OmniSwitch 7900-O32 Data Sheet

The Alcatel-Lucent Enterprise OmniSwitch 7900-O32 (OS7900-O32) is a high-performance, low latency switch for high-performance Data Centers.

Application Scenarios

ToR Switch
- Our next-generation, highest-capacity OmniSwitch for Data Center ToR use-cases. Breakout options include 2x 400G, 4x 200G and 8x 100G per port, with a maximum of 160 logical ports. This offers reduced cost and power per bit transferred. This type of spine switch helps to scale and enable the migration to 800G leaf connectivity in Data Centers
AI/ML Clusters
- Standards-based Ethernet networking for AI/ML training, fine-tuning & inference, leveraging low latency and high-throughput RoCEv2 (Remote Direct Memory Access (RDMA) over Converged Ethernet). This reduces the Job Completion Time (JCT) by using the cognitive routing and congestion management capabilities of the switch. Fully programmable telemetry enables sophisticated on-chip applications for highest network insight and efficient network management
High-Performance Computing
- The large number of high-capacity Ethernet ports enables server (and switch) interfaces to transition to higher speeds and denser networks. Enables the virtualisation of compute and storage with VxLAN switching and routing
Cloud DCI
- System is ready to support 800G OSFP ZR/ZR+/+6dBm for Cloud DCI scenarios

OSFP800 switch ports, each supporting 1 x 800 GbE (100G PAM4), or via breakout cables 2 x 400 GbE, 4 x 200 GbE or 8 x 100 GbE
OSFP800 switch ports also support 1 x 400 GbE (50G PAM4), 1 x 100 GbE (NRZ) and via breakout cables 2 x 200 GbE, 4 x 100 GbE or 8 x 50 GbE
Up to 30 W power budget per OSFP800 port
Incorporates Broadcom Tomahawk 5 switch series silicon:
- Highest Radix: Up to 160 logical ports on a single chip, low latency
- Cognitive/Adaptive routing and Dynamic Load Balancing (DLB) and Global Load Balancing (GLB)
- Advanced shared buffering
- Programmable in-band telemetry
- Supports end-to-end congestion control
- Power efficient due to a monolithic 5nm die
- Hardware-based link failover for network resiliency and reduced job completion time
- Support for VxLAN RIOT
BMC module with serial-over-LAN support
Contains e-fuses to protect transceivers and internal components
1 RU form factor
Supports hot/cold aisles with front-to-back/AFO/port intake airflow SKU and back-to-front/AFI/port exhaust airflow SKU
All ports on front; PSUs and fans accessible from rear
Hot-swappable, load-sharing, redundant 2400 W AC/DC PSUs
7 Hot-swappable fan modules with 6+1 redundant fans
Hardware switch pre-loaded with Open Network Install Environment (ONIE) for automated loading of compatible open source and Alcatel-Lucent Enterprise SONiC (ASON) or Alcatel-Lucent Enterprise Operating System (AOS-X) NOS offerings

Preliminary picture of the OS7900-O32, final product may look slightly different.

Switch Ports: 32 x OSFP800 800GbE
Logical Ports: Max. 160
Port Modes:
- 1 x 800G (8 lanes 100G PAM4)
- 2 x 400G (4 lanes 100G PAM4) breakout
- 4 x 200G (2 lanes 100G PAM4) breakout
- 8 x 100G (1 lane 100G PAM4) breakout
- 1 x 400G (8 lanes 50G PAM4)
- 2 x 200G (4 lanes 50G PAM4) breakout
- 4 x 100G (2 lanes 50G PAM4) breakout
- 8 x 50G (1 lane 50G PAM4) breakout
- 1 x 100G (4 lanes 25G NRZ)
Management Ports on Port Side:
- 1 x RJ-45 serial console
- 1 x RJ-45 1000BASE-T management
- 2 x SFP28 25G In-band management
- 1 x USB 3.0 storage port
Supported Transceivers and Cables:
- To be detailed later

Dimensions (WxDxH): 43.84 x 59.8 x 4.3 cm (17.26 x 23.54 x 1.69 in.)
Weight: TBD, with 2 PSUs and 7 fan modules installed
Fans: 7 Hot-swappable fan modules with 6+1 redundant fans
Storage Temperature: -40°C – 70°C (-40°F – 158°F)
Operating Temperature (front-to-back): 0°C – 40°C (32°F – 104°F)
- subject to used optics
Operating Temperature (back-to-front): 0°C – 35°C (32°F – 95°F),
- subject to used optics
Operating Humidity: 5% – 95% non-condensing
Operating Altitude: 1800 m

Switch is loaded with Open Network Install Environment (ONIE) soſtware installer
Compatible with the following NOS options:
- Open source options, Alcatel-Lucent Enterprise SONiC (ASON), Alcatel-Lucent Enterprise Operating System (AOS-X)

PSUs: 2 redundant, load-sharing, hot-swappable 2400 W AC/DC
AC PCU:
- AC input rating:
- 200-240 VAC at 50-60Hz (16 A/2400 W max.)
- AC PSU Inlet: IEC 60320 C20
- Power efficiency: TBD (without fan)
DC PCU:
- DC Input rating: TBD
- Power efficiency: TBD
Power Draw:
- TBD
Power Budget:
- For all 32 ports all with per-port maximum 30 W capability and actual deployment population subject to total power distribution boundary and thermal considerations.

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Preliminary version of the data sheet, subject to change without notice. Refer to officially published data sheet for offer & tender use