Mininet, ONOS, and segment routing

Leaf and spine traffic engineering using segment routing and SDN and CORD: Open-source spine-leaf Fabric describe a demonstration at the 2015 Open Networking Summit using the ONOS SDN controller and a physical network of 8 switches.

This article will describe how to emulate a leaf and spine network using Mininet and configure the ONOS segment routing application to provide equal cost multi-path (ECMP) routing of flows across the fabric. The Mininet Dashboard application running on the sFlow-RT real-time analytics platform is used to provide visibility into traffic flows across the emulated network.

First, run ONOS using Docker:
docker run --name onos --rm -p 6653:6653 -p 8181:8181 -d onosproject/onos
Use the graphical interface, http://onos:8181, to enable the OpenFlow Provider Suite, Network Config Host Provider, Network Config Link Provider, and Segment Routing applications. The screen shot above shows the resulting set of enabled services.

Next, install sFlow-RT and the Mininet Dashboard application on host with Mininet:
wget https://inmon.com/products/sFlow-RT/sflow-rt.tar.gz
tar -xvzf sflow-rt.tar.gz
./sflow-rt/get-app.sh sflow-rt mininet-dashboard
Start sFlow-RT:
./sflow-rt/start.sh
Download the sr.py script:
wget https://raw.githubusercontent.com/sflow-rt/onos-sr/master/sr.py
Start Mininet:
sudo env ONOS=10.0.0.73 mn --custom sr.py,sflow-rt/extras/sflow.py \
--link  Continue reading

Download Malwarebytes Today and Protect Your Data for Free

Everyone lives on the internet, period. Whether you’re streaming a standup special on Netflix, answering emails from your boss, chatting on Tinder, or completing everyday errands like paying bills online, you’re likely spending most of your day tangled up in the world wide web. Unfortunately, that makes you a high-risk candidate for a cyber attack at some point along the way, be it through malware, phishing, or hacking. Best-case scenario, it sucks up your time to fix (or your money by paying someone else to fix it). Worst case scenario, it puts you and your computer out of commission for days and damages your files beyond repair. Not to mention the sheer terror of knowing some hacker has complete and total access to virtually everything about you, including all of your banking and credit card information. Malwarebytes is a free program built to help you avoid the above scenarios altogether — and it makes traditional antivirus look old, tired, and played out (seriously it’s free, download it here).To read this article in full, please click here

Download Malwarebytes Today and Protect Your Data for Free

Everyone lives on the internet, period. Whether you’re streaming a standup special on Netflix, answering emails from your boss, chatting on Tinder, or completing everyday errands like paying bills online, you’re likely spending most of your day tangled up in the world wide web. Unfortunately, that makes you a high-risk candidate for a cyber attack at some point along the way, be it through malware, phishing, or hacking. Best-case scenario, it sucks up your time to fix (or your money by paying someone else to fix it). Worst case scenario, it puts you and your computer out of commission for days and damages your files beyond repair. Not to mention the sheer terror of knowing some hacker has complete and total access to virtually everything about you, including all of your banking and credit card information. Malwarebytes is a free program built to help you avoid the above scenarios altogether — and it makes traditional antivirus look old, tired, and played out (seriously it’s free, download it here).To read this article in full, please click here

Intent Based Networking , Is it the next big thing ?

Nowadays there are some technologies which every vendor talk about. SD-WAN is very hot topic but another one is Intent Based Networking.      There is always ‘ next big thing ‘ in networking. You might hear different terms , such as Self Driven Networking , Intent Driven Networking , Intent Based networking. Indeed, all […]

The post Intent Based Networking , Is it the next big thing ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

In Azacualpa, Honduras: “Smart Communities” Help Preserve Collective Memory

Access to the Internet can change people’s lives for the better. This is particularly true when communities take ownership of that access and take full advantage of it to improve their quality of life. This has been the case in the community of Azacualpa, a village in Intibucá in Honduras.

In Azacualpa, the members of the community took on the task of developing and implementing the project “Smart Communities” in order to reduce the digital divide – and preserve their collective memory. The project, which is part of the Internet Society’s Beyond the Net program, finds its origin in “Radio Azacualpa – The Voice of Women,” a community radio station that started in 2017.

By 2018, Smart Communities expanded its reach by impacting the nearly 400 families that inhabit the Azacualpa Valley. To achieve its objectives, the team divided the tasks into three main groups: administrative aspects, project governance, and technical aspects. The three working groups were accompanied by the Honduras Chapter of the Internet Society and the organization Sustainable Development Network Honduras (RDS-HN).

The participation of the community was fundamental. In addition to promoting a consultation with the community, the project facilitators promoted training in communications so that community Continue reading

RHEL 8 Beta arrives with application streams and more

The leading enterprise Linux platform is now available in a new and highly innovative Beta release. Among other highlights that promise a transformation of business IT well into the future, Red Hat Enterprise Linux 8 Beta: Introduces application streams separating user space packages from core kernel operations and making it easier to update user packages without requiring major version updates of the OS itself. Provides security updates with both OpenSSL 1.1.1 and TLS 1.3 supported. Includes Composer to make it easier for both new and experienced Red Hat Enterprise Linux users to build and deploy custom images across the hybrid cloud. Adds Stratis — a new volume-management file system that is faster, more efficient and easier to manage than its predecessors. Much of the impetus for RHEL 8 has been the growing need for a common foundation that can span every IT stronghold from the data center to multiple public clouds and make application delivery a lot more manageable. Four years have passed since RHEL 7 came our way, and so much has changed in the world of IT since then, with continued virtualization and containerization along with a growing need for rapid deployment.To read Continue reading

Docker and MuleSoft Partner to Accelerate Innovation for Enterprises

A convergence of forces in SaaS, IoT, cloud, and mobile have placed unprecedented requirements on businesses to accelerate innovation to meet those rapidly changing preferences. The big don’t eat the small, the fast eat the slow.

The industry has offered several solutions to this acceleration problem – from working harder to outsourcing and devops, but none of those solutions have really offered the levels of acceleration needed. The reason: there is too much friction slowing the art of the possible.

Docker and MuleSoft remove friction in the innovation process, from ideation all the way to deployment. MuleSoft provides a tops down architectural approach, with API-first design and implementation. The Docker approach is bottoms up from the perspective of the application workload with containerization, to both modernize traditional applications and create of new applications.  

Marrying those two approaches combined with the platform, tools and methodology, enable both organizations to help your business accelerate faster than ever before. Docker and MuleSoft bridge the chasm between infrastructure and services in a way never before achieved in the industry.

Together, Docker and MuleSoft accelerate legacy application modernization and new application delivery while reducing IT complexity and costs.

Intent Based Networking , Is it the next big thing ?

Nowadays there are some technologies which every vendor talk about. SD-WAN is very hot topic but another one is Intent Based Networking.      There is always ‘ next big thing ‘ in networking. You might hear different terms , such as Self Driven Networking , Intent Driven Networking , Intent Based networking. Indeed, all …

Continue reading "Intent Based Networking , Is it the next big thing ?"

The post Intent Based Networking , Is it the next big thing ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

Intent Based Networking , Is it the next big thing ?

Nowadays there are some technologies which every vendor talk about. SD-WAN is very hot topic but another one is Intent Based Networking.      There is always ‘ next big thing ‘ in networking. You might hear different terms , such as Self Driven Networking , Intent Driven Networking , Intent Based networking. Indeed, all …

Continue reading "Intent Based Networking , Is it the next big thing ?"

The post Intent Based Networking , Is it the next big thing ? appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

New: The Datacenter as a Computer: Designing Warehouse-Scale Machines, Third Edition

 

Five years ago when Google published The Datacenter as a Computer: Designing Warehouse-Scale Machines it was a manifesto declaring the world of computing had changed forever. Hop aboard or be left behind at the station. Since then the world has chosen to ride along with Google.

The world is still changing, so Google published a new edition: The Datacenter as a Computer: Designing Warehouse-Scale Machines, Third Edition.

What's different?

The third edition reflects four years of advancements since the previous edition and nearly doubles the number of pictures and figures. New topics range from additional workloads like video streaming, machine learning, and public cloud to specialized silicon accelerators, storage and network building blocks, and a revised discussion of data center power and cooling, and uptime. Further discussions of emerging trends and opportunities ensure that this revised edition will remain an essential resource for educators and professionals working on the next generation of WSCs.

The abstract:

This book describes warehouse-scale computers (WSCs), the computing platforms that power cloud computing and all the great web services we use every day. It discusses how these new systems treat the datacenter itself as one massive computer designed at warehouse scale, with hardware and Continue reading
1 … 1,390 1,391 1,392 1,393 1,394 … 3,832