Is It Time to Replace TCP in Data Centers?
One of my readers asked for my opinion about the provocative “It’s Time to Replace TCP in the Datacenter” article by prof. John Ousterhout. I started reading it, found too many things that didn’t make sense, and decided to ignore it as another attempt of a proverbial physicist solving hard problems in someone else’s field.
However, pointers to that article kept popping up, and I eventually realized it was a position paper in a long-term process that included conference talks, interviews and keynote speeches, so I decided to take another look at the technical details.
BGP in 2022 – BNGP Updates
The first part of this report looked at the size of the routing table and looked at some projections of its growth for both IPv4 and IPv6. However, the scalability of BGP as the Internet’s routing protocol is not just dependant on the number of prefixes carried in the routing table. Dynamic routing updates are also part of this story. If the update rate of BGP is growing faster than we can deploy processing capability to match then the routing system will lose coherence, and at that point the network will head into periods of instability. This second part of the report will look at the profile of BGP updates across 2022 to assess whether the stability of the routing system, as measured by the level of BGP update activity, is changing.Carefully Considering Wi-Fi 6E Versus Private Cellular
It’s not as much a competition between Wi-Fi 6E and private cellular but rather an understanding which technology best supports the essential use cases, applications, and the respective security and QoS requirements.Network Break 412: IT Spending, ChatGPT, Cloud Repatriation And Other 2023 IT Speculations
Take a Network Break! For our first show of 2023 we skip the news to spend some time speculating on technologies and trends that may influence IT and networking in the coming year, including the influence of AI, machine learning, and ChatGPT in tech; data center network automation; cloud repatriation; and more.
The post Network Break 412: IT Spending, ChatGPT, Cloud Repatriation And Other 2023 IT Speculations appeared first on Packet Pushers.
Network Break 412: IT Spending, ChatGPT, Cloud Repatriation And Other 2023 IT Speculations
Take a Network Break! For our first show of 2023 we skip the news to spend some time speculating on technologies and trends that may influence IT and networking in the coming year, including the influence of AI, machine learning, and ChatGPT in tech; data center network automation; cloud repatriation; and more.Organise Efficiently with Zapier — Dropbox / S3 / Sheets— Integration to organise scanned documents and important attachments
One biggest problem with my google drive is that it’s flooded with a lot of documents, images and everything which seems really important during that instant of time with names which are almost impossible to search later.
I tried various Google APIs and Python programs with Oauth2.0 and its integration is, not something easy and needs tinkering for the OAuth consent page.
I wanted something easier, a workflow when I scan documents in the scanner-pro app on IPAD/iPhone and upload them to storage it should then be organised with certain rules which can be easily searchable and also listable. What I mean by listable is that I need some sort of Google Sheet integration which can just enter the filename and date once it’s uploaded to S3.
When there is an excel sheet even if the search is available it gives me so much pleasure to fire up pandas and analyse or search for it, just makes me happy
Note: I am a Paid user of Zapier and using S3 is a premium app, Am not an advertiser for Zapier in any way, I found the service useful
Moving on, here is the workflow
Weave your own global, private, virtual Zero Trust network on Cloudflare with WARP-to-WARP
Millions of users rely on Cloudflare WARP to connect to the Internet through Cloudflare’s network. Individuals download the mobile or desktop application and rely on the Wireguard-based tunnel to make their browser faster and more private. Thousands of enterprises trust Cloudflare WARP to connect employees to our Secure Web Gateway and other Zero Trust services as they navigate the Internet.
We’ve heard from both groups of users that they also want to connect to other devices running WARP. Teams can build a private network on Cloudflare’s network today by connecting WARP on one side to a Cloudflare Tunnel, GRE tunnels, or IPSec tunnels on the other end. However, what if both devices already run WARP?
Starting today, we’re excited to make it even easier to build a network on Cloudflare with the launch of WARP-to-WARP connectivity. With a single click, any device running WARP in your organization can reach any other device running WARP. Developers can connect to a teammate's machine to test a web server. Administrators can reach employee devices to troubleshoot issues. The feature works with our existing private network on-ramps, like the tunnel options listed above. All with Zero Trust rules built in.
Introducing Digital Experience Monitoring
This post is also available in 简体中文, 日本語, Français and Español.
Today, organizations of all shapes and sizes lack visibility and insight into the digital experiences of their end-users. This often leaves IT and network administrators feeling vulnerable to issues beyond their control which hinder productivity across their organization. When issues inevitably arise, teams are left with a finger-pointing exercise. They’re unsure if the root cause lies within the first, middle or last mile and are forced to file a ticket for the respective owners of each. Ideally, each team sprints into investigation to find the needle in the haystack. However, once each side has exhausted all resources, they once again finger point upstream. To help solve this problem, we’re building a new product, Digital Experience Monitoring, which will enable administrators to pinpoint and resolve issues impacting end-user connectivity and performance.
To get started, sign up to receive early access. If you’re interested in learning more about how it works and what else we will be launching in the near future, keep scrolling.
Our vision
Over the last year, we’ve received an overwhelming amount of feedback that users want to see the intelligence that Cloudflare possesses from our Continue reading
Cloudflare is faster than Zscaler
Every Innovation Week, Cloudflare looks at our network’s performance versus our competitors. In past weeks, we’ve focused on how much faster we are compared to reverse proxies like Akamai, or platforms that sell edge compute that compares to our Supercloud, like Fastly and AWS. For CIO Week, we want to show you how our network stacks up against competitors that offer forward proxy services. These products are part of our Zero Trust platform, which helps secure applications and Internet experiences out to the public Internet, as opposed to our reverse proxy which protects your websites from outside users.
We’ve run a series of tests comparing our Zero Trust services with Zscaler. We’ve compared our ZT Application protection product Cloudflare Access against Zscaler Private Access (ZPA). We’ve compared our Secure Web Gateway, Cloudflare Gateway, against Zscaler Internet Access (ZIA), and finally our Remote Browser Isolation product, Cloudflare Browser Isolation, against Zscaler Cloud Browser Isolation. We’ve found that Cloudflare Gateway is 58% faster than ZIA in our tests, Cloudflare Access is 38% faster than ZPA worldwide, and Cloudflare Browser Isolation is 45% faster than Zscaler Cloud Browser Isolation worldwide. For each of these tests, we used 95th percentile Time to First Byte Continue reading
Bring your own certificates to Cloudflare Gateway
Today, we’re announcing support for customer provided certificates to give flexibility and ease of deployment options when using Cloudflare’s Zero Trust platform. Using custom certificates, IT and Security administrators can now “bring-their-own” certificates instead of being required to use a Cloudflare-provided certificate to apply HTTP, DNS, CASB, DLP, RBI and other filtering policies.
The new custom certificate approach will exist alongside the method Cloudflare Zero Trust administrators are already used to: installing Cloudflare’s own certificate to enable traffic inspection and forward proxy controls. Both approaches have advantages, but providing them both enables organizations to find the path to security modernization that makes the most sense for them.
Custom user side certificates
When deploying new security services, organizations may prefer to use their own custom certificates for a few common reasons. Some value the privacy of controlling which certificates are deployed. Others have already deployed custom certificates to their device fleet because they may bind user attributes to these certificates or use them for internal-only domains.
So, it can be easier and faster to apply additional security controls around what administrators have deployed already–versus installing additional certificates.
To get started using your own certificate first upload your root certificates via API Continue reading
Tier 1 Carriers Performance Report: December, 2022
The report offers specific insights into the performance of major Internet Carriers for the month of December, 2022.
The post Tier 1 Carriers Performance Report: December, 2022 appeared first on Noction.
netlab Release 1.4.2: Juniper vMX and Junos Features
One of the last things I did before going on the Christmas break was to push out netlab release 1.4.2. Its highlights include:
- Juniper vMX by Stefano Sasso
- BFD, VRF, MPLS, SR-MPLS, and MPLS/VPN on Junos (also by Stefano)
- Full VLAN support on vMX and routed VLAN interfaces on vSRX (yet again, Stefano’s contribution)
- VyOS containerlab support by Oleg A. Arkhangelsky
- CSR 1000v VLAN and VXLAN support
Upgrading is as easy as ever: execute pip3 install --upgrade networklab.
New to netlab? Start with the Getting Started document and the installation guide.
Automation 20. GNMI to Spreadsheet via Pandas or Intro to Data Analysis in Network Automation
Dear friend,
We all like spreadsheets, as this is an easy and intuitive way of representing data for us, humans. The possibility to analyze data with spreadsheets are endless, starting from simple aggregation till complicated pivots are endless. Even the people who say that they don’t like spreadsheets, use them so often. Network automation, for sure, is not an exclusion here.
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retrieval system, or transmitted in any form or by any
means, electronic, mechanical or photocopying, recording,
or otherwise, for commercial purposes without the
prior permission of the author.
Are Spreadsheets Valid In Automation Era?
They absolutely are. We haven’t seen so far any non-IT person, or even IT high-profile engineer or manager, which won’t like spreadsheets. To put it simple, spreadsheets can be an easy way to represent data collected from network devices; likewise, it can be a good way to provide some input, either as inventory or as configuration details for your network automation intent. So the questions becomes, provided you can read data from your spreadsheet in a programmatic way, what would you do with it?
The good news is that Continue reading