The OpenZR+ Multi-Source Agreement (MSA) Group announced the results of two successful interoperability test events at LightRiver and featuring coherent optical transceivers from Cisco, Coherent, Fujitsu, Juniper Networks, and Lumentum operating on Cisco and Juniper routers.
The testing demonstrated compatibility to the OpenZR+ specification and interoperability between optical transceiver modules from different vendors in two different routers by transporting 400 Gbps traffic over various optical links.
Highlights:
- Phase 1 (August 2023): Verification that optical transceiver QSFP-DD-DCO modules comply to the OpenZR+ multi-source agreement in router platforms through the OIF CMIS compliant interface in loopback mode. Also verify that optical transceiver QSFP-DD-DCO modules from different vendors interoperate over a Single-Span link with 75 km of fiber.
- Phase 2 (September 2023): Multi-vendor Interoperability and performance testing over multi-span optical line system (OLS).
The OpenZR+ MSA Group also published a whitepaper that notes:
- 400G OpenZR+ optical transceiver modules from multiple vendors operated in different routers
- All 400G OpenZR+ optical transceiver modules transported traffic with no post-FEC bit errors at receiver OSNR of 24 dB or less
- 400G OpenZR+ optical transceiver modules from five different vendors interoperated with each other
- 400G traffic was transported over a typical DCI use case with 75 km of fiber and a typical metro use case with multi-spans over 430 km of fiber.
"The results of this multi-vendor interoperability testing validate the readiness of network operators to take advantage of 400G pluggables in order to cost-effectively scale their networks to meet growing bandwidth demands," said Tom Williams, Co-chair of the OpenZR+ MSA Group.
"Not only does interoperability enable a more robust supply chain in the industry by allowing network operators to mix and match equipment and services from different providers, but it can also accelerate the adoption of new technology," said Atul Srivastava, Co-chair of the OpenZR+ MSA Group.
The whitepaper can be downloaded from the OpenZR+ MSA Group website.
- in September 2023, the OpenZR+ Multi-Source Agreement (MSA) Group published the OpenZR+ Rev 3.0 specification which defines a higher performing 400G 8QAM mode as well as a higher transmit power mode.The new specification is designed to further expand the application space for a coherent solution in small form factor pluggable modules, such as form factors defined by the QSFP-DD MSA and OSFP MSA.
