Years ago Petr Lapukhov decided that it’s a waste of time to try to make OSPF or IS-IS work in large-scale data center leaf-and-spine fabrics and figured out how to use BGP as a better IGP.
In the meantime, old-time routing gurus started designing routing protocols targeting a specific environment: highly meshed leaf-and-spine fabrics. First in the list: Routing in Fat Trees (RIFT).
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sudo mn --custom=sflow-rt/extras/sflow.py --link tc,bw=10 \
--topo torus,3,3 --switch ovsbr,stp=1 --test iperf
sudo mn --custom sflow-rt/extras/sflow.py --link tc,bw=10 \
--topo tree,depth=4,fanout=2 --test iperf
sudo mn --custom sflow-rt/extras/sflow.py --link tc,bw=10 \It's also easy to create Custom Topologies. The following command creates the example custom topology, topo-2sw-2host.py, that ships with Mininet:
--topo linear,4 --test iperf
sudo mn --custom ~/mininet/custom/topo-2sw-2host.py,sflow-rt/extras/sflow.py Continue reading
Unfortunately for vendors, they don’t have the luxury of sitting on stage and defending their point of view. But vendors aren’t going to provide products based on open source unless there’s money to be made.
The Asia Pacific Regional Internet Conference on Operational Technologies (APRICOT) is an annual event that brings together Internet engineers and networking experts, government representatives, Internet business leaders, and other interested parties from around the world to learn from training workshops and tutorials, attend technical presentations, discuss policies, and extend social and professional networks with like-minded peers. This year’s event was held in Kathmandu, Nepal from 19-28 February.
The Internet Society Asia-Pacific Bureau has a long-term partnership with APRICOT and proudly sponsors its fellowship program, providing financial support for individuals from developing economies to attend the event, and to contribute to discussions about Internet operations, technologies and development. This year the Internet Society sponsored a total of 13 fellows to APRICOT 2018, split between the technical workshops and the conference week, depending on their areas of interest. 75% of these fellows were females, endorsing our focus to inspire and facilitate the participation of women in the technology sector and to #ShineTheLight!
We had an opportunity to meet some of these fellows, to know more about them and their experience as a fellow.
Athirah Rosli is a Doctoral Researcher at Universiti Utara Malaysia, and also a committee member of the ISOC Malaysia Continue reading
Good things come in threes! Following the launch of three data centers each in the Baltics (Riga, Tallinn, Vilnius) and in the Canadian Prairies (Calgary, Saskatoon, Winnipeg), we're thrilled to announce three new data centers in the Southern United States!
Located in Jacksonville (Florida), Memphis (Tennessee), and Tallahassee (Florida), they represent the 146th, 147th and 148th cities across our growing global network, and our 40th, 41st and 42nd cities just in North America. They join existing Cloudflare facilities in the US, including other Florida / Tennessee deployments such as Miami, Tampa and Nashville. Just in March, we've added deployments in 28 new cities worldwide, which help reduce latency to millions of Internet properties using Cloudflare, while expanding our capacity to withstand new and familiar attacks.
Photo of Jacksonville Beach by Lance Asper / Unsplash
Whether you're doing the Memphis Main Street Crawl, experiencing history through a visit to Tallahassee's Mission San Luis de Apalachee, or just relaxing by the stunning beaches of Jacksonville, you'll be close to the nearest Cloudflare data center.
This map reflects the network as of the publish date of this blog post. For the most up to date directory Continue reading
The open source workload identity framework projects are modeled after similar systems at Google, Netflix, and Twitter.
The disaggregation of the control plane and data plane with open interfaces feels a bit like the free-wheeling days of the early internet.
We just turned up Calgary, Saskatoon and Winnipeg - Cloudflare’s 143rd, 144th, and 145th data centers. This brings our Canadian presence to six cities, joining Toronto, Montreal and Vancouver. I grew up just outside of Saskatoon, so I couldn’t be happier that Cloudflare’s network has expanded to the Canadian Prairies. My parents still live there and I just booked flights to go and visit them this summer. When I tell people that I grew up in Saskatchewan, most people don’t know a lot about the region, so I wanted to share some of my favorite things about the region, starting from west to east:
About 1 million people live in the province of Saskatchewan. Saskatoon is the Continue reading
As you probably know, Cumulus Networks is an active contributor and enthusiastic member of the OCP community. So naturally, we couldn’t bear to miss OCP Summit 2018! The summit was held in San Jose from March 20th – 21st, and believe us, if you’re into open source anything, it was THE place to be. From BoF sessions to engineering workshops and everything in-between, there’s so much to talk about — but we’ll spare you an essay-length article and keep this short blog limited to our absolute favorite Cumulus OCP Summit highlights from the event. So whether you’re an OCP fan that couldn’t make it or you’re an attendee that wants to reminisce, check out these stellar moments from OCP Summit 2018.
It was great to hear Omar Baldonado from Facebook give Backpack a shoutout during his keynote address. With the support of OCP, we’ve teamed up our OS with Celestica’s hardware to bring this project to fruition, and what better place to highlight this venture than at OCP Summit? As Baldonado points out, “Cumulus also has been a very long standing partner and contributor and driver within the OCP community,” and we intend to continue those efforts. Continue reading
Kathy Brown, CEO of the Internet Society, recently penned an Op-Ed for Canada’s the Hill Times calling for a multistakeholder approach to Internet governance: “an approach that is collaborative, one that engages the entire Internet community.” According to Brown, “The time has come to expand this inclusive model of governance to more places around the world.”
“No one party, government, corporation, or non-profit controls the Internet and we are all better for it. Nor does any one party have the knowledge or the ability to identify the solutions to these complex policy challenges. It has been this approach—what we call the multistakeholder model—that has allowed humankind’s most advanced and powerful communications tool to spread so far and so fast.”
She cites the partnership between the Internet Society, Innovation, Science and Economic Development, the Canadian Internet Registration Authority, CANARIE, and CIPPIC as an example of the multistakeholder approach working successfully. “[Canada] is addressing cybersecurity head-on by working with the Internet Society to engage the Canadian Internet community in a process to develop recommendations to secure the Internet of Things.”
Read the entire Op-Ed, then learn how you can participate in the Collaborative Governance Project, Continue reading
The latest update showed continued maturation, but enterprises, developers, and vendors are still struggling to adapt.
Download now to learn the latest on the Next-Generation Data Center market.
If the history of high performance computing has taught us anything, it is that we cannot focus too much on compute at the expense of storage and networking. Having all of the compute in the world doesn’t mean diddlysquat if the storage can’t get data to the compute elements – whatever they might be – in a timely fashion with good sustained performance.
Many organizations that have invested in GPU accelerated servers are finding this out the hard way when their performance comes up short when they get down to do work training their neural networks, and this is particularly …
Removing The Storage Bottleneck For AI was written by Timothy Prickett Morgan at The Next Platform.
The SD-WAN network will connect more than 20 Hall and Prior nursing home locations in Western Australia and New South Wales.
