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Is there an unsecured wireless network near you?
 
Always wanted to build an imaginary hyperscale network? Now, you can
Thursday, 23 March 2017 19:34

An MIT student has created a scheme to shadow packets as they pass through networks, to help take the risk out of experimenting with changes to network configurations.

The disaggregation of the control plane from the data plane is old news, but according to MIT graduate student Amy Ousterhout and her collaborators, there's good reason to think another level of disaggregation might be useful.

Flexplane takes the software routing – the control plane, in SDN-speak – and splits it in two: there's the “real network”, where packets move, and there's also an emulated network that's a software model.

“The emulator

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Juniper emits heavy duty photonic interconnect with a cloudy tinge
Wednesday, 22 March 2017 17:33

In January 2016, Juniper Networks swallowed BTI Systems with the aim of bringing software defined network approaches to the optical sphere. One of the fruits of that acquisition has now landed, with the company announcing its Open Cloud Interconnect.

Juniper says the new OCI is aimed at inter-data centre connections, with high capacity coherent optical systems, with “open and programmable” routing, switching, security and virtualisation.

The hardware side of the launch is straightforward.

The QFX10000 gets a 1.2 Tbps line card with six 200 Gbps coherent optical ports. The device can support Ethernet VPN, VXLAN and MacSec MAC-level security.

The

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Nokia blasts 250 Gbps across Atlantic in optical test for Facebook
Wednesday, 22 March 2017 15:58

Nokia has lit up a trans-Atlantic fibre for Facebook, in a field trial that showed off 200 Gbps and 250 Gbps wavelengths on a 5,500 km link.

According to Nokia, applying a technique from Bell Labs called probabilistic constellation shaping (PCS) yielded a 2.5x increase in the rated capacity of the New York-Ireland cable used in the test.

PCS was combined with low-linewidth lasers and tricks to compensate for nonlearity in the fibre, to achieve spectral efficiency of 7.46 bits per second per Hertz in the 64-QAM transmissions.

PCS works by changing how QAM (quadrature amplitude modulation) works.

“Constellation” refers

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Oz companies fume as Enetica outage enters its second day
Saturday, 25 March 2017 02:17

Australian web service firm Enetica has provoked consternation among customers frustrated about a prolonged outage now entering its second day.

Enetica 's web hosting and domain/DNS service have been down with limited intermittent availability at best since Thursday.

The latest updates from Webcity, Enetica's parent firm, suggest techies have isolated the problem down to hardware failure. "We are currently implementing replacement equipment and in the process of deploying it," an update to Webcity's official support account on Twitter said on Friday. Support staff had earlier suggested a network outage was behind the problem in between apologising to customers and trying

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Cheap Smarthome Gadget(s) Hacked into Zigbee Sniffer
Tuesday, 28 March 2017 17:00

French hacker [akila] is building up a home automation system. In particular, he’s been working with the “SmartHome” series of gadgets made by Chinese smartphone giant, Xiaomi. First, he started off by reverse-engineering their very nicely made temperature and humidity sensor. (Original in French, hit the translate button in the lower right.) With that under his belt, he opened up the PIR motion sensor unit to discover that it has the same debugging pinouts and the same processor. Almost too easy.

For a challenge, [akila] decided it was time to implement something useful in one of these gadgets: a ZigBee …read more

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Shine on, you crazy Eind minds: Boffins fire out 43Gbps infrared 'Wi-Fi'
Saturday, 18 March 2017 19:04

In five years or so, Wi-Fi access points could carry data at rates 100 times faster than today using infrared light rather than other portions of the electromagnetic spectrum.

Researchers at Eindhoven University of Technology (TU/e) in the Netherlands have developed a way to use fiber optic cables, mounted with networking hardware in a room, to shine data directly to devices using harmless infrared light.

The researchers managed to achieve speeds of 42.8 Gbit/s over a distance of 2.5 metres (8.2 feet) with this technique. That's about 2,000 times faster than average Wi-Fi speeds in the Netherlands (~17.6 Mbit/s) and

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