Cisco Helped Bring the Brains to T-Mobile’s Network

T-Mobile is using Cisco’s virtualized packet core throughout its network today and will use it as it upgrades to a 5G packet core.

6G will achieve terabits-per-second speeds

The first of the upcoming 5G network technologies won’t provide significant reliability gains over existing wireless, such as 4G LTE, according to a developer involved in 5G.Additionally, the millisecond levels of latency that the new 5G wireless will attempt to offer—when some of it is commercially launched, possibly later this year—isn’t going to be enough of an advantage for a society that’s now completely data-driven and needs near-instant, microsecond connectivity.“Ultra-reliability will be basically not there,” Ari Pouttu, professor for Dependable Wireless at the University of Oulu, told me during a visit to the university in Finland. 5G’s principal benefits over current wireless platforms are touted as latency reduction and improved reliability by marketers who are pitching the still-to-be-released technology.To read this article in full, please click here

6G will achieve terabits-per-second speeds

The first of the upcoming 5G network technologies won’t provide significant reliability gains over existing wireless, such as 4G LTE, according to a developer involved in 5G.Additionally, the millisecond levels of latency that the new 5G wireless will attempt to offer—when some of it is commercially launched, possibly later this year—isn’t going to be enough of an advantage for a society that’s now completely data-driven and needs near-instant, microsecond connectivity.“Ultra-reliability will be basically not there,” Ari Pouttu, professor for Dependable Wireless at the University of Oulu, told me during a visit to the university in Finland. 5G’s principal benefits over current wireless platforms are touted as latency reduction and improved reliability by marketers who are pitching the still-to-be-released technology.To read this article in full, please click here

Norfolk and Richmond, Virginia: Cloudflare’s 152nd and 153rd cities

Virginia has a very important place in Internet history, as well as the history of Cloudflare’s network.

Northern Virginia, in the area around Ashburn VA, has for a long time been core to Internet infrastructure. In the early 1990’s, MAE-East (Metropolitan-Area-Exchange East) , an Internet Exchange Point (IXP) was established. MAE-East and West were some of the earliest IXPs. Internet Exchange Points are crucial interconnection points for ISPs and other Internet Networks to interconnect and exchange traffic. Eco-systems have grown around these through new data center offerings and new Internet platforms. Like many pieces of the Internet, MAE-East had a humble beginning, though not many humble beginnings grew to handle around 50% of Internet traffic exchange.

Cloudflare’s second Data Center, and one that still plays a critical component in our Global Network was Ashburn, Virginia. Similarly across many organizations, the Northern Virginia area has become a Data Center mecca. Many of the largest Clouds have a substantial amount of their footprint in Northern Virginia. Although MAE-East no longer exists, other Internet Exchange Points have come and grown in its place.

Cloudflare’s network has grown beyond what was traditional Interconnection points, like Ashburn/Northern VA, to a new Edge of the Continue reading

Dell EMC puts big data as a service on premises

To get up and running on a self-service, big-data analytics platform efficiently, many data-center and network managers these days would likely think about using a cloud service. But not so fast – there is some debate about whether the public cloud is the way to go for certain big-data analytics.For some big-data applications, the public cloud may be more expensive in the long run, and because of latency issues, slower than on-site private cloud solutions. In addition, having data storage reside on premises often makes sense due to regulatory and security considerations. [ Also see How to plan a software-defined data-center network and Efficient container use requires data-center software networking.] With all this in mind, Dell EMC has teamed up with BlueData, the provider of a container-based software platform for AI and big-data workloads, to offer Ready Solutions for Big Data, a big data as a service (BDaaS) package for on-premises data centers. The offering brings together Dell EMC servers, storage, networking and services along with BlueData software, all optimized for big-data analytics. To read this article in full, please click here

Dell EMC puts big data as a service on premises

To get up and running on a self-service, big-data analytics platform efficiently, many data-center and network managers these days would likely think about using a cloud service. But not so fast – there is some debate about whether the public cloud is the way to go for certain big-data analytics.For some big-data applications, the public cloud may be more expensive in the long run, and because of latency issues, slower than on-site private cloud solutions. In addition, having data storage reside on premises often makes sense due to regulatory and security considerations. [ Also see How to plan a software-defined data-center network and Efficient container use requires data-center software networking.] With all this in mind, Dell EMC has teamed up with BlueData, the provider of a container-based software platform for AI and big-data workloads, to offer Ready Solutions for Big Data, a big data as a service (BDaaS) package for on-premises data centers. The offering brings together Dell EMC servers, storage, networking and services along with BlueData software, all optimized for big-data analytics. To read this article in full, please click here

Equinix Picks New CEO Charles Meyers

Meyers succeeds Peter Van Camp, who was named interim CEO in January when former CEO Steven Smith resigned suddenly after “exercising poor judgment with respect to an employee matter.”

Worth Reading: Getting on with Digital Transformation

While the Information Technology and Communications industry has been drumming the importance of the digital transformation trend for several years now, the progress to date has been lackluster. However, with the awareness of digital transformation hitting the mainstream, it is now beginning to seem like things are about to change. —Juha Holkkola @CircleID

IDG Contributor Network: Network engineers are from Mars, application engineers are from Venus

Application and network engineers see the world differently. Unfortunately, these differences often result in resentment, with each party keeping score. Recently, application engineers have encroached on networking in a much bigger way. Sadly, if technical history repeats itself, we will revisit many of the long-ago problems again as application engineers rediscover the wisdom held by networking engineers.There are many areas of network engineering and application engineering where there is no overlap or contention. However, the number of overlapping areas is increasing as the roles of network and application engineers expand and evolve.Application engineers will try to do anything they can with code. I’ve spoken to many network engineers who struggle to support multi-cast. When I ask them why they are using multi-cast, they nearly always say, “the application engineers chose it, because it's in the Unix Network Programming book.” The Berkley Socket programming interface permits using multi-cast. The application engineers then provide lost packet recovery techniques to deliver files and real-time media using unicast and multicast. The Berkeley Socket does not easily support VLANs. Thus VLANs have always been the sole property of the network engineer. Linux kernel network programming capabilities in recent years become much more Continue reading

IDG Contributor Network: Network engineers are from Mars, application engineers are from Venus

Application and network engineers see the world differently. Unfortunately, these differences often result in resentment, with each party keeping score. Recently, application engineers have encroached on networking in a much bigger way. Sadly, if technical history repeats itself, we will revisit many of the long-ago problems again as application engineers rediscover the wisdom held by networking engineers.There are many areas of network engineering and application engineering where there is no overlap or contention. However, the number of overlapping areas is increasing as the roles of network and application engineers expand and evolve.Application engineers will try to do anything they can with code. I’ve spoken to many network engineers who struggle to support multi-cast. When I ask them why they are using multi-cast, they nearly always say, “the application engineers chose it, because it's in the Unix Network Programming book.” The Berkley Socket programming interface permits using multi-cast. The application engineers then provide lost packet recovery techniques to deliver files and real-time media using unicast and multicast. The Berkeley Socket does not easily support VLANs. Thus VLANs have always been the sole property of the network engineer. Linux kernel network programming capabilities in recent years become much more Continue reading

History Of Networking – Mike Sullenberger – DMVPN

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 – Mike Sullenberger – DMVPN appeared first on Network Collective.

Ansible Tower 3.3 Available Now

We're happy to announce that Red Hat Ansible Tower 3.3 is now generally available. In this release, there are a number of enhancements that can help improve the automation in any organization. The team has been hard at work adding functionality with Red Hat OpenShift Container Platform, more granular permissions, scheduler improvements, support for multiple Ansible environments, and many other features.

Here are a few we are excited about!

Ansible Tower + OpenShift Container Platform

Push-button Ansible Tower deployment for Red Hat OpenShift Container Platform users is now here! Ansible Tower 3.3 is now a supported offering on Red Hat OpenShift Container Platform. The new Ansible Tower pod service in Red Hat OpenShift makes it easy to add capacity to Ansible Tower by adding additional pods. This enables users to scale at runtime as needed. Best of all, Ansible Tower is configurable directly from Red Hat OpenShift Container Platform.

• Scale Ansible Tower up and down at runtime as needed
• Add capacity to Ansible Tower by adding additional pods

All configurable directly from the Red Hat OpenShift Container Platform UI, CLI, and API.

More Granular Control

Ansible Tower now allows for even easier configuration of jobs for use Continue reading

Is QoS Becoming Irrelevant?

Alternatives to Nmap: from simple to advanced network scanning

This month marks the 20th anniversary of Nmap, the open-source network mapping tool that became the standard used by many IT professionals, but that can be a bit much if you only need to do general network maintenance and are intimidated by its command-line interface.There are alternatives – not many – that range in technical sophistication from tools with GUIs that can ease you into performing the essentials of network maintenance to more advanced software that is similar to Nmap itself.[ Also see reviews of Icinga, Observium, Nagios and Zabbix network-monitoring software.] Like Nmap, all these network tools are free.To read this article in full, please click here

Zabbix delivers effective, no-frills network monitoring

We took a look at open-source Zabbix network monitoring software version 3.4.9 and found it to be a solid, straightforward offering that’s easy to install, provides the configurability and granularity that enterprises demand, and delivers fast discovery.To read this article in full, please click here(Insider Story)

Zabbix delivers effective, no-frills network monitoring

We took a look at open-source Zabbix network monitoring software version 3.4.9 and found it to be a solid, straightforward offering that’s easy to install, provides the configurability and granularity that enterprises demand, and delivers fast discovery.To read this article in full, please click here(Insider Story)

Alternatives to Nmap: from simple to advanced network scanning

This month marks the 20th anniversary of Nmap, the open-source network mapping tool that became the standard used by many IT professionals, but that can be a bit much if you only need to do general network maintenance and are intimidated by its command-line interface.There are alternatives – not many – that range in technical sophistication from tools with GUIs that can ease you into performing the essentials of network maintenance to more advanced software that is similar to Nmap itself.[ Also see reviews of Icinga, Observium, Nagios and Zabbix network-monitoring software.] Like Nmap, all these network tools are free.To read this article in full, please click here

Adjusting System State with Infrastructure as Code

This is the second blog post in “thinking out loud while preparing Network Infrastructure as Code presentation for the network automation course” series. If you stumbled upon it, you might want to start here.

An anonymous commenter to my previous blog post on the topic hit the crux of the infrastructure-as-code challenge when he wrote: “It's hard to do a declarative approach with Ansible and the nice network vendor APIs.” Let’s see what he was trying to tell us.

QSYM: a practical concolic execution engine tailored for hybrid fuzzing

QSYM: a practical concolic execution engine tailored for hybrid fuzzing Yun et al., USENIX Security 2018

There are two main approaches to automated test case generated for uncovering bugs and vulnerabilities: fuzzing and concolic execution. Fuzzing is good at quickly exploring the input space, but can get stuck when trying to get past more complex conditional causes (i.e., when randomly generated inputs are unlikely to satisfy them). Concolic execution, which we saw in action earlier in the week, uses symbolic execution to uncover constraints and pass them to a solver. It can handle complex branch conditions, but it’s much slower. Hybrid fuzzers combine both coverage-guided fuzzing and concolic execution, bringing in the big guns (concolic) when the fuzzer gets stuck. In non-trivial real-world applications though, even the hybrid approach has been too slow. Until now.

For me, the attention grabbing paragraph in this paper is to be found on page 8 (752) in section 5.1. Google’s OSS-Fuzz was previously used to test a number of important real-world applications and libraries including libjpeg, libpng, libtiff, lepton, openjpge, tcpdump, file, libarchive, audiofile, ffmpeg, and binutils.

It is worth noting that Google’s OSS-Fuzz generated 10 trillion test inputs Continue reading

Open Source Eases AT&T’s Technical Burden

“If you asked me five years ago if I would be talking about open source I would have said you were crazy,” said Amy Wheelus, VP of Network Cloud at AT&T.