Arista eases data centre connectivity with new 400G module

Created March 13, 2020
Technologies and Products

Arista Networks has unveiled an optical line system in an OSFP (octal small form-factor pluggable) module. It is a compact, low power and cost-effective solution for increasing bandwidth between data centres without the need for external optical line systems.

The Arista OSFP-LS addresses the needs of Tier2 cloud and internet service providers for high bandwidth links that are easy to deploy and operate, said Arista. It collapses legacy optical line systems into an OSFP module that can be plugged into any Arista OSFP port, supporting up to eight DWDM wavelengths with a single fibre pair, and delivering up to 3.2Tbps of DCI traffic over 100km.

“The OSFP-LS is far easier to deploy than conventional external line systems that require their own power feed and control management software while consuming valuable rack space. Interconnecting two data centre sites with DWDM becomes as simple as connecting two switch ports,” said Hacene Chaouch, distinguished engineer at Arista Networks.

The line system is designed for the support of 400G ZR digital coherent optics. Customers building 400G ZR DCI and metro networks achieve key benefits such as reduced space, power and cost; automatic setup with no operator configuration required; consistent EOS monitoring and control; and lower opex by leveraging a fully collapsed WDM transport system.

The OSFP-LS is currently in testing and qualification mode and will be available in the second half of 2020, said Arista.

Last autumn, Netherlands-headquartered operator WorldStream said it was building an “elastic” virtual network on top of its 10Tbps-plus global backbone with optical technology from Arista. The new software-defined WorldStream Elastic Network uses the EVPN (Ethernet Virtual Private Network) VXLAN (Virtual Extensible LAN) technology from Arista.

The network is intended to bring the company’s global client base “ultimate flexibility” and “tons of added functionality” with regard to their hybrid IT infrastructure deployments and data centre resource allocation, said the operator at the time.

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This article was written
by Antony Savvas

Antony Savvas is a global technology journalist covering the key trends in the communications industry, and was there at the beginning of mobile business and ICT convergence, the move to the cloud and now digital transformation