400G optical line system simplifies DWDM network deployments

March 30, 2020
Arista Networks' OSFP-LS module collapses a DCI line system into a compact OSFP MSA-compliant package.

Arista Networks (NYSE: ANET) has introduced an optical line system in an OSFP (Octal Small Form-factor Pluggable) module form factor.

Billed as "a highly compact, low power and cost-effective solution for increasing bandwidth between data centers without the need for external optical line systems," Arista says its OSFP-LS addresses the needs of Tier2 Cloud and Internet Service Providers for high bandwidth links that are easy to deploy and operate.

The OSFP-LS collapses legacy optical line systems into an OSFP module which can be plugged into any Arista OSFP port, supporting up to 8 DWDM wavelengths with a single fiber pair, and delivering up to 3.2 Tbps of DCI traffic over 100 km.

“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,” commented Hacene Chaouch, Distinguished Engineer, Arista Networks. "Interconnecting two data center sites with DWDM becomes as simple as connecting two switch ports."

The company notes that its OSFP-LS line system was purposely conceived and designed for the support of 400G ZR digital coherent optics. Per Arista, customers building 400G-ZR DCI and metro networks may achieve the following key benefits with OSFP-LS: reduced space, power and cost; automatic setup with no operator configuration required; consistent EOS monitoring and control of both 400G ZR and OSFP-LS; and lower opex by leveraging a fully collapsed WDM transport system.

The OSFP-LS is in testing and qualification now with availability in 2H 2020. Learn more at at www.arista.com.

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