Lenovo ThinkSystem NE1032T RackSwitch

Name: Lenovo ThinkSystem NE1032T RackSwitch
Brand: Lenovo

CurrentNetwork1U rack

The Lenovo ThinkSystem NE1032T RackSwitch is a 1U 10GBASE-T top-of-rack Ethernet switch engineered for enterprise data centers requiring copper 10GbE server connectivity. Offering 24 copper 10GBASE-T ports and 8 40GbE QSFP+ uplinks running Lenovo CNOS, it delivers cost-effective 10GbE network access over standard Cat6a structured cabling.

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Specifications

Brand	Lenovo
Family	ThinkSystem NE
Form factor	1U rack
Released	Jul 2017
Port configuration	24x 10GBASE-T (RJ-45) ports and 8x 40GbE QSFP+ uplink ports (breakout to 4x 10GbE supported)
Switching capacity	1.12 Tbps switching fabric with 833.3 Mpps forwarding throughput
Operating system	Lenovo Cloud Network Operating System (CNOS)
Airflow	Rear-to-front (server-cooling compliant) or front-to-rear airflow
Latency	Cut-through switching with sub-2.5 microsecond latency
Power supply	Dual redundant hot-swap AC power supplies
Management	REST API, OpenFlow, CLI, SNMP, Telemetry

Compatible parts

Transceivers

46C3447 Lenovo ThinkSystem 10Gb SFP+ SR Optical Transceiver

Works together

How the Lenovo ThinkSystem NE1032T RackSwitch connects to servers, storage and the network: 3 ways, with the parts and products on each path.

iSCSI and NVMe/TCP over Ethernet File storage (NFS and SMB)Hyperconverged cluster

iSCSI and NVMe/TCP over Ethernet

Server10/25/100GbE NICEthernet switchstorage VLAN, two switchesStorage arrayiSCSI or NVMe/TCP ports

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

Adapters for the server

4XC7A08238 ThinkSystem Broadcom 57414 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
4XC7A08248 Lenovo ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-Port PCIe Ethernet Adapter
4XC7A08295 ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
7XC7A05523 Lenovo ThinkSystem Intel X710-DA2 PCIe 10Gb 2-Port SFP+ Ethernet Adapter

Storage

Optics

46C3447 Lenovo ThinkSystem 10Gb SFP+ SR Optical Transceiver
QSFP-40G-LR4-AR Arista 40GBASE-LR4 QSFP+ Optical Transceiver Module
QSFP-40G-SR4-AR Arista 40GBASE-SR4 QSFP+ Optical Transceiver Module

iSCSI and NVMe/TCP over Ethernet: how it fits together

File storage (NFS and SMB)

Server or clientEthernet NICEthernet switchdata or storage VLANNAS or scale-outNFS, SMB, S3 ports

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

Adapters for the server

4XC7A08238 ThinkSystem Broadcom 57414 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
4XC7A08248 Lenovo ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-Port PCIe Ethernet Adapter
4XC7A08295 ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
7XC7A05523 Lenovo ThinkSystem Intel X710-DA2 PCIe 10Gb 2-Port SFP+ Ethernet Adapter

Storage

Optics

46C3447 Lenovo ThinkSystem 10Gb SFP+ SR Optical Transceiver
QSFP-40G-LR4-AR Arista 40GBASE-LR4 QSFP+ Optical Transceiver Module
QSFP-40G-SR4-AR Arista 40GBASE-SR4 QSFP+ Optical Transceiver Module

File storage (NFS and SMB): how it fits together

Hyperconverged cluster

HCI nodedrives plus 25GbETwo Ethernet switchesstorage and VM trafficMore HCI nodesthree or more

Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.

HCI nodes

Adapters for the server

4XC7A08238 ThinkSystem Broadcom 57414 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
4XC7A08248 Lenovo ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-Port PCIe Ethernet Adapter
4XC7A08295 ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
7XC7A05523 Lenovo ThinkSystem Intel X710-DA2 PCIe 10Gb 2-Port SFP+ Ethernet Adapter

Optics

46C3447 Lenovo ThinkSystem 10Gb SFP+ SR Optical Transceiver
QSFP-40G-LR4-AR Arista 40GBASE-LR4 QSFP+ Optical Transceiver Module
QSFP-40G-SR4-AR Arista 40GBASE-SR4 QSFP+ Optical Transceiver Module

Hyperconverged cluster: how it fits together

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
Lenovo ServerProven (Lenovo compatibility) lenovo.com

Check compatibility with Lenovo

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Lenovo has tested with the Lenovo ThinkSystem NE1032T RackSwitch.

Compatibility Lenovo ServerProven (options and OS compatibility)
Specifications Lenovo Press product guides
Support Lenovo Data Center Support

Equivalent models from other brands

FAQ

What cabling is recommended for the 10GBASE-T ports on NE1032T?

Category 6a (Cat6a) shielded or unshielded twisted pair cabling is recommended for distances up to 100 meters.

Can the 40GbE QSFP+ ports be used as 10GbE ports?

Yes, each 40GbE QSFP+ port supports 4x 10GbE breakout cables, providing up to 56 total 10GbE ports.

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Sources

Lenovo ThinkSystem NE1032T RackSwitch Product Guide, checked 2026-10-28