Veriflow Brings Intent-Based Networking Verification to the Cloud
The updated platform can infer business goals with no input from the user.
The updated platform can infer business goals with no input from the user.
Microsoft is getting ready for the next big update for Windows Server (check out today’s complimentary Microsoft blog post) and some of the new features are very exciting for Docker users. One of the most important enhancements is that Docker can now run Linux containers on Windows, using Hyper-V technology.
Running Docker Linux containers on Windows requires a minimal Linux kernel and userland to host the container processes. This is exactly what the LinuxKit toolkit was designed for: creating secure, lean and portable Linux subsystems that can provide Linux container functionality as a component of a container platform.
We’ve been busy prototyping LinuxKit support for Docker Linux containers on Windows and have a working preview for you to try. This is still a work in progress, and requires either the recently announced “Windows Server Insider” or Windows 10 Insider builds.
The instructions below have been tested on Windows 10 and Windows Server Insider builds 16278 and 16281.
Be sure to install Docker for Windows (Windows 10) or Docker Enterprise Edition (Windows Server Insider) before starting.
A preview build of LinuxKit is available by simply running Continue reading
Makers of tightly coupled, shared memory machines can make all of the arguments they want about how it is much more efficient and easier to program these NUMA machines than it is to do distributed computing across a cluster of more loosely coupled boxes, but for the most part, the IT market doesn’t care.
Distributed computing, in its more modern implementation of frameworks running on virtual machines or containers – or both – is by far the norm, both in the datacenter and on the public clouds. You don’t have to look any further than the latest server sales statistics …
Custom Server Makers Set The Datacenter Pace was written by Timothy Prickett Morgan at The Next Platform.
The post Worth Reading: Global content removals appeared first on rule 11 reader.
Daniel Walton joins Network Collective for a second time to discuss the problem of churn in BGP routing tables, the steps taken to solve this problem, and the addition of add-path to the BGP protocol.
RFC 7911: Advertisement of Multiple Paths in BGP
RFC 3345: (Informational) Border Gateway Protocol (BGP) Persistent Route Oscillation Condition
Daniel Walton’s Presentation from NANOG 21 on BGP Churn
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
The post History Of Networking – Daniel Walton – BGP Churn And Add-Paths appeared first on Network Collective.
Daniel Walton joins Network Collective for a second time to discuss the problem of churn in BGP routing tables, the steps taken to solve this problem, and the addition of add-path to the BGP protocol.
RFC 7911: Advertisement of Multiple Paths in BGP
RFC 3345: (Informational) Border Gateway Protocol (BGP) Persistent Route Oscillation Condition
Daniel Walton’s Presentation from NANOG 21 on BGP Churn
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
The post History Of Networking – Daniel Walton – BGP Churn And Add-Paths appeared first on Network Collective.
Financial benefits of network virtualization tied to OpEx savings ahead of CapEx.
The Internet Society’s story has been 25 years in the making.
The foundation for a global community of people dedicated to bringing the Internet to everyone started in 1992. We have come a long way since then, and today our mission has never been more important or challenging.
This milestone year presents a unique opportunity for us all to reflect on our rich heritage, and to consider how we can impact the Internet for the next 25 years. Our community has a critical role in guiding the decisions that must now be taken for the future Internet in today’s rapidly changing world.
This September, to commemorate the Internet Society’s 25th anniversary, we’d like you to join in a series of global celebrations to inspire the world to take action in shaping tomorrow and in ensuring that the Internet remains a positive force for future generations. We will honor innovators and visionaries who advanced the early Internet at our 2017 Internet Hall of Fame ceremony. We will also recognize 25 under 25 next generation leaders who are using the Internet to make a difference for their communities and beyond.
After 18 months of research, we will launch The 2017 Internet Society Continue reading
Comcast Business recently launched an SD-WAN offering for distributed enterprises based on its new, virtualized ActiveCoresm platform, which leverages the agility of software-defined networking to enable better application performance, centralized network policy management and more effective cost controls. Comcast is the first cable company to introduce a carrier-grade, SD-WAN offering for multisite businesses, and is... Read more →
What does P router mean in MPLS ? It is used in MPLS VPN networks mostly but can be used with any MPLS application, use case. This is very important node in MPLS, and crucial to understand MPLS. MPLS is one of the most commonly used encapsulation mechanism in Service Provider networks […]
The post What does P router mean in MPLS ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Recently we released a new version of Docker Enterprise Edition featuring expansion of the multi-architecture capabilities from Linux to Windows Server and now the IBM Z mainframe platform. Enterprise IT architecture is complex and diverse and include workloads across different server hardware types and operating systems.
Docker and IBM have partnered together to deliver the support for Red Hat Enterprise Linux, Ubuntu and SUSE Linux Enterprise Server for IBM Z (x390x) systems as certified infrastructure for Docker Enterprise Edition. This first release features support for the the IBM Z product family.
Why bring Docker containers and mainframe systems together? Enterprises across industries like financial services, government, manufacturing and more use mainframe systems for many high throughput applications. Many organizations recognize that these applications are at the core of their systems but rewriting and refactoring them for a different platform is expensive and time-consuming. By wrapping them in a container, organizations can make these applications easier to maintain and update while bringing them into the same software supply chain as other x86 applications
Multi-Architecture Support for Mainframe Systems
Docker Enterprise Edition allows for the same orchestration, security model, supply chain and integrated management that can be applied across a broader range Continue reading
Here are some tips for evaluating your cloud storage options.
A common way to establish an IPsec tunnel on Linux is to use an IKE daemon, like the one from the strongSwan project, with a minimal configuration1:
conn V2-1 left = 2001:db8:1::1 leftsubnet = 2001:db8:a1::/64 right = 2001:db8:2::1 rightsubnet = 2001:db8:a2::/64 authby = psk auto = start
The same configuration can be used on both sides. Each side will figure out if
it is “left” or “right”. The IPsec site-to-site tunnel endpoints are
2001:db8:1::1 and 2001:db8:2::1. The protected subnets are
2001:db8:a1::/64 and 2001:db8:a2::/64. As a result, strongSwan
configures the following policies in the kernel:
$ ip xfrm policy src 2001:db8:a1::/64 dst 2001:db8:a2::/64 dir out priority 399999 ptype main tmpl src 2001:db8:1::1 dst 2001:db8:2::1 proto esp reqid 4 mode tunnel src 2001:db8:a2::/64 dst 2001:db8:a1::/64 dir fwd priority 399999 ptype main tmpl src 2001:db8:2::1 dst 2001:db8:1::1 proto esp reqid 4 mode tunnel src 2001:db8:a2::/64 dst 2001:db8:a1::/64 dir in priority 399999 ptype main tmpl src 2001:db8:2::1 dst 2001:db8:1::1 proto esp reqid 4 mode tunnel […]
This kind of IPsec tunnel is a policy-based VPN: encapsulation and decapsulation are governed by these policies. Each of them contains the following elements:
out, in or fwd2),