A fiber optic splitter, also known as a beam splitter, is based on a quartz substrate of an integrated waveguide optical power distribution device, similar to a coaxial cable transmission system. The optical network system uses an optical signal coupled to the branch distribution. The fiber optic splitter is one of the most important passive devices in the optical fiber link. It is an optical fiber tandem device with many input and output terminals, especially applicable to a passive optical network (EPON, GPON, BPON, FTTX, FTTH etc.) to connect the MDF and the terminal equipment and to branch the optical signal.
https://en.wikipedia.org/wiki/Fiber_optic_splitter33
A fiber optic splitter is a device that splits the fiber optic light into several parts by a certain ratio. For example, when a beam of fiber optic light transmitted from a 1X4 equal ratio splitter, it will be divided into 4-fiber optic light by equal ratio that is each beam is 1/4 or 25% of the original source one. A fiber optic splitter is different from WDM. WDM can divide the different wavelength fiber optic light into different channels. fiber optic splitter divide the light power and send it to different channels.
Most Splitters available in 900µm loose tube and 250µm bare fiber. 1x2 and 2x2 couplers come standard with a protective metal sleeve to cover the split. Higher output counts are built with a box to protect the splitting components
https://fibertronics-store.com/Splitter ... s_c834.htm33
Narus is one of the first companies to combine patented machine learning algorithms, automation, and data fusion technologies to provide the incisive intelligence, context, and control network operators need to protect against cyberthreats and ensure information security.
Narus software primarily captures various computer network traffic in real time and analyzes results.[9][10]
Prior to 9/11 Narus built carrier-grade tools to analyze IP network traffic for billing purposes, to prevent what NARUS called "revenue leakage". Post-9/11 Narus added more "semantic monitoring abilities" for surveillance.
NarusInsight[edit]
Narus is noted for having created NarusInsight, a supercomputer system, whose installation in AT&T's San Francisco Internet backbone gave rise to a 2006 class action lawsuit by the Electronic Frontier Foundation against AT&T, Hepting v. AT&T.[11]
https://en.wikipedia.org/wiki/Narus_(company)
33
The Ultimate Net Monitoring Tool
Wired Staff
WIRED
The equipment that technician Mark Klein learned was installed in the National Security Agency's "secret room" inside AT&T's San Francisco switching office isn't some sinister Big Brother box designed solely to help governments eavesdrop on citizens' internet communications.
Rather, it's a powerful commercial network-analysis product with all sorts of valuable uses for network operators. It just happens to be capable of doing things that make it one of the best internet spy tools around.
"Anything that comes through (an internet protocol network), we can record," says Steve Bannerman, marketing vice president of Narus, a Mountain View, California, company. "We can reconstruct all of their e-mails along with attachments, see what web pages they clicked on, we can reconstruct their (voice over internet protocol) calls."
Inside the Secret Room Courtroom Clash!
A federal judge refuses to give AT&T back its internal documents, but orders the EFF not to give them out.
Whistle-blower's Precognition
Years before the NSA's warrantless surveillance program made national headlines, then-AT&T technician Mark Klein suspected his company was colluding with the government to spy on Americans.
– and provides documents he says proves his case.
A little-known company called Narus makes the packet-inspection technology said to be the basis of the NSA's internet surveillance. Here's how it works.
Daily updates from 27B Stroke 6, the Wired News security and privacy blog
Narus' product, the Semantic Traffic Analyzer, is a software application that runs on standard IBM or Dell servers using the Linux operating system. It's renowned within certain circles for its ability to inspect traffic in real time on high-bandwidth pipes, identifying packets of interest as they race by at up to 10 Gbps.
Internet companies can install the analyzers at every entrance and exit point of their networks, at their "cores" or centers, or both. The analyzers communicate with centralized "logic servers" running specialized applications. The combination can keep track of, analyze and record nearly every form of internet communication, whether e-mail, instant message, video streams or VOIP phone calls that cross the network.
Brasil Telecom and several other Brazilian phone companies are using Narus products to charge each other for VOIP calls they send over one another's IP networks. Internet companies in China and the Middle East use them to block VOIP calls altogether.
But even before the product's alleged role in the NSA's operations emerged, its potential as a surveillance tool was not lost on corporate America.
In December, VeriSign, also of Mountain View, chose Narus' product as the backbone of its lawful-intercept-outsourcing service, which helps network operators comply with court-authorized surveillance orders from law enforcement agencies. A special Narus lawful-intercept application does this spying with ease, sorting through torrents of IP traffic to pick out specific messages based on a targeted e-mail address, IP address or, in the case of VOIP, phone number.
"We needed their fast packet-detection and inspection capability," says VeriSign Vice President Raj Puri. "They do it with specialized software that can isolate packets for a specific target."
Narus has little control over how its products are used after they're sold. For example, although its lawful-intercept application has a sophisticated system for making sure the surveillance complies with the terms of a warrant, it's up to the operator whether to type those terms into the system, says Bannerman.
That legal eavesdropping application was launched in February 2005, well after whistle-blower Klein allegedly learned that AT&T was installing Narus boxes in secure, NSA-controlled rooms in switching centers around the country. But that doesn't mean the government couldn't write its own code to do the dirty work. Narus even offers software-development kits to customers.
"Our product is designed to comply (with) all of the laws in all of the countries we ship to," says Bannerman. "Many of our customers have built their own applications. We have no idea what they do."
© 2018 Condé Nast. All rights reserved.
https://www.wired.com/2006/05/the-ultim ... ring-tool/33
Narus Announces Latest Product Upgrade: NarusInsight 8 Traffic Intelligence and Analytics System
Marketwire
Full IPv6 Support, Enhanced Performance and Efficiency, Additional System Hardening, and Multiple New Features and Functions to Support the Constantly Changing Demands of Cyberspace
SUNNYVALE, CA--(Marketwire - Mar 6, 2012) - Narus, Inc., the leader in real-time network traffic intelligence and analytics, today unveiled NarusInsight 8, which continues Narus' tradition of delivering situational awareness in an ever-changing cyber environment. The latest release fully supports IPv6, keeping pace with industry and government organizations as they adopt new standards. NarusInsight 8 also offers improved efficiency for existing software and enhanced performance for more powerful hardware. Support for additional system hardening required for government environments rounds out NarusInsight 8. With this release, Narus continues its leadership in providing enhanced situational awareness with its real-time traffic intelligence and analytics. NarusInsight now supports more than 1,000 netflow sources with more than 2,500 interfaces. NarusInsight comes complete with embedded connectors to world-class data warehouses such as Teradata and SEIMs such as ArcSight. Precision targeting provides packet capture capabilities for deep analytics and session reconstruction without the need for additional packet capture applications.
NarusInsight leverages a scalable, flexible and powerful architecture and a combination of patented, real-time traffic intelligence and cyber analytics to provide unique insight into the quality of the network and traffic and subsequently the security of any critical infrastructure. NarusInsight offers a total network view of heterogeneous networks, and provides deep insight into multiple layers of network traffic. The information is provided in real time, enabling customers to see clearly what is happening in their networks from Layer 2 though Layer 7, and use this information to quickly mitigate malicious activity and optimize network assets. Network operators are able to proactively guard against cyber threats and maintain the integrity, quality and efficiency of their network and data.
NarusInsight 8 offers some key features and functionality that protect against today's cyber threats and evolve with the threat landscape of tomorrow, setting it apart from its industry peers.
•Support for IPv6 - This latest release extends NarusInsight's real-time capture and processing capabilities to include IPv6. This is especially critical for government and large international organizations (healthcare and financial institutions included) that are leading the charge in adopting the latest industry standard. Most of today's security solutions operate using IPv4, and are unable to correctly parse and identify IPv6 connections. Cyber criminals seize on this lapse in visibility, creating IPv6 connections that are ignored by security solutions, and easily slipping into a network. With NarusInsight 8, the same features and functionality from previous releases supporting IPv4 are carried over to the IPv6 version.
•Increased efficiency, enhanced performance, improved scalability - With NarusInsight 8, existing software efficiency is increased by 25 percent on average, with no need for investment in new hardware. This ability to process vast quantities of data efficiently (at 10Gb/s) with no extra expenditure is a huge draw in today's cost-conscious economy. Moreover, NarusInsight 8 now supports more powerful hardware. This, combined with the efficient processing of large amounts of data, combines to deliver the perfect solution, even for big data environments.
•System hardening - Especially critical for government, financial services and healthcare organizations, NarusInsight 8 supports system hardening. This functionality reduces the areas of vulnerability by removing unnecessary software and disabling applications, thereby closing ports that may be easy entry points for hackers looking to invade a network.
"Our critical infrastructures are at the mercy of cyber criminals and constantly changing cyber environment, and the only way to ensure the quality of the data on these networks is to gain 'cyber intelligence' into the network traffic," said Greg Oslan, chief executive officer, Narus. "NarusInsight delivers the knowledge needed to ensure the protection of critical infrastructures, that data integrity remains intact and quality of life is maintained."
NarusInsight 8 is generally available in March. For more information, please visit
http://www.narus.com.
About Narus
Narus provides real-time network traffic intelligence and analytics software that analyzes IP traffic and flow data to map the digital DNA (or behavior) of the network in real time.
Through its patented analytics, Narus' carrier-class software detects patterns and anomalies that predict and identify security issues, misuse of network resources, suspicious or criminal activity, and other events that compromise the integrity of IP networks. The NarusInsight System is designed to be a next-generation Network Analysis and Visibility (NAV) solution integrated into a customer's operational environment, strengthening existing security and monitoring systems, while providing total traffic visibility across the network.
NarusInsight protects and manages the largest IP networks around the world, and has been deployed with commercial and government installations on five continents. Narus is a wholly owned subsidiary of The Boeing Company (NYSE: BA), and is headquartered in Sunnyvale, Calif., with regional offices around the world. To learn more about Narus and NarusInsight, please visit
http://www.narus.com.
Copyright ©2018 West Corporation. All rights reserved. Legal
http://www.marketwired.com/press-releas ... 628722.htm