Here are the top stories SDxCentral wrangled this week related to SDN, NFV, cloud, and virtualization infrastructure: Verizon Publishes an SDN/NFV Reference Architecture — We can’t let AT&T have all the fun. On the heels of Ma Bell’s Ecomp specification, Verizon lays down some SDN/NFV knowledge of its own. A bit of Friday fun from the NFV World Congress. How... Read more →
Mininet-WiFi is a fork of the Mininet SDN network emulator. The Mininet-WiFi developers extended the functionality of Mininet by adding virtualized WiFi stations and access points based on the standard Linux wireless drivers and the 80211_hwsim wireless simulation driver. They also added classes to support the addition of these wireless devices in a Mininet network scenario and to emulate the attributes of a mobile station such as position and movement relative to the access points.
The Mininet-WiFi extended the base Mininet code by adding or modifying classes and scripts. So, Mininet-WiFi adds new functionality and still supports all the normal SDN emulation capabilities of the standard Mininet network emulator.
In this post, I describe the unique functions available in the Mininet-WiFi network emulator and work through a few tutorials exploring its features.
In this post, I present the basic functionality of Mininet-WiFi by working through a series of tutorials, each of which works through Mininet-WiFi features, while building on the knowledge presented in the previous tutorial. I suggest new users work through each tutorial in order.
I do not attempt to cover every feature in Mininet-WiFi. Once you work through the tutorials in this post, Continue reading
In its first 27 years of existence we saw the introduction of six Ethernet rates – 10Mbps, 100Mbps, 1Gbps, 10Gbps 40Gbps and 100Gbps. And the Ethernet community is now working feverously to introduce six new rates -- 2.5Gbps, 5Gbps, 25Gbps 50Gbps, 200Gbps and 400Gbps-- in the next three years.
Higher Ethernet rates used to be introduced when industry bandwidth requirements drove the need for speed. Butwith Ethernet’s success, it soon became apparent that one new advance could satisfy the requirements of each Ethernet application space. This was clearly illustrated nearly 10 years ago when it was recognized that computing and networking were growing at different rates. This led to 40Gbps being selected as the next rate for servers beyond 10Gbps, while 100Gbps was selected as the next networking rate.
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Packet Pushers podcasts are now available on Google Play Music. You'll need to sign in with a Google account to listen.
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It worked with Cisco, Ericsson, HPE, Intel, etc.
This month Nvidia bolstered its GPU strategy to stretch further into deep learning, high performance computing, and other markets, and while there are new options to consider, particularly for the machine learning set, it is useful to understand what these new arrays of chips and capabilities mean for users at scale. As one of the companies directly in the lens for Nvidia with its recent wave of deep learning libraries and GPUs, Baidu has keen insight into what might tip the architectural scales—and what might still stay the same, at least for now.
Back in December, when we talked to …
Baidu Eyes Deep Learning Strategy in Wake of New GPU Options was written by Nicole Hemsoth at The Next Platform.
Starting today at 17:09 UTC our systems detected a large scale routing incident affecting hundreds of Autonomous systems. Many BGPmon users have received an email informing them of this change.
Our initial investigation shows that the scope of this incident is widespread and affected 576 Autonomous systems and 3431 prefixes. Amongst the networks affected are high traffic prefixes including those of Google, Amazon, Twitter, Apple, Akamai, Time Warner Cable Internet and more.
All these events have either AS200759 “innofield AG” or private AS 65021 as the origin AS. In the cases where AS65021 appears as the origin AS, AS200759 is again the next-hop AS.
AS200759 “innofield AG” is a provider based out of Switzerland and normally only announces one IPv4 and one IPv6 prefix.
These are 2 example events:
Prefix 66.220.152.0/21 Is normally announced by Facebook AS32934 and during this event was announced by AS200759 as a more specific /22
Detected prefix: 66.220.152.0/22
Example aspath: 4608 24130 7545 6939 200759
And AS origin: 65021 behind AS 200759
Detected prefix: 66.220.152.0/22
Example aspath: 133812 23948 4788 6939 200759 65021
We saw the announcements via the following peers and providers of AS200759 “innofield Continue reading