube]
The meeting that changed the Internet. [Russ White] [CircleID]
A plan to rescue the web from the Internet. [HardOCP] [André Staltz]
How do you build the next-generation internet? [BBC News] [DailyTech]
When and how submarine cables go down. [EtherealMind] [TeleGeography, FAQ]
Transitioning to a single root. [Russ White] [APNIC Blog]
An Internet wide analysis of traffic policing. [NANOG YouTube]
How the Internet works: Submarine fiber, brains in jars, and coaxial cables. [Ars Technica]
Douglas Comer on the future of networking. [ipSpace] [PacketPushers]
Some thoughts on the open Internet. [Geoff Huston]
This is what the Internet looks like IRL. [Wired]
What shape is the Internet? [HardOCP] [Noah Veltman]
A map of the Internet in the US. [Russ White] [WISC PDF]
How the internet really works. [Russ White]
How to build a better Internet. [Gizmodo]
Do networking vendors make their own products? [EtherealMind]
Once upon a time, there was one internet, and it was open to everyone. [Wired]
Everything you need to know about HTTP2. [ReadWriteWeb] [Gizmodo] [Engadget]
Decoding the Internet's hidden infrastructure. [Gizmodo] [Seeing Networks]
MPLS P-router, router, or layer-3 switch? [ipSpace]
The resolvers we use. [Geoff Huston]
Differences between the routing table and FIB. [StackExchange]
Forming a thought process for troubleshooting. [PacketU]
Why have a single core router? [StackExchange]
Network design -- keeping it simple. [Router Jockey]
Packet reordering and service providers. [ipSpace]
TCP is a reliable stream protocol. [ipSpace] [Errata Security]
Using NVI to allow internal hosts to connect to public addresses of hosted servers. [PacketU]
Death to TCP/IP cry Cisco, Intel, US gov and boffins galore. [The Register]
Fate sharing in IP networks. [ipSpace]
Hub-spoke topology -- L3 Links use multiple /30s vs single /24 shared? [Stack Exchange]
Static vs dynamic routing. [Ether Network Training]
Recognising IP MTU issues. [PacketU]
IP Subnetting. [PacketU: part 1, part 2, part 3, part 4, part 5]
Classful IP networks: an introduction to IP address classes. [PacketU]
IP addresses considered harmful. [ipSpace]
Why are IPv4 addresses 32-bit? [StackExchange]
Why exactly would you want a Nexus 7000 in there? [ipSpace]
Network design improvement advice. [Stack Exchange]
Cisco-only core recommendatations. [Reddit]
Ping connectivity tests -- why source matters. [PacketUl]
How can ISPs on one continent connect to ISPs on another continent? [StackExchange]
Addressing 2013. [Geoff Huston]
PMTUD and retransmission. [StackExchange]
What is a non-portable IPv4 address block? [StackExchange]
Overlay networking simplicity is abstraction, coupling and integration. [EtherealMind]
Programming the network: a few guidelines. [ipSpace]
A foundation for tomorrow's cores. [Juniper]
A simplified look at Proxy ARP. [PacketU]
The operation of Proxy ARP. [PacketU]
Understanding routed and routing protocols. [PacketU]
IP addresses and traceback. [Geoff Huston]
How can hosts with public IP addresses have nodes with private IP addresses in their tracroute? [StackExchange]
Introducing HSRP. [PacketU]
Estimating the number of TCP sessions per host. [ipSpace]
Why is IPSec so complex? [ipSpace]
Subnetting aggregation. [StackExchange]
MTU and fragmentation. [StackExchange]
IPv4 route redistribution session followup. [CCIE Blog]
Cisco PBR verify-availability with interface instead of next-hop. [StackExchange]
Overlay virtual networks 101. [ipSpace]
Risks of using non-private IP addresses internally? [StackExchange]
Valuing IP addresses. [Geoff Huston]
New iPhones may be using Multipath TCP for Siri. [TUAW] [iMore] [AppleInsider] [Quartz] [PocketNow] [Ars Technica]
Multipath TCP: Siri's new toy isn't a game-changer. [The Register]
Nine immutable laws of network design. [Network Computing]
Position of src and dst IP in an IP packet. [StackExchange]
Disambiguating discontiguous networks. [PacketU]
Packet sizes in a TCP stream. [StackExchange]
All IP addresses are not the same. [Geoff Huston]
WTF is... routing protocol for low-power and lossy networks? [The Register]
Reconfiguring Layer3 Switch to enable IP routing and become the default gateway. [StackExchange]
A day in the life of an overlaid virtual packet. [ipSpace]
Are overlay networking tunnels a scalability nightmare? [ipSpace]
Using IP addresses from IP pool given by ISP. [StackExchange]
How to check for a valid public IP address? [StackExchange]
Should IPv4 ICMP from untrusted interfaces be blocked? [StackExchange]
Integrating overlay networking and the physical network. [EtherealMind]
Bad mask for IP address error. [StackExchange]
How are two "ip helper-address" statements handled? [StackExchange]
How to connect 5 different networks together. [StackExchange]
Backing up Cisco router configuration -- including ssh keys. [StackExchange]
The difference between access lists and prefix lists. [ipSpace]
Optimal L3 forwarding with VARP and active/active VRRP. [ipSpace]
VRRP, anycasts, fabrics, and optimal forwarding. [ipSpace]
Are stateless ACLs good enough? [ipSpace]
Designing for high availability and system failure. [DC Knowledge]
TCP, HTTP, and SPDY dive deeper. [ipSpace]
The saga of oversubscriptions. [ipSpace]
WAN circuit topologies. [PacketLife]
Fujitsu reveals data transfer protocol 30 times faster than TCP. [The Register]
Amazing, invisible work that goes on when you click an HTTPS link. [BoingBoing] [MoserWare]
IP packet delivery confirmation. [ipSpace]
Coping with holiday traffic -- secondary DHCP subnets. [ipSpace]
Disabling IP unreachables breaks pMTUd. [ipSpace]
Network design without busting your budget. [Network Sherpa]
TCP incast and cloud application performance. [Brad Hedlund]
Turning numbers into names: how IP address lookups are done. [Ars Technica]
TCP windows and window scaling. [PacketLife]
TCP/IP is like a mainfrain -- you can't change a thing. [IOS Hints]
TCP selective acknowledgements (SACK). [PacketLife]
Understanding Understanding TCP sequence and acknowledgment numbers. [PacketLife]
RFC 5798: VRRPv3 [IETF] [PacketLife]
© Robert Larsen. All rights reserved.