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Cisco IOSXRv Vagrant Libvirt Box Install

Build a Cisco IOSXRv Vagrant box for use with the libvirt provider.

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Boston, London, & NY developers: We can’t wait to meet you

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At Cisco Live!

The Network Collective crew—Jordan, Eyvonne, and I—will be at Cisco Live this week. You can normally find me hanging around the certifications or social media lounge, or just walking around the floor talking to folks. I’m presenting at the CCDE techtorial on Sunday.

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Myth Busted: Who Says Software Based Networking Performance Does Not Match Physical Networking?

100 Gbps Performance with NSX Data Center

NSX Data Center has shown for some time now (see VMworld 2016 NSX Performane Session (NET 8030) that it can drive upwards of 100G of throughput per node for typical data center workloads. In that VMworld session, we ran a live demo showing the throughput being limited by the actual physical ports on the host, which were 2 x 40 Gbps, and not by NSX Data Center.

Typically, in physical networking, performance is measured in raw packets per seconds to assure variety of traffic at variable packet sizes be forwarded between multiple physical ports. While in virtualized data center this is not a case, as hypervisor hosts only have to satisfy few uplinks, typically no more than four physical links. In addition, most of the virtualized workload use TCP protocol. In that case. ESXi hypervisor fowards the TCP data segments in highly optimized way, thus not always based on number of packets transferred but the amount of data segment forwarded in software. In typical data center workloads, TCP optimizations such as TSO, LRO and RSS or Rx/Tx Filters help drive sufficient throughput at hardly any CPU cost. TSO/LRO help move large amounts of Continue reading

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SevOne Supports Move From MPLS to SD-WAN With New Monitoring Tool

The initial release of the SevOne SD-WAN Monitoring software will give insights into Cisco-Viptela SD-WAN environments, but it will soon be extended to support other SD-WAN vendors.

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Open Source Database HA Resources from Severalnines

 

Severalnines has spent the last several years writing blogs and crafting content to help make your open source database solutions highly available. We are fans of highscalability.com and wanted to post some links to our top resources to help readers learn more how to make MySQL, MongoDB, MariaDB, Percona and PostgreSQL databases scalable.

Top HA Resources for MySQL & MariaDB

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Check Out Our New Network Programmability Course

Course Title: The Full Stack Engineer’s Guide to Network Programmability with Python

Course Duration: 30 hrs 33 min

 

The Full Stack Engineer’s Guide to Network Programmability with Python will provide learners with an inductive and comprehensive introduction to the Python programming language to include the various data types, control flow structures, functions, methods, classes, objects, reading and writing files, data storage using MySQL, and regular expressions. We will also cover on- and off-box Python automation and explore the guest shell in IOS-XE!

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Weekend Reads 060818

Migrating to IPv6 will make you ready for the next stage of the Internet. I was the principal network design engineer and member of the project team for deploying native IPv6 for all residential home users at Vodafone New Zealand two years ago. As an outcome of that project, IPv6 has been deployed for about 80% of residential home Internet users now. —Mansour Ganji @APNIC

After being embroiled into controversies over its data sharing practices, it turns out that Facebook had granted inappropriate access to its users’ data to more than 60 device makers, including Amazon, Apple, Microsoft, Blackberry, and Samsung. —Swati Khandelwal @The Hacker News

Over the past few years, researchers have started to choreograph vulnerability announcements to make a big press splash. Clever names — the e-mail vulnerability is called “Efail” — websites, and cute logos are now common. Key reporters are given advance information about the vulnerabilities. Sometimes advance teasers are released. Vendors are now part of this process, trying to announce their patches at the same time the vulnerabilities are announced. —Bruce Schneier

Yes, there are habits of highly effective cyber-criminals use to be successful! We can leverage the knowledge of these habits to better prepare, Continue reading

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Data Center Server Buyers Choose White Box Over Dell EMC, IHS Says

White box beat Dell EMC in terms of data center server revenue and units shipped in the first quarter of 2018.

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Linux Foundation Acknowledges Concerns About Microsoft’s Purchase of GitHub

The Linux Foundation Executive Director Jim Zemlin acknowledges that there are “still small pockets of deep mistrust of Microsoft in the open source community.”

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Vodafone Optical Trials With Ciena Hit 400 Gb/s Over a Single Wavelength

One trial used the OIF's FlexEthernet client interface standard, the other was based on Ciena's WaveLogic Ai platform.

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BT Axes Top Exec Gavin Patterson

The BT executive just last month announced plans to slash 13,000 jobs as part of a broader corporate restructuring. Investors were not happy.

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Red Hat reaches the Summit – a new top scientific supercomputer

Red Hat just announced its role in bringing a top scientific supercomputer into service in the U.S. Named “Summit” and housed at the Department of Energy’s OAK Ridge National Labs, this system with its 4,608 IBM compute servers is running — you guessed it — Red Hat Enterprise Linux.The Summit collaborators With IBM providing its POWER9 processors, Nvidia contributing its Volta V100 GPUs, Mellanox bringing its Infiniband into play, and Red Hat supplying Red Hat Enterprise OS, the level of inter-vendor collaboration has reached something of an all-time high and an amazing new supercomputer is now ready for business.To read this article in full, please click here

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Ancient and Modern

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SDxCentral’s Weekly Roundup — June 7, 2018

Verizon debuts software-defined secure branch; Microsoft takes data centers underwater; and T-Mobile, Nokia complete 5G data session.

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Summit: How IBM and Oak Ridge laboratory are changing supercomputing

The team designing Oak Ridge National Laboratory's new Summit supercomputer correctly predicted the rise of data-centric computing – but its builders couldn't forecast how bad weather would disrupt the delivery of key components.Nevertheless, almost four years after IBM won the contract to build it, Summit is up and running on schedule. Jack Wells, Director of Science for Oak Ridge Leadership Computing Facility (OLCF), expects the 200-petaflop machine to be fully operational by early next year.[ Now see who's developing quantum computers.] "It's the world's most powerful and largest supercomputer for science," he said.To read this article in full, please click here

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Summit: How IBM and Oak Ridge laboratory are changing supercomputing

The team designing Oak Ridge National Laboratory's new Summit supercomputer correctly predicted the rise of data-centric computing – but its builders couldn't forecast how bad weather would disrupt the delivery of key components.Nevertheless, almost four years after IBM won the contract to build it, Summit is up and running on schedule. Jack Wells, Director of Science for Oak Ridge Leadership Computing Facility (OLCF), expects the 200-petaflop machine to be fully operational by early next year.[ Now see who's developing quantum computers.] "It's the world's most powerful and largest supercomputer for science," he said.To read this article in full, please click here

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Weekly 393 – Infrastructure Monitoring with Juniper AppFormix (Sponsored)

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Stuff The Internet Says On Scalability For June 8th, 2018

Hey, it's HighScalability time:

• 294: slides in Internet trends 2018 deck; 110 TB: Hubble Space Telescope data; $124 million: daily App store purchases; 10 billion: monthly Siri requests; 1000 billion: yearly photos taken on iOS; one exabyte: Backblaze storage by year end; 837 million: spam taken down by Facebook in Q1; 86%: of passwords are terrible; 10 Million: US patents; 72: Transceiver Radar Chip; C: most energy efficient language; $138 Billion: global games market; $50 billion: 2017 Angry Birds revenue; 50 million: cesium atomic clock time source; 1.3 Million: vCPU grid on AWS at $30,000 per hour; $296 million: Fortnite April revenue; 4000: Siri requests per second; 


• Quotable Quotes:
  • @adriancolyer: Microsoft's ServiceFabric Continue reading

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Link Propagation 122: Click It Like You Mean It

Welcome to Link Propagation, a Packet Pushers newsletter. Link Propagation is included in your free Ignition membership.