In the final video of this series on data center fabrics, Russ White walks through a set of considerations you might want to ponder as you design your data center fabric. These considerations include whether to single-home or dual-home a server in a fabric (it depends!), why Russ isn’t a fan of MLAGs in a […]
The post Understanding Data Center Fabrics 09: Other Considerations – Video appeared first on Packet Pushers.
Fantastical Openings can’t replace Calendly for my scheduling needs yet, but it’s close.
I use Calendly so that folks can schedule me for appointments. I send people a Calendly link, and they choose an available time slot. Calendly creates calendar invitations and sends them to me and the requestor. Calendly also integrates with Zoom, so that an invite comes with a Zoom meeting already attached.
In my years of Calendly use, I’ve found it to be…
I also use Fantastical by Flexibits. In my few months as a Fantastical user, I’ve found it to be…
On Friday, March 25, 2022, Google published an emergency security update for all Chromium-based web browsers to patch a high severity vulnerability (CVE-2022-1096). At the time of writing, the specifics of the vulnerability are restricted until the majority of users have patched their local browsers.
It is important everyone takes a moment to update their local web browser. It’s one quick and easy action everyone can contribute to the cybersecurity posture of their team.
Even if everyone updated their browser straight away, this remains a reactive measure to a threat that existed before the update was available. Let’s explore how Cloudflare takes a proactive approach by mitigating the impact of zero day browser threats with our zero trust and remote browser isolation services. Cloudflare’s remote browser isolation service is built from the ground up to protect against zero day threats, and all remote browsers on our global network have already been patched.
Cloudflare Zero Trust applies a layered defense strategy to protect users from zero day threats while browsing the Internet:
As we enter 2022, there is much discussion on the “post-pandemic” world of campus and how it’s changing. Undoubtedly, the legacy 2000 era campus was mired in complexity, with proprietary features, siloed designs, and fragile software ripe for change. This oversubscribed campus is riddled with challenges, including critical outages causing risk-adverse behaviors and labor-intensive roll-outs hampering improvements. The future of the campus has changed as the lines between corporate headquarters, home, remote and transit workers are blurring and creating distributed workspaces. Before the pandemic, the most common network designs were rigidly hierarchical. They were based upon a manual model developed in the mid-1990s. As the demand for scale increased, the end user experience was degraded and the cost per connected host continued to escalate.
Are we ready to evolve the legacy campus to a new cognitive edge for the new and dispersed class of users, devices and IoT/OT? I think so and the time to recalibrate and redesign the campus is now!
The 94th Academy Awards happened this past Sunday, March 27, 2022. In the global event we got to see several Oscars attributed to winners like CODA, Jane Campion (the director of The Power of the Dog) and also Dune (which won six Oscars), but also moments that had a clear impact in the Internet traffic, like the altercation on stage between Will Smith and Chris Rock.
Cloudflare Radar uses a variety of sources to provide aggregate information about Internet traffic and attack trends. In this blog post, we will use DNS name resolution data as a proxy for traffic to Internet services, as we did for the Super Bowl LVI.
The baseline value for the charts (that are only focused on the US) was calculated by taking the mean DNS traffic level for the associated Internet services between 08:00 - 12:00 PST on Sunday (March 27, 2022) — usually we use UTC, but we chose to use Los Angeles time as that’s where the event took place.
The event started with Beyoncé singing at 17:00 PST and ended at around 20:30. In terms of growth in traffic, the start of the show didn’t show much for social media, although TikTok Continue reading
A week ago I described how Cisco IOS implemented BGP Labeled Unicast. In this blog post we’ll focus on Arista EOS using the same lab as before:
BGP sessions in the BGP-LU lab
A week ago I described how Cisco IOS implemented BGP Labeled Unicast. In this blog post we’ll focus on Arista EOS using the same lab as before:
BGP sessions in the BGP-LU lab
Today on the Tech Bytes podcast we’re sponsored by Palo Alto Networks, which is expanding its cloud partnership by integrating with Azure to help customers achieve a multicloud strategy.
The post Tech Bytes: Achieve SD-WAN Multicloud With Palo Alto Networks And Azure (Sponsored) appeared first on Packet Pushers.
It is the nature of capability class supercomputers to try to push the envelope on as many different architectural fronts as possible. …
Early Frontier Supercomputer Tests Show Decent Performance Leaps was written by Timothy Prickett Morgan at The Next Platform.
At the most basic level, there are only three BGP policies: pushing traffic through a specific exit point; pulling traffic through a specific entry point; preventing a remote AS (more than one AS hop away) from transiting your AS to reach a specific destination. In this series I’m going to discuss different reasons for these kinds of policies, and different ways to implement them in interdomain BGP.
There are many reasons an operator might want to select which neighboring AS through which to send traffic towards a given reachable destination (for instance, 100::/64). Each of these examples assumes the AS in question has learned multiple paths towards 100::/64, one from each peer, and must choose one of the two available paths to forward along.
In the following network—
From AS65001’s perspective
Assume AS65001 is some form of content provider, which means it offers some service such as bare metal compute, cloud services, search engines, social media, etc. Customers from AS65006 are connecting to its servers, located on the 100::/64 network, which generates a large amount of traffic returning to the customers.
From the perspective of AS hops, it appears the path from AS65001 to AS65006 is the same length—if this Continue reading
The Red Hat Ansible Certified Content Collection for ServiceNow helps you create automated workflows targeting IT service management (ITSM) tasks faster while establishing and maintaining a single source of truth in the ServiceNow configuration management database (CMDB). In this blog, I’ll share the latest features we’ve added to the Collection, and you can find additional resources about existing features at the end of this blog.
We’ve added three major updates to the Red Hat Ansible Certified Content Collection for ServiceNow:
Let’s take a closer look at each of these.
A new feature in ServiceNow Collection introduces a new inventory functionality, called “enhanced inventory”, which provides the ability to create groups based on CMDB relationships. Previous versions of the inventory plugin allowed us to create predefined groups, such as the “Linux Red Hat” and “Windows XP” examples shown here:
---
plugin: servicenow.itsm.now
query:
- os: = Linux Red Hat
- os: = Windows XP
keyed_groups:
- key: os
prefix: os
Inspecting the inventory collected using the above configuration results in:
ansible-inventory -i inventory.now.yaml --graph` output:
|--@os_Linux_Red_Hat:
Continue reading