Arista Networks, Inc. Transceivers

The explosive growth in demand for bandwidth has dramatically changed data center architectures driving higher port counts to scale the server connectivity and the leaf-spine architectures. One of the challenges facing the network architects is the physical connectivity of the switches and servers. There is no single copper or fiber solution that can solve the data center connectivity problem. Data rate, interoperability and cost are some of the key factors in determining the optimal physical layer device. Arista Networks offers a wide range of optical transceivers and cables with guaranteed plug and play operation with Arista switches providing cost optimized solutions and ultimate deployment flexibility. QSFP100 Transceivers QSFP100 (a.k.a QSFP28) is emerging as the preferred form factor for 100Gigabit Ethernet Data Center applications because of its small size and low power consumption which enables highest port density. With the advent of several Multi-source agreements and silicon photonics based Optical transceivers QSFP100 form factor promises to offer cost effective solutions for legacy fiber deployments as well as green field deployments. Arista plans to offer a broad range of QSFP100 transceivers and cables to support various link lengths and fiber types for 100G switch to switch and 25G/50G switch to server connectivity. Arista 40G Universal Transceiver One of the challenges in migrating from 10G to 40G network has been the deployed multi-mode fiber infrastructure. 10GBASE-SR optics operated on duplex fiber (one for transmit and one for receive). However, 40GBASE-SR4 was defined to operate over parallel fiber (four fibers for transmit and four for receive). This increase in fiber count requires deployment of additional fiber to migrate from 10G to 40G. Arista addresses this challenge with the 40G Universal transceiver. The Arista QSFP-40G Universal transceiver is a pluggable optical transceiver in an industry standard QSFP+ form factor that can operate up to 150m over existing duplex multi-mode fiber. It can also be used with singlemode fiber for distances up to 500m which provides investment protection when migrating from multi-mode fiber to single-mode fiber infrastructure. Arista 40G UNIV is based on industry standard IEEE 40GBASE-LR4 and is 100% interoperable with any IEEE 40GBASE-LR4 or LRL4 optics making it easy to connect to other routers and switches. It supports full Digital Optical Monitoring (DOM) and passive Network Taps for link quality monitoring and passive data analysis.