What is Time Sensitive Networking (TSN)?
Defined by the IEEE 802.1 working group, Time-Sensitive Networking (TSN) is a set of standards aimed at enabling highly deterministic services and redundant networking operation for control and other latency-sensitive traffic in Ethernet networks. The standards define traffic streams that can be scheduled to meet stringent performance guarantees such as bounded latency, latency variation, and minimal loss of packets. Due to congestion and buffering at network nodes, best-effort Ethernet traffic may generally be lossy with uncertain packet latencies.
Control applications such as automotive, industrial, and increasingly 5G communications, have strict deterministic requirements that demand ubiquitous TSN features in their networks. TSN provides a way to provide real-time determinism and low latency connectivity, enabling distribution of this time-critical traffic over standard Ethernet networks.
Innovative TSN Technology from Micrsoemi
Microsemi’s TSN implementation is engineered to provide comprehensive support for time sensitive networking and all its features. Our TSN technology spans small to large chip sizes, as well as up and down the bandwidth spectrum, giving customers a single-source for designing low-latency and highly deterministic Ethernet networking equipment for industrial, communications and automotive applications.
Coupled with Microsemi’s IEEE 1588 technology expertise, our embedded TSN technology delivers what you need for deterministic service delivery and redundant networking operation over Ethernet.
Want to speak to an expert? Contact your local Microsemi sales office today.
Overview
GPS Spoofing and Jamming Vulnerabilities in the real world:
Security and protection of a network and Position, Navigation and Time (PNT) application is always a high priority and GPS technology is the key to deployment of these applications. The vulnerability of GPS to interference is not a new phenomenon. GPS signals are extremely weak and highly vulnerable to jamming and spoofing resulting in partial or complete loss of GPS signal. There are certain natural phenomenon like solar flares and other physical environmental conditions which interfere with GNSS signals.
However, these days more and more instances of jamming, complex jamming, and spoofing are surfacing across the globe. The frequency of these events is growing rapidly as reported in the news. It is driven by geopolitical tension in many parts of the world and there are concerns about the next battle front of cyberspace. But there are many other building examples of spoofing (e.g., Uber drivers spoof to change location of their vehicles, Pokemon GO spoofing, intentional drone interference, Fleet tracking interruption, etc….) that are becoming more commonplace and have potential to wreak havoc on critical infrastructure and applications we take for granted that are dependent upon reliable and accurate GPS signal.
Securing Position, Navigation and Time (PNT) as used by Critical Infrastructure:
GNSS-based errors, whether intentional or unintentional, can quickly impact a vast geography and widely dispersed locations. Additionally, a large variety of operational environments must be accounted for that not only includes outside deployment with a clear view of the sky, but highly obstructed locations, urban canyons, and in-building and in-cabinet scenarios.This solution for securing PNT focuses on a network approach based on layers of resiliency that can be deployed cost effectively across infrastructure with 10s, 100s, 1000s, or even 10,000s of nodes. These layers are built using a broad array of technologies, including GNSS anti-jamming and anti-spoofing technology, time transport protocols, atomic clocks, and software management and monitoring.
Resources
Blog Articles / Updates
Topic | Author | Date Published |
The invisible Utility - PNT (Position, Navigation and Timing) | Greg Wolff | 22-Mar., 2018 |
If you can't measure it, you can't fix it | Greg Wolff | 22-Mar., 2018 |
Autonomous Clocks and TimeScale Technology | Greg Wolff | 22-Mar., 2018 |
Miniature Atomic Clocks | Greg Wolff | 22-Mar.,2018 |
Use a GPS Firewall for Secure Sky Reception | Greg Wolff | 22-Mar., 2018 |
Securing Position, Navigation and Timing (PNT) as used by Critical Infrastructure | Greg Wolff | 22-Mar., 2018 |
GNSS Errors impacting Position, Navigation and Timing (PNT) | Greg Wolff | 22-Mar., 2018 |
Critical Infrastructure Expansion | Greg Wolff | 22-Mar., 2018 |
Protecting Critical Infrastructure - Time may not be on your side | Greg Wolff | 22-Mar., 2018 |
Improved Immunity from GPS Jamming and Spoofing for Military Systems | Paul Skoog | 14-Dec., 2017 |
BlueSky GPS Firewall - Breakthrough technology to secure against GPS Jamming and Spoofing | Paul Skoog | 13-Dec., 2017 |
White Papers
Other Collateral
Topic | Type of Document | |
How NTP Servers with Atomic Clocks Protect Against GPS Jamming/Denial to Maintain Accurate Network Time | Webinar Presentation | |
BlueSky GNSS Firewall Brochure | Product Brochure | |
Customer Webinar Mitigating GPS Vulnerabilities in Mission Critical Applications | Webinar Presentation | |
Securing GNSS with PTP and SyncE | Webinar Presentation | |
Mitigating GNSS Vulnerabilities in Commercial Network Timing Apps | Webinar Presentation | |
Multi-GNSS Constellation Technology SyncServer S6xx Series | Application Note |
Videos & Webinar
Microsemi BlueSky GNSS Firewall - Demonstration of GPS Protection against Jamming and Spoofing Attacks | Microsemi BlueSky GNSS Firewall protects Critical Infrastructure from loss of GPS threats (Jamming and Spoofing) | |
World's first Chip Scale Atomic Clock (CSAC) by Microsemi is used for holdover applications in harsh environments where there is a possibility of losing the GPS signal. |
What is Software Defined Storage?
Like everything “software-defined” (SDx), software-defined storage (SDS) is simply a class of storage solutions automated by software. By separating the control and management software from the physical storage hardware, these virtualized networks may link large pools of storage media and appear as a single virtual entity.
With redundancy moving into the operating system layer, this safeguard can now span the entire solution. However, SDS does not offer CPU offload in the same way that hardware RAID storage solution would.
Microsemi SDS Technology
Microsemi’s smart storage technology delivers two levels of SDS options:
- HBA for raw performance with optimal power
- SmartHBA (basic RAID) which adds redundant SDS stack boot capabilities
Smart Storage Platform Advantages
- Reliability: >30 million deployments
- Performance: >70% boost in IOPs
- Power: >40% power savings
- Security: Industry’s only data-at-rest controller-based encryption
Unified Drivers, Firmware & Management Tools
Microsemi’s smart storage portfolio offers a consistent, high-quality user experience with unified drives, firmware, and management tools. This unified stack improves overall customer experience, delivering reliability, consistent performance and reduced qualification time.
Microsemi’s SDS technology is well-suited for multiple applications such as:
- Hyperconverged infrastructure
- Cold storage
- SSD-centric server applications with cacheless RAID 0,1,10
- HDD-centric performance applications which benefit from caching
Overview
Reduce Power Consumption with EEPoE
Improving Power over Ethernet (PoE) system efficiency requires minimizing power losses across the entire length of the power chain. Contributing factors range from power conversion at the PoE power sourcing equipment (PSE) output, through power delivery to the powered device (PD), and conversion back to the various needed voltages. Therefore, ways to minimize power losses to the power supply, PSE and PDs (including the PoE ICs comprising them) along with the channel (including cable, patch panel and connectors) must be considered.A multi-pronged technology approach to improving overall system efficiency is ideal, as it improves the economics of wireless network deployments in various market applications, such as digital ceiling smart LED lighting or smart buildings with enterprise IoT. Key considerations include:
- EEPoE midspans with remote management capabilities enable network upgrades to PoE without any infrastructure changes
- For endpoints, such as IP phones, cameras, WLAN access points and other PDs, PD front-end ICs must reduce the size, cost and complexity of next generation energy-efficient PDs
- Finally, the ability to support four-pair powering to minimize cable losses is imperative
This approach enables use of a more efficient power supply and builds power efficiency into the PSEs, PDs (and the ICs inside them). It also leverages four-pair powering to reduce power losses on the cables.
Microsemi's exclusive EEPoE technology cuts the power losses on Ethernet cables by 50%, through the utilization of all the copper available on cable when a Microsemi EEPoE PSE IC or Midspan is used. It is 100% compatible with IEEE802.3at, and the savings work with ANY IEEE 802.3at Type 2, Type 1 or IEEE 802.3af compliant PD. In practice, devices that consume 25.5W would consume less than 27.75W, instead of the worst case 30W when a non-EEPoE PSE is employed.
Resources
Learn More about EEPoE
- Understanding IEEE 802.3at PoE Plus
- Cutting Power Consumption with Energy Efficient PoE (EEPoE)
- Next-Generation PoE: IEEE 802.3bt White Paper
Related Products
What is RAID?
RAID, or Redundant Array of Inexpensive Disks, is a data storage structure enabling a data center to combine two or more physical storage devices, such as HDDs, SSDs, or both, into a logical unit that the attached system views as a single drive.
RAID can either be hardware-based or software-based, each approach having its own pros and cons.
Hardware RAID resides on a PCI-X or PCIe controller card, or on a motherboard-integrated RAID-on-Chip (ROC). With the RAID tasks offloaded from the host system, this approach offers several benefits such as better performance than software RAID. Controller cards are easily swappable for replacement or upgrades. Hardware-based RAID also permits data backup to prevent loss in case of a power failure.
In contrast, software RAID runs entirely on the host system CPU. While lower cost due to lack of RAID-dedicated hardware, this implementation comes at the cost of performance, since the CPU also powers the operating system and other applications. There is also no data backup with the software RAID approach.
Microsemi Hardware RAID Technology
Microsemi’s smart storage technology delivers two levels of hardware RAID options:
- SmartRAID (advanced hardware RAID) with maximum featured RAID data protection and caching for HDD performance
- SmartHBA (basic RAID) with standard RAID data protection and uncompromised HBA performance
Smart Storage Platform Advantages
- Reliability: >30 million deployments
- Performance: >70% boost in IOPs
- Power: >40% power savings
- Security: Industry’s only data-at-rest controller-based encryption
Unified Drivers, Firmware & Management Tools
A unified stack and comprehensive software suite underpin Microsemi’s smart storage portfolio, improving overall end customer experience vis-à-vis reliability, consistency of performance, and reduced qualification time.
Further exclusive to Microsemi is its standards-based PQI host OS driver, which is a unique architecture built to benefit both hardware RAID and Software Defined Storage (SDS) use cases. PQI drivers are highly optimized for memory-based storage devices (SSDs) and reduce host CPU load while minimizing latencies.
Microsemi’s hardware RAID technology is well-suited for multiple applications such as:
- SMB HDD or hybrid applications requiring RAID 0,1,10,5
- High performance enterprise servers with maximum data availability
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