Key Features and Benefits
- QSFP56-DD switch ports, each supporting 1 x 400G QSFP56-DD, 1 x 100G QSFP28, 1 x 40G QSFP+, or via breakout cables 2 x 200G (2 x 4 lanes 50G PAM4), 4 x 100G (4 x 2 lanes 50G PAM4), 2 x 50G (2 x 2 lanes 25G NRZ), 4 x 25G NRZ, or 4 x 10G NRZ.
- Incorporates Broadcom Tomahawk 4 switch series silicon.
- 2 RU form factor.
- Supports hot/cold aisles with front-to-back airflow SKU.
- All ports on front; PSUs and fans accessible from rear.
- Hot-swappable, load-sharing, redundant 2400 W AC/HVDC PSUs.
- 3+1 redundant, hot-swappable fan modules.
- Hardware switch pre-loaded with Open Network Install Environment (ONIE) for automated loading of compatible open source and commerical NOS offerings.
- Compatible with Open Network Linux (ONL), the open-source, OCP reference NOS.
Interfaces

Models

Ports
Switch Ports: 64 x QSFP56-DD 400 GbE Port Modes:
1 x 400G (8 lanes 50G PAM4)
2 x 200G (4 lanes 50G PAM4) QSFP56-DD breakout
4 x 100G (2 lanes 50G PAM4) QSFP56-DD breakout
1 x 100G (4 lanes 25G NRZ) QSFP28
1 x 40G (4 lanes 10G NRZ) QSFP+
2 x 50G (2 lanes 25G NRZ) QSFP28 breakout
4 x 25G (1 lane 25G NRZ) QSFP56-DD breakout
4 x 10G (1 lane 10G NRZ) QSFP56-DD breakout
Management Ports on Port Side:
1 x RJ-45 serial console
1 x RJ-45 1000BASE-T management
2 x SFP+ 10G management
1 x USB 2.0 storage port
Supported Transceivers and Cables:
100GBASE-SR4/CWDM4/LR4
100G-DAC/AOC Cable
400BASE-FR4
400G-DAC/AOC Cable
Key Components
Switch Silicon: BCM56990 Tomahawk 4
CPU Modules:
Intel® Xeon® Processor D-1548 8-Core 2.0 GHz
DDR4: 16 GB x 2 SO-DIMM
m.2 SSD: 128GB x 1
Performance
Switching Capability: 25.6 Tbps full duplex
Forwarding Rate: 10.42 Bpps
Jumbo frames support up to 9416 bytes
Packet Buffer Size: Integrated 113.66 MB packet buffer
Subject to NOS:
MAC Addresses: 8K for exact match
128K without exact match
Physical and Environmental
Dimensions (WxDxH): 44 x 64.92 x 87 cm (17.32 x 25.56 x 34.25 in)
Weight: 21.5 kg (47.4 lb), with 2 PSUs and 4 fans installed
Fans: Hot-swappable 3 + 1 redundant fans
Storage Temperature: -40°C to 70°C (-40°F to 158°F)
Operating Temperature:
(FtoB): 0°C~40°C (32°F~104°F)
0~40°C (32°F~104°F) at sea level,
0~35°C (32°F~95°F) at 1828 m (6000 ſt)
Operating Humidity: 5% ~ 95% non-condensing
Operating Altitude: 0-1828 m (0~6000 ſt)
Soſtware
Switch is loaded with Open Network Install Environment (ONIE) soſtware installer
Compatible with the following NOS options:
Open Network Linux (ONL), the open-source, OCP reference
NOS, Enterprise SONiC by Edgecore
System and Port LEDs
QSFP56-DD Port LEDs:
400G (1 x 8 lanes 50G PAM4): Blue
200G (2 x 4 lanes 50G PAM4): Cyan
100G (4 x 2 lanes 50G PAM4): Green
100G (1 x 4 lanes 25G NRZ): Green
40G (1 x 4 lanes 10G NRZ): Dark Green
50G (2 x 2 lanes 25G NRZ): Red
25G (4 x 1 lane 25G NRZ): Orange
10G (4 x 1 lane 10G NRZ): Yellow
Management Port LEDs:
SFP+: Leſt: Green (10G link), Amber (1G link)
Right: Green (10G activity), Amber (1G activity)
RJ-45: Leſt: Green (1G link), Amber (10/100M link)
Right: Green (1G activity), Amber (10/100M activity)
System LEDs: PSU1, PSU2, FAN, STAT, and LOC
Reset button
Power
PSUs: 2 redundant, load-sharing, hot-swappable 2400 W AC/HVDC power supplies
AC PSU
Input Power Rating:
100–127 VAC, 50/60 Hz, 12 A maximum
200–240 VAC, 50/60 Hz, 15 A maximum
HVDC: 240 VDC, 15 A maximum
Power Draw: 287.75 W (min.), 2100 W (max.)
Power Budget:
Ports 1, 2, 3, 4, 29, 30, 31, 32, 33, 34, 35, 36, 61, 62, 63, 64: 24 W
per transceiver
All other ports: 13 W per transceiver
Regulatory
Emissions:
EN 55032 Class A
EN 61000-3-2
EN 61000-3-3
VCCI-CISPR 32 Class A
AS/NZS CISPR 32 Class A
ICES-003 Issue 7 Class A
FCC Class A
Immunity:
EN 55035
IEC 61000-4-2/3/4/5/6/8/11
Safety:
UL (CSA 22.2 No 62368-1 & UL62368-1)
CB (IEC/EN60950-1 & IEC/EN 62368-1)
Environmental:
GR63-CORE (Pre-test)
RoHS-2.0 Compliant
Electrical and Electronic Equipment (WEEE Directive 2002/96/EC)