Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 
ON THIS PAGE
 

800ZR and 800G OpenZR+

Overview

The 800ZR is an Optical Interworking Forum (OIF) standard for transporting 800GbE over long distances through fiber-optic patch cables. The standard defines the solution to transport 800GbE optical signals using a single wavelength.

The primary application of 800ZR optics is to interconnect data centers within a distance of up to 450 km. Data centers require high bandwidth, high speed, and low latency networks. The 800ZR optical module meets these requirements.

800G OpenZR+ is an extension of 800ZR specifications to improve performance and adheres to OpenZR+ MSA standard.

Some characteristics of the 800ZR and 800G OpenZR+ optics are:

  • Configuration of different speeds and negotiation between capacity and reach. For example, 800 Gbps can support a nominal reach of 450 kms, 600 Gbps up to 900 kms, and 400 Gbps up to 1800 kms.
  • Capacity to carry the signals across long distances through fiber-optic patch cables with periodic optical amplification.
  • Fully C-band tunable and dense wavelength-division multiplexing. We support 6.25/12.5/50/75/100 GHz channel spacings.
  • Ability to operate in amplified and unamplified modes.

Transceiver Specifications

Form Factor

Juniper's coherent 800G transceivers make use of the QSFP-DD800 form factor (commonly referred as QSFP-DD). For more information on the QSFP-DD form factor, see QSFP-DD.

Juniper 800ZR and 800G OpenZR+ Transceivers

Juniper's coherent 800G transceivers cater to data center and AI-ML cluster applications for routing and switching solutions. To support the multi-vendor network environment, Juniper 800G transceivers adhere to key industry standards.

For a list of all 800G optics and their supported platforms for 800ZR and 800 OpenZR+, see Hardware Compatibility Tool.

Connector Types

Juniper’s coherent 800G transceivers support duplex LC PC/UPC connector type. For more information, see Connector Types.

Patch Cable Type and Length

Juniper’s 800G coherent optics utilize SMF to achieve extended reach across high-density optical links. For information on fiber media and patch cable lengths, see Patch Cable and Length.

Breakout Capabilities

Juniper's coherent 800G transceivers operate over single-mode fiber (SMF) using duplex optical connectors (commonly LC). Unlike conventional Ethernet optics that rely on multiple parallel optical lanes and support physical breakout cables, coherent modules transmit traffic on a single modulated optical wavelength.

These optics provide muxponder-like functionality by mapping client traffic into a single coherent carrier and support software-selectable operating rates (such as 100 GbE, 200 GbE, or 400 GbE). The selected mode adjusts parameters such as modulation format and forward error correction to optimize link reach and meet optical signal-to-noise ratio (OSNR) requirements.

Because the transmission uses a single coherent wavelength, the optical signal cannot be physically split into multiple interfaces using breakout cables. Any separation of transported Ethernet traffic occurs only after coherent demodulation at the receiving system. The receiving platform may then map the received client traffic to logical interfaces or, depending on platform capabilities, to separate physical Ethernet interfaces.

The 800G OpenZR+ coherent transceivers support the following rate selections:

  • 1 x 800GbE

  • 2 x 400GbE

  • 4 x 200GbE

  • 8 x 100GbE

  • 3 x 200GbE

  • 6 x 100GbE

  • 1 x 400GbE

  • 2 x 200GbE

Licensing

You need a Juniper Coherent Optics or Third-party Coherent Optics Software License to use the 800ZR and 800G OpenZR+ coherent DWDM transceivers on Juniper devices. For information about the licensing model for the coherent 800ZR and 800G OpenZR+ optics, see Software Licenses for Juniper Coherent Optics. For additional information about License management, see Licensing Guide. You can also contact your Juniper Account Team or Juniper Partner.