--- title: Excelfore adds Time Aware Shaper to Ethernet TSN protocol description: Know about Time-Aware Shaper, the newest addition to Excelore's Ethernet TSN protocol stack for in-car networks that increases network performance. image: https://excelfore.com/hubfs/Imported_Blog_Media/Excelfore-Automotive-TSN-with-TAS.jpg --- [Skip to content](https://excelfore.com/blog/excelfore-adds-time-aware-shaper-to-ethernet-tsn-protocol-stack-for-in-vehicle-networks#main-content) Join Excelfore at CAEV EXPO 2024 at KTPO Bengaluru, 14th -15th March. 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As in-vehicle networking continues to grow in importance, Ethernet is becoming an increasingly popular platform providing secure, high-speed, inexpensive solutions. To meet automotive requirements for deterministic network behavior, new protocols must be added onto Ethernet stacks to provide Audio/Video Bridging (AVB) and Time Sensitive Networking (TSN) These new protocols enable Ethernet to meet the demands of in-vehicle infotainment, control and safety systems. The Excelfore TAS protocols reside in network talkers and bridges with support for TSN enhancements including IEEE 802.1Qbv and 802.1Qci. The TAS provides a circuit-switched/ Time-Division-Multiplexed  (TDM) channel into the otherwise packet-based Ethernet network. This enables a specific time window to be guaranteed for the delivery of high priority traffic, for example for automotive control systems. The Excelfore TAS has demonstrated the ability to reduce the variance in measured propagation delays by more than 65% compared to Ethernet traffic without the TAS, ensuring deterministic sub-100 microsecond accuracy for time-sensitive traffic. Shrikant Acharya, CTO at Excelfore, said, “Excelfore has consistently played a leading role in [Ethernet AVB/TSN](https://excelfore.com/tsn-avb) implementations. Last year we presented the first working demonstration of IEEE 802.1ASrev grand master clock redundancy. In 2016 our AVB protocol stack was the first to be certified by the Avnu Alliance for both the talker and listener functions.” The Excelfore eAVB/TSN protocol stack, including the new TAS, is available for Linux, QNX, Integrity and Android operating systems, as well as a variety of smaller RTOSs (real-time operating systems). It is already running in cameras, video displays, head units, ECUs, and  network gateways  that bridge to CAN, LIN, and other popular automotive busses. Excelfore will demonstrate its market-leading in-vehicle networking solutions including the Time Aware Shaper at the [Automotive Ethernet Congress](https://www.automotive-ethernet-congress.de/), February 13-14 in Munich, Germany. Shrikant Acharya, CTO at Excelfore, will be present a session entitled “Implementation of a TSN Time Aware Shaper”, at 12:00 on February 14. The presentation describes Excelfore’s implementation of a TAS on an automotive-grade Ethernet network switch IC, including presentation of data from extensive testing of differing use cases and network configurations.   **About Excelfore** Excelfore, located in Silicon Valley*, is an innovative provider of cloud platform and connectivity applications for intelligent transportation. It provides middleware solutions for smart mobility networks that enable OEMs and suppliers to build the next generation of smart, autonomous and learning vehicles, fleets and associated infrastructure. Excelfore products include the eAVB/TSN™ protocol stack for in-vehicle Ethernet time-sensitive networking, as well as the cloud-to-vehicle eSync™ system for OTA updates, diagnostics and telematics. [www.excelfore.com](https://www.excelfore.com)*   **Press Contact:** Cynthia Hoye, Embedded PR Phone:  +1 [408-858-2602](mailto:408-858-2602) / E-mail: [ch@embedded-PR.com](mailto:ch@embedded-PR.com) **Reader Contact:**  [smartmobility@excelfore.com](mailto:smartmobility@excelfore.com) Excelfore is a registered trademark of Excelfore Corporation*.* ###### Category - [Blog](https://excelfore.com/blog/tag/blog) - [Product- Cloud eSync eDatX AI](https://excelfore.com/blog/tag/product-cloud-esync-edatx-ai) - [Press](https://excelfore.com/blog/tag/press) - [Media](https://excelfore.com/blog/tag/media) - [Product- In-vehicle Networks](https://excelfore.com/blog/tag/product-in-vehicle-networks) - [Case Studies](https://excelfore.com/blog/tag/case-studies) - [Delta Compression](https://excelfore.com/blog/tag/delta-compression) ###### Popular Post - [How Tata Motors and Excelfore are Delivering a Comprehensive Over-the-Air Software Update and Remote Diagnostics Platform, starting with the New Tata Sierra](https://excelfore.com/blog/tata-motors-excelfore-ota-software-update-remote-diagnostics-new-tata-sierra) - [Automotive Ethernet vs CAN vs LIN vs FlexRay Comparison | Excelfore](https://excelfore.com/blog/automotive-ethernet-vs-can-vs-lin-vs-flexray) - [Excelfore Delivers Production-Grade OTA and Remote Diagnostics Platform for Tata Motors with New Tata Sierra](https://excelfore.com/blog/excelfore-delivers-production-grade-ota-and-remote-diagnostics-platform-for-tata-motors-with-new-tata-sierra) - [SOME/IP vs DoIP Explained](https://excelfore.com/blog/some-ip-doip) - [Hero MotoCorp Adopts eSync from Excelfore for Over-the-Air Vehicle Updates](https://excelfore.com/blog/hero-motocorp-adopts-esync-from-excelfore-for-over-the-air-vehicle-updates) ###### Subscribe ### Leave a Comment ### Similar Blogs #### [Excelfore Offers OTA Updates and In-Vehicle Network Options](https://excelfore.com/blog/excelfore-to-demonstrate-in-vehicle-networking-and-ota-updates-at-tu-automotive-expo) By [Mark Singer](https://excelfore.com/blog/author/mark-singer) 31 May 2017 **Delivers end-to-end connected car solutions working with Tier-1 automotive suppliers** [READ MORE](https://excelfore.com/blog/excelfore-to-demonstrate-in-vehicle-networking-and-ota-updates-at-tu-automotive-expo) ![In Vehicle Networks in Connected Vehicle Ecosystems | Excelfore](https://excelfore.com/hs-fs/hubfs/Automotive%20Ethernet-1.png?width=352&name=Automotive%20Ethernet-1.png) #### [In Vehicle Networks in Connected Vehicle Ecosystems | Excelfore](https://excelfore.com/blog/in-vehicle-networks-in-connected-vehicle-ecosystems) By [Excelfore](https://excelfore.com/blog/author/excelfore) 15 July 2025 The automotive industry is undergoing a rapid digital transformation. 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