In Never-Ending Story of IP Fragmentation I described how you could use TCP Maximum Segment Size to minimize the impact of IP fragmentation and PMTUD blackholes (more details on TCP MSS clamping)… but one has to wonder how people use TCP MSS in the wild and what values you might see.
As is often the case, Geoff Houston found a way to measure them, and published the answer: TCP MSS Values
AT&T CEO Randall Stephenson described the series of demands made by an activist investor...
The new valuation inches the company closer to the $7.5 billion Microsoft spent to acquire rival...
After a longer break, I managed to get back to my small visualization experiment from last time, and improve it a little. Firstly, the NETCONF interface was switched for a more standard SNMP one, even if that is not as cutting edge anymore.
So without keeping you waiting, here is firs the visualization example, as you can see I was playing here a little and got inspired by the Mischief-makers map from Harry Potter. Of course if you do not like the visuals just re-do the CSS to get rid of it.
Also, this time I made the code public using the much more common github.com here.
Once you download this project from github, you will find several files in the directory, your starting point are the two configuration files called:
Lets start with the config.ini, which is much smaller. Here is an example.
[DEFAULT] SnmpVersion = 2c SnmpCommunityString Continue reading
VMworld US 2019 has come to a close. If you didn’t attend, don’t worry as we still have VMworld Europe right around the corner. Join us November 4-7, 2019 to hear experts discuss cloud, networking and security, digital workspace, digital trends and more! Register for VMworld Europe now.
Below is a quick recap and resources to check out from VMworld US 2019.
Congratulations to our NSX Intelligence team: Anirban Sengupta, Umesh Mahajan, Farzad Ghannadian, Kausum Kumar, Catherine Fan and Ray Budavari.
Surprise guest Michael Dell stopped by the Solutions Exchange to check out demos of what’s new from the networking and security business unit demoed by Chris McCain.
Below is a list of sessions that jump into the NSX Continue reading
This means VMware’s software stack will now run on all major public clouds including AWS, Azure,...
Cloudian announced the launch of Edgematrix, its edge analytics platform that will use HyperStore...
Arista announced a bevy of upgrades to the company's management plane software, including support...
The operator is no stranger to early adoption — it previously laid claim to the world’s first...
Since its establishment nine years ago, the Internet Society Sri Lanka Chapter has been a key stakeholder in ensuring a free, open, and safe Internet in Sri Lanka.
During the 2018 religious riots and the 2019 Easter bombings in Sri Lanka, when access to social media networks and messaging services was blocked, the Sri Lanka Chapter worked closely with government, media, academia, the private sector, and the general public to inform them about the impact of such restrictions on the Internet. In the aftermath of the 2018 religious riots, the Sri Lanka Chapter issued an appeal letter to the Presidential Secretariat on behalf of Internet Society members in Sri Lanka to lift the social media ban. Earlier this year, after the Easter bombings, the Sri Lanka Chapter organized an online meeting to engage in dialogue with different groups, including government and media agencies, informing them about the wide-ranging economic and social consequences of Internet restrictions, and raising the awareness that preventing online access is rarely an effective solution to conflicts and unrest.
In the attempt to control the spread of misinformation and hate speech, and cut off communications between organizers of attacks, the Internet restrictions also prevented people from connecting Continue reading
Searing speech from dana boyd. How she keeps on going is amazing to me.
The post Facing the Great Reckoning Head-On – danah boyd – Medium appeared first on EtherealMind.
The most recent update to Wrangler, version 1.3.1, introduces important new features for developers building Cloudflare Workers — from built-in deployment environments to first class support for Workers KV. Wrangler is Cloudflare’s first officially supported CLI. Branching into this field of software has been a novel experience for us engineers and product folks on the Cloudflare Workers team.
As part of the 1.3.1 release, the folks on the Workers Developer Experience team dove into the thought process that goes into building out features for a CLI and thinking like users. Because while we wish building a CLI were as easy as our teammate Avery tweeted...
… it brings design challenges that many of us have never encountered. To overcome these challenges successfully requires deep empathy for users across the entire team, as well as the ability to address ambiguous questions related to how developers write Workers.
Our new KV functionality introduced a host of new features, from creating KV Continue reading
For the last five or six years, I’ve not really done any networking and have focussed on software, automation and the mechanisation of processes so that they may be manifested as network driving workflows. I try to keep up with networking technology and working for Juniper has really made me level up in this aspect. I’m lucky to be surrounded by an army of real experts and it’s humbling. What’s still a thorn in my side is the beginner expert community around automation, and I’m working to bring awareness to this through providing questions and insight with methodologies to bootstrap the journey. More on that another time. This paragraph is to position some emotions for what’s about to follow!
To get to the crux of this post, now shift your view to your every day life. How many times a day does an app crash on your phone, laptop or tablet? When was the last time a feature wasn’t available on your TV because you didn’t upgrade to the latest version of software? Right at the beginning of my career, I worked in real time electronics. Machinery that should not die randomly, or just become obsolete because of the hardware Continue reading
As legacy applications evolveto the cloud, hosted and multi cloud architectures blending on-premises data and applications with elastic scale-out and rapidly deployed cloud capabilities, legacy networking tools have been challenged causing them to become cumbersome and unreliable. The shift to cloud native architectures with containers, serverless instances and edge IoT sensors feeding in critical data, has significantly increased the number of devices that need to be managed. Meanwhile shrinking the amount of time available for provisioning, upgrades and change controls has become an issue.