Arista Touts 400G ZR Interoperability Testing
February 17, 2021
Networks touted successful interoperability testing between multiple 400G ZR
suppliers over Microsoft’s 120km open line system testbed. This multi-vendor
testing sets the foundation for a healthy, interoperable, coherent optics
ecosystem, providing customers with a multitude of options for building high
speed Data Center Interconnect (DCI) networks.
400G ZR is an ideal fit for cloud service providers' next generation DCI
networks as it addresses the need for interoperable, high- density and
cost-effective metro capacity. With the same density as standard grey optics,
the technology offers up to 25Tbps of bandwidth in a single fiber pair by
squeezing spectrally efficient coherent signals into standard QSFP-DD modules.
Next-generation routers with enhanced thermal management need to accommodate
different 400G ZR vendors and are key to enabling a viable multi sourced
ecosystem. With the support of Arista's 7800R3 routing platforms, Microsoft’s
transmission testing confirmed excellent optical and thermal performance over a
variety of 400G ZR vendors.
Chaouch, Distinguished Engineer at Arista Networks commented, "We are very
pleased with the demonstrated performance of the 400G ZR transceiver modules.
Being able to seamlessly support modules from multiple 400G-ZR vendors on our
standard routing platforms constitutes a significant advancement in the DCI
Jamie Gaudette, Principal Engineering Manager of Microsoft’s Backbone Network
said, “We are pleased with the progress on 400G ZR. Thanks to our collaboration
with OIF, we’ve achieved multi-vendor interoperation and cost effective 400G
transport, allowing Microsoft to offer more bandwidth to our customers and
accelerate our datacenter expansion.”
The Arista 7800R3 is optimized for large scale cloud networks with up to 460Tbps
of capacity, combining 100G and 400G performance with comprehensive features for
Service Provider, Cloud WAN, Content Edge and Data Center Interconnect (DCI).