juniper QFX Series QFX5130-32CD
The Juniper QFX5130-32CD is a 1U high-capacity cloud spine and leaf switch powered by Broadcom Trident 4 programmable silicon. Providing 32 ports of 400GbE QSFP-DD with backward compatibility for 100GbE QSFP28, the switch delivers 25.6 Tbps of line-rate switching capacity. Engineered for AI/ML training fabrics, cloud-scale multitenancy, and ultra-high-density interconnects, the QFX5130 runs Junos OS Evolved with containerized microservices and automated telemetry streaming.
Specifications
| Brand | juniper |
|---|---|
| Family | QFX Series |
| Form factor | 1U fixed switch |
| Released | Oct 2020 |
| Ports | 32x 400GbE QSFP-DD ports |
| Switching capacity | 25.6 Tbps / 5.35 Bpps forwarding performance |
| Silicon | Broadcom Trident 4 programmable 7nm packet processing silicon |
| Operating system | Junos OS Evolved Linux-based containerized microservices architecture |
| Breakout options | Supports 4x 100GbE, 2x 200GbE, or 8x 50GbE breakouts per QSFP-DD port |
Generations
- Previous generation: juniper QFX Series QFX5120-32C
Works together
How the juniper QFX Series QFX5130-32CD connects to servers, storage and the network: 4 ways, with the parts and products on each path.
iSCSI and NVMe/TCP over Ethernet
Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.
Servers
HPE ProLiant DL325 Gen10 Plus 1U rack
HPE ProLiant DL385 Gen10 Plus 2U rack
HPE ProLiant MicroServer Gen10 Plus desktop
HPE Edgeline EL8000 5U ruggedized edge system
HPE ProLiant DL325 Gen10 Plus v2 1U rack
HPE ProLiant DL345 Gen10 Plus 2U rack
Adapters for the server
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
540-BDCP Dell Broadcom 57508 Dual Port 100GbE QSFP56 PCIe Gen4 Adapter
Storage
Lenovo ThinkSystem DM7100H 4U rack
Lenovo ThinkSystem DM5100F 2U rack
Dell PowerStore 1200T 2U rack
Dell PowerStore 3200T 2U rack
Dell PowerStore 5200T 2U rack
Dell PowerStore 9200T 2U rack
Optics
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
File storage (NFS and SMB)
Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.
Servers
- HPE ProLiant DL325 Gen10 Plus 1U rack
- HPE ProLiant DL385 Gen10 Plus 2U rack
- HPE ProLiant MicroServer Gen10 Plus desktop
- HPE Edgeline EL8000 5U ruggedized edge system
- HPE ProLiant DL325 Gen10 Plus v2 1U rack
- HPE ProLiant DL345 Gen10 Plus 2U rack
Adapters for the server
- BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
- 540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
- 540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
- 540-BDCP Dell Broadcom 57508 Dual Port 100GbE QSFP56 PCIe Gen4 Adapter
Storage
Dell PowerScale F600 1U rack- Lenovo ThinkSystem DM7100H 4U rack
- Lenovo ThinkSystem DM5100F 2U rack
Dell PowerScale F900 2U rack
Dell PowerScale H700 4U- Dell PowerStore 1200T 2U rack
Optics
- QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
- QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
- 407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
Hyperconverged cluster
Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.
HCI nodes
HPE SimpliVity 380 Gen10 G 2U rack
HPE SimpliVity 325 Gen10 Plus v2 1U rack
HPE SimpliVity 325 Gen10 1U rack
HPE SimpliVity 380 Gen10 2U rack
Adapters for the server
- BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
- 540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
- 540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
- 540-BDCP Dell Broadcom 57508 Dual Port 100GbE QSFP56 PCIe Gen4 Adapter
Optics
- QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
- QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
- 407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
GPU cluster fabric
InfiniBand adapters and switches must match the generation: HDR is 200Gb, NDR is 400Gb. VPI adapters such as ConnectX-6 and ConnectX-7 can run either InfiniBand or Ethernet.
Servers
HPE Apollo 6500 Gen10 Plus 4U rack
Lenovo ThinkSystem SR860 V2 4U rack
Dell PowerEdge XE8545 4U rack
Lenovo ThinkSystem ST650 V2 tower
Lenovo ThinkSystem SR670 V2 3U rack
HPE ProLiant DL385 Gen11 2U rack
GPUs
NVIDIA Data Center GPU A100 SXM4 80GB SXM4 module
NVIDIA Data Center GPU A40 PCIe 4.0 dual-slot full-height full-length
AMD Instinct MI250X OAM (OCP Accelerator Module)
NVIDIA Data Center GPU A10 PCIe single-slot full-height full-length
Adapters for the server
540-BCVE Dell NVIDIA Mellanox ConnectX-6 VPI Single Port 200Gb/s HDR InfiniBand / 200GbE PCIe Adapter
540-BDDW Dell NVIDIA Mellanox ConnectX-6 VPI Dual Port 200Gb/s HDR InfiniBand / 200GbE PCIe Adapter
540-BDRV Dell NVIDIA Mellanox ConnectX-7 Dual Port 400Gb/s NDR InfiniBand / 400GbE PCIe Gen5 Adapter
MCX556A-ECAT NVIDIA ConnectX-5 VPI Dual-Port 100Gb/s EDR InfiniBand and 100GbE QSFP28 PCIe 3.0 x16 Adapter
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- iSCSI explained mrplanb.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- Network monitoring tools compared mrplanb.com
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the juniper QFX Series QFX5130-32CD.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
Equivalent models from other brands
FAQ
Can standard 100GbE QSFP28 optics plug into the 400GbE QSFP-DD ports?
Yes, QSFP-DD ports are backward compatible with standard QSFP28 and QSFP+ optical transceivers.
What operating system runs on the QFX5130-32CD?
It runs Junos OS Evolved, providing a modernized Linux foundation with containerized routing applications.
Buying or selling QFX5130-32CD?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Juniper QFX5130-32CD Product Overview, checked 2026-10-27
- Juniper QFX5130-32CD Datasheet, checked 2026-10-27