Last year I wrote about big disruptive outages on the T-Mobile and the CenturyLink networks. Those outages demonstrate how a single circuit failure on a transport route or a single software error in a data center can spread quickly and cause big outages. I join a lot of the industry in blaming the spread of these outages on the concentration and centralization of networks where the nationwide routing of big networks is now controlled by only a handful of technicians in a few locations. In early October, we saw the granddaddy of all network outages... more
The network operations community is cautiously heading back into a mode of in-person meetings, and the NANOG meeting at the start of November was a hybrid affair with a mix of in-person and virtual participation, both by the presenters and the attendees. I was one of the virtual mob, and these are my notes from the presentations I found to be of personal interest. I hope you might also find them to be of interest as well... The year 2021 has not been a good year for Internet outages. more
With so much "cloud-talk" across every industry -- many presume that every company with serious telecom operations has already moved there -- but they haven't. In fact, 20 to 25% of global companies are still using legacy PBX systems and MPLS networks and waiting to replace them and move over to SD-Wan/mesh solutions. These advancements can be done successfully after an infrastructure audit has been conducted to identify operational weaknesses and threat vulnerabilities and measuring efficiencies of each feature for usage optimization and increased productivity. more
Neal Stephenson’s foundational cyberpunk novel Snow Crash brought to the public the concept of a metaverse, a virtual reality in which people interact using avatars in a manufactured ecosystem, eschewing the limitations of human existence. More recently, Ready Player One capitalized on that idea and brought it back to prominence with a bestselling novel and subsequent film adaptation. Amid rebranding efforts and seeking a new way forward, Mark Zuckerberg has made it Facebook’s (now Meta Platforms) priority to build a platform that could enable the metaverse to become a mainstream technology with the sort of reach that their social networks and WhatsApp have. more
We had a very interesting presentation and discussion regarding the topic of interplanetary internet with my international colleagues, of which Vint Cerf – one of the “fathers of the internet” – is also a member. As a partner of the Interplanetary Networking Special Interest Group (IPNSIG), he took us on a journey that he has been involved with over the last 20 years regarding communication networks in space. A true mind-broadening experience. more
Congratulations. You have successfully defended your PhD dissertation, and it was a defining moment in your life. Your professorial experience and teaching assistant credentials are finally going to pay off. Further, you might have hundreds of citations, and PhDs are sought after because of their subject matter expertise. Well, that is OK. All that hard work and discipline allows you to use your newly earned moniker and seek out additional opportunities, either within the scope of academia or corporate options. Wait, Wait, Wait, not so fast. If you are thinking of just strolling into the industry and immediately begin earning a six-figure salary, think again, my friend. more
When did the Internet begin? It all gets a bit hazy after so many years, but by the early 1970s, research work in packet-switched networks was well underway, and while it wasn't running TCP at the time (the flag day when the ARPANET switched over to use TCP was not until 1 January 1983) but there was the base datagram internet protocol running in the early research ARPA network in the US. Given that this is now around 50 years ago, and given that so much has happened in the last 50 years, what does the next 50 years have in store? more
Would you like to help guide the future of the Mutually Agreed Norms for Routing Security (MANRS) initiative? As the MANRS community continues to develop new efforts to make the routing layer of the Internet more secure (ex. the equipment vendor program), would you like to help lead the work? The MANRS community is seeking volunteers for its new Steering Committee. The committee will lead the community as it evolves its governance model. more
Recently I was asked by a customer how they can easily set up rollback capabilities on the endpoints in their corporate network. They had seen the marketing hype by various security technology providers that their products included rollback capabilities they could utilize if/when one of their workstations or servers was infected by malware. Having gotten this question more than once, I thought it would be a good subject to share with a broader audience. more
It was only a few weeks back, in July of this year, where I remarked that an Akamai report of an outage was unusual for this industry. It was unusual in that it was informative in detailing their understanding of the root cause of the problem, describing the response that they performed to rectify the immediate problem, the measures being undertaken to prevent a recurrence of this issue, and the longer-term measures to improve the monitoring and alerting processes used within their platform. more
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