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    KT to launch 5G network slicing for the enterprise

    KT has wrapped up the development and verification for its 5G network slicing service aimed at the enterprise, the company said on Tuesday.
    It will allow customers to optimise their networks to meet their specific requirements, the South Korean telco said.
    5G network slicing divides a single physical 5G network into multiple virtual networks. KT’s service applies this to the core network.
    Customers will be able to divide the network to prioritise certain virtual networks to a specific workforce or application so that there is no interruption in data transfers.
    For example, in a factory setting, the customer can divide the 5G network for wireless CCTVs with those used by the workers. Data transfers on the cameras would not be impacted by smartphone use by employees, which will allow uninterrupted monitoring of the sites, KT said.

    It will also allow networks to be set so that some of them can only be accessed by designated Internet of Things (IoT) devices near the worksite, the telco said, which will increase security.
    5G network slicing will significantly help applications such as smart factory, smart city, logistics, emergency service networks, and others, KT added.
    The South Korean telco is looking to find various enterprise application for 5G networks. In May, it launched autonomous carts with 5G connectivity at its smartphone warehouses.
    In December, in collaboration with the National Fire Agency, the telco launched 5G emergency video call service.
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    Facebook creates robot to wrap fibre over live power lines

    Image: Facebook Connectivity
    Facebook Connectivity, in league with ULC Robotics, has developed a robot capable of winding optical fibre on live medium voltage (MV) power lines that typically serve residential areas in much of the world, at a claimed cost three to five times cheaper than traditional aerial fibre construction.
    Karthik Yogeeswaran, wireless systems engineer at Facebook Connectivity, said in a blog post the idea for the project came after travelling through rural Africa and noticing the ubiquity of power line infrastructure, which is far “more pervasive than the total fibre footprint of the country”.
    In order to keep costs down, Facebook needed to lower the preparatory and manual work needed to wind fibre around power lines, and to minimise disruption of electrical services, the robot needed to able to do its job on a live line and be able to avoid and cross obstacles it encountered.
    Keeping the weight of the robot within the limits that a medium voltage power line could handle was a key challenge because it would limit the amount of fibre it could carry, so the size of the cable needed to be reduced.
    “Using the MV power line as a support adds a number of additional challenges. The first is the voltage stress. MV conductors can have a voltage as high as 35kV which can cause degradation phenomena such as tracking, partial discharge, and dry band arcing,” Yogeeswaran said.

    “The power line can also see elevated temperatures far above the melting point of typical fibre-optic jackets, and the stretching of the power line due to thermal changes and wind-induced aeolian vibration can induce strain on the fibres.”
    The end result was a cable using G.657-compliant 200-micron fibres with a special jacket weighing 28 pounds for a 1km span.
    To be able to navigate obstacles, the robot can lift its middle section that contains the fibre and rotation systems, before passing it and lowering its middle to continue wrapping. The robot has a vision system to identify obstacles and adjust its movements.
    “To account for the human interaction steps such as setup, loading and unloading the robot, installing transitions, etc., we have been conservatively estimating an overall build speed of 1.5km to 2km per robot per day on average,” Yogeeswaran said.
    “While traditional aerial fibre deployment involves heavy machinery, reel carts, large spools, and large crew sizes, a fibre deployment crew deploying our solution, will comprise two or three electric utility linemen and a pickup truck with a few kilometre spools of fibre, a robot, and a few accessories, allowing many crews to work in parallel.”
    In developing countries, Yogeeswaran said the total cost including labour of running the robot would be between $2 and $3 per metre.
    “By lowering the total cost of aerial fibre deployment, we expect that our system will have a significant impact on internet penetration, especially among the half of the world earning less than $5.50 per day,” he said.
    “While we still have a number of steps to complete before our first deployment, we have confidence that this approach will yield a substantial improvement to both the cost and speed of fibre deployments.”
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    HPE buys SD-WAN player Silver Peak for $925 million

    Hewlett Packard Enterprise on Monday announced that it plans to acquire SD-WAN player Silver Peak for $925 million. HPE said Silver Peak will be combined with its Aruba business unit to bolster its position in the software-defined wide area network (SD-WAN) market. 

    Silver Peak’s SD-WAN products aim to help enterprises and service providers migrate to SD-WAN connectivity, improve application performance and lower costs. 
    HPE posits that demand for SD-WAN services will continue to rise with the ongoing remote work trend and influx of IoT devices on enterprise networks. HPE said integrating Silver Peak’s capabilities with Aruba’s edge services platform will help the company ramp up its edge-to-cloud strategy and its focus on a distributed cloud model. 
    “HPE was an early mover in identifying the opportunity at the edge and that trend is accelerating in a post-COVID world,” said HPE chief executive Antonio Neri. “With this acquisition we are accelerating our edge-to-cloud strategy to provide a true distributed cloud model and cloud experience for all apps and data wherever they live. Silver Peak’s innovative team and technology bring critical capabilities that will help our customers modernize and transform their networks to securely connect any edge to any cloud.”
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    Backdoor accounts discovered in 29 FTTH devices from Chinese vendor C-Data

    Two security researchers said this week that they found severe vulnerabilities and what appears to be intentional backdoors in the firmware of 29 FTTH OLT devices from popular vendor C-Data.
    FTTH stands for Fiber-To-The-Home, while OLT stands for Optical Line Termination.
    The term FTTH OLT refers to networking equipment that allows internet service providers to bring fiber optics cables as close to the end-users as possible.
    As their name hints, these devices are the termination on a fiber optics network, converting data from an optical line into a classic Ethernet cable connection that’s then plugged in a consumer’s home, data centers, or business centers.
    These devices are located all over an ISP’s network, and due to their crucial role, they are also one of today’s most widespread types of networking devices, as they need to sit in millions of network termination endpoints all over the globe.
    Seven very severe vulnerabilities

    In a report published this week, security researchers Pierre Kim and Alexandre Torres said they discovered seven vulnerabilities in the firmware of FTTH OLT devices manufactured by Chinese equipment vendor C-Data.
    Kim and Torres said they confirmed the vulnerabilities by analyzing the latest firmware running on two devices, but they believe that the same vulnerabilities impact 27 other FTTH OLT models, as they run similar firmware.
    The vulnerabilities are as bad as it gets, but by far, the worst and most disturbing of the seven is the presence of Telnet backdoor accounts hardcoded in the firmware.
    The accounts allow attackers to connect to the device via a Telnet server running on the device’s WAN (internet-side) interface. Kim and Torres said the accounts granted intruders full administrator CLI access.
    The two researchers said they found four username-password combinations hidden in the C-Data firmware, with backdoor accounts differing per device, based on the device model and firmware version.
    suma123/panger123debug/debug124root/root126guest/[empty]
    But this initial backdoor CLI access could then be used to exploit other vulnerabilities. For example, Kim and Torres said an attacker could also exploit a second bug to list credentials in cleartext in the Telnet CLI for all the other device administrators; credentials that could be used at a later point in case the backdoor account is removed.
    A third vulnerability also allowed the attacker to execute shell commands with root privileges from any CLI account.
    The fourth bug was discovered in the same Telnet server running on the WAN interface. Kim and Torres said that this server could be abused to crash the FTTH OLT device. Since the server was running by default on the WAN interface, this bug could be used to sabotage an ISP’s network if they’re not filtering traffic towards the FTTH OLT devices.
    But the devices were also running a web server that was included to power the device’s management web panel. Here, Kim and Torres found the fifth bug. Just by downloading six text files from this web server, an attacker could get his hands on cleartext account credentials for the device’s web interface, Telnet server, and SNMP interface.
    In case any of the passwords are found in an encrypted format, Kim and Torres say that this is not a problem either, as credentials are usually secured with an easy to break XOR function.
    And last, but not least, the two researchers pointed out that all management interfaces on the tested devices ran in cleartext modes, with HTTP rather than HTTPS, Telnet instead of SSH, and so on. They said this opened devices and the ISPs that used them to easy MitM (man-in-the-middle) attacks.
    Full disclosure
    Kim and Torres said they published their findings today without notifying the vendor as they believe some of the backdoors were intentionally placed in the firmware by the vendor.
    C-Data was not immediately available for comment.
    The two also say that identifying all vulnerable devices will also be a problem for ISPs, as some of the vulnerable equipment also appears to have been sold as a white-label product, under different brands, such as OptiLink, V-SOL CN, BLIY, and possibly others.
    Below is the list of vulnerable C-Data FTTH OLT models:
    72408A
    9008A
    9016A
    92408A
    92416A
    9288
    97016
    97024P
    97028P
    97042P
    97084P
    97168P
    FD1002S
    FD1104
    FD1104B
    FD1104S
    FD1104SN
    FD1108S
    FD1108SN
    FD1204S-R2
    FD1204SN
    FD1204SN-R2
    FD1208S-R2
    FD1216S-R1
    FD1608GS
    FD1608SN
    FD1616GS
    FD1616SN
    FD8000 More

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    Netgear Orbi RBK752 delivers Gigabit Wi-Fi 6 mesh for under $500

    Netgear expands its Gigabit Wi-Fi 6 offering with a new, lower-priced, Orbi RBK752 mesh system.

    Designed to handle the demands being placed on Wi-Fi by video conferencing, streaming 4K/8K UHD content, and the myriad of IoT devices that litter out homes and offices, the Orbi RBK752 joins the Orbi RBK852.
    Supporting internet speeds up to internet speeds of up to 1 Gigabit, this mesh pack is perfect for those who want to make the most of their internet pipe without breaking the bank.
    Must read: Five iPhone security settings you should check today
    For those who have even faster internet connections, the Orbi RBK852 supports speeds up to 2.5 Gigabit.

    Orbi RBK752 tech specs
    Configuration: 1 Router + 1 Satellite
    Wi-Fi speed: WIFI 6 – AX4200 (Up to 4.2 Gbps)
    Wi-Fi coverage: Up to 5,000 sq. ft.
    Recommended number of devices: Up to 40+
    Best for internet speeds: Up to 2.0 Gbps
    Backhaul: Tri-band
    Wired Gigabit Ethernet ports (Router + Satellites): 6 (4 + 2)
    Network Security: Netgear Armor, WPA2, Guest Wi-Fi Secure Access
    Technology: Tri-Band, Smart Connect – One Wi-Fi name, Beamforming, MU-MIMO
    $450 at Amazon Amazon (3-pack Orbi RBK852)

    Orbi Wi-Fi 6 Mesh Systems Comparison Chart

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    “In the current environment where home networks are now constrained by every member of the household working from home, distance learning and streaming video or playing online games, this new Orbi Wi-Fi 6 Mesh system is designed to carry the heavy load of this new reality,” said David Henry, senior vice president of Connected Home Products for Netgear. “Providing a range of options for consumers and small businesses, Netgear boasts the largest portfolio of Wi-Fi 6 routers, range extenders, mesh Wi-Fi systems, and cable gateways in the industry. It is our aim to provide a broad range of advanced Wi-Fi solutions to address the needs of the ever-evolving consumer landscape.”

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    New Zealand's Chorus shows Godzilla effect with half-hour upstream traffic spikes

    Image: Chorus
    New Zealand broadband wholesaler Chorus has revealed a network traffic graph that shows waves of upstream traffic cresting every half hour, which the company dubbed the Godzilla effect.
    At the same time, the graph shows upstream traffic stopped out at 0.29Tbps during April, when New Zealand was in its hardest level of coronavirus restrictions. As restrictions have eased, upstream traffic has dropped, but still remains 10% above the pre-lockdown baseline seen in early March as people continued to work from home, Chorus said in an ASX filing on its fourth quarter connections numbers.
    “Upstream traffic peaked ~60% higher (than January levels) when lockdown began, driven by rapid adoption of video conferencing applications,” the company said.
    “Downstream traffic initially peaked ~40% higher (than January levels) when lockdown began. Downstream traffic dipped in the first week of lockdown as streaming providers limited streaming quality.”
    During April, Chorus saw an average data consumed per connection top 400GB across its network, with fibre customers downloading 495GB on average, and copper customers averaging 273GB each.

    For its fourth quarter, Chorus said it saw average data usage fall by 42GB on fibre to 387GB, while copper connections dropped 27GB on average to 198GB. Chorus added the fourth quarter numbers were artificially lower by 10% due to streaming services lowering the bandwidth used as the pandemic spread across the world.
    Due to the pandemic, Chorus said restrictions paused the UFB2 rollout and the company had 15,000 fewer fibre installations than last year.
    See also: Physical location of video conferencing servers key to Australian performance: ACCC
    Overall, Chorus said it had 4,000 fewer fixed line connections in total at the end of Q4, to now record 1.415 million across New Zealand, while its broadband segment increased by 4,000 to 1.2 million, which reversed the broadband connections lost in the previous quarter.
    In its Ultra-Fast Broadband (UFB) footprint, Chorus said it now has 725,000 connections from 931,000 premises passed and 1.2 million customers able to connect. Within UFB1 areas, uptake is sitting at 63%, while UFB2 recorded 37% uptake.
    Chorus added its number of fibre connections now sits at 740,000 with 466,000 copper connections, and 1Gbps plans making up around 20% of its orders, with the total number of 1GBps connections now being 115,000.
    Across the ditch at the end of June, deputy secretary of communications at the Department of Infrastructure, Transport, Regional Development and Communications Richard Windeyer said the experience during the coronavirus pandemic has shown Australian broadband can handle working from home.
    “The networks in Australia are capable of coping with a very significant increase in overall capacity and in the type of, and shape of, use of the network. And therefore, it has demonstrated that remote work is a possibility,” Windeyer said.
    “Now, I think how that plays out across the Australian economy … depends on factors that are unrelated to telecommunications … our view would be we’ve seen, and quite pleased to see, that the networks are capable of supporting people choosing to work remotely, and as COVID has shown, in significant numbers.”
    Windeyer said the question waiting to be answered is how many of the habits developed in the past few months would endure.
    “There’s no reason to believe that people will go back, will necessarily stop taking telehealth consultations and … there will be an increase in people’s ability to, and interest in being able to, work remotely.”
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