S5148F-ON Dell 48x25GbE 6x100GbE B2F QSFP28 Network Switch

Dell PowerSwitch RA 48x 25Gb SFP28 6x 100Gb QSFP28 L3 Switch OS10 Part #: S5148F-ON,210-ANCL

• Brand: Dell
• Part #:S5148F-ON,210-ANCL
• Specs:-
• ::Type: Dell Layer 3 (L3) 1U Rack Mount switch
• ::CPU: Intel Rangeley C2538 (4-core, 2.4GHz)
• ::Memory: 16GB DDR3 RAM.
• ::Storage: 32GB SSD (internal).
• ::Packet Buffer: 16MB dynamic shared buffer.
• ::Latency: Sub-800ns (nanoseconds).
• Port Configuration
• ::Primary Ports: 48 x 25GbE SFP28 ports (Supports 1/10/25GbE).
• ::Uplink/Stacking Ports: 6 x 100GbE QSFP28 ports (Supports 10/25/40/50/100GbE via breakout cables).
• Management Ports:
• ::1 x RJ45 console/management port.
• ::1 x Micro-USB Type-B console port.
• ::1 x 10/100/1000 Base-T Ethernet management port.
• ::1 x USB Type-A port for external storage.
• Port Density
• ::Downlinks: 48 x 25GbE SFP28 ports (also supports 1GbE and 10GbE).
• ::Uplinks: 6 x 100GbE QSFP28 ports (can be used for 40GbE or broken out into 4x10G or 4x25G).
• ::Total Switching Capacity: 3.6 Tbps (Full-duplex).
• ::Forwarding Rate: 2.624 Bpps (Billion packets per second).
• ::Packet Buffer Memory: 16MB.
• Table Sizes:
• ::MAC Addresses: Up to 512K
• ::IPv4 Routes: Up to 128K
• ::IPv6 Routes: Up to 64K
• ::ARP Table: Up to 256K
• Power & Cooling
• ::Power Supplies: Dual redundant, hot-swappable 750W AC (or DC) PSUs.
• Power Consumption:
• ::Typical: ~421 Watts
• ::Maximum: ~516 Watts
• ::Fans: 4 x hot-swappable fan modules
• ::Airflow Options: * Normal: I/O Panel to PSU (Front-to-Back)
• ::Reverse: PSU to I/O Panel (Back-to-Front)
• Software Support
• ::Default OS: Dell SmartFabric OS10
• ::Open Networking: Supports ONIE (Open Network Install Environment), allowing for the installation of alternative operating systems such as Enterprise SONiC or Cumulus Linux (though check current HCL for specific version compatibility)
• Use cases
• ::25GbE Server Connectivity: Moving beyond 10GbE to handle modern NVMe storage and high-speed compute.
• ::Hyper-Converged Infrastructure (HCI): Ideal for VSAN or Nutanix deployments.
• ::Leaf-Spine Fabrics: Acts as a "Leaf" switch in a high-speed spine-leaf architecture.
• Condition: Demo unit
• Warranty: 2 (two) year Tekmart Africa warranty
•  

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**Eligible for immediate collection / shipping  upon order confirmation*

The Dell EMC Networking S5148F-ON is a high-performance, 1U "Top-of-Rack" (ToR) switch optimized for 25GbE environments. It’s a popular choice for high-density computing and software-defined storage because of its low latency and high throughput.

The "ON" in the name stands for Open Networking, meaning the hardware is decoupled from the software, allowing you to run Dell’s OS10 or third-party operating systems.

These switches are high-performance, multi-function, 10/25/40/50/100 GbE ToR switch purpose-built for applications in high-performance data center, cloud and computing environments.

They incorporate multiple architectural features that optimize data center network flexibility, efficiency, and availability, including IO panel to PSU airflow or PSU to IO panel airflow for hot/cold aisle environments, and redundant, hot-swappable power supplies and fans.

Key applications

• :: Organizations looking to enter the software-defined data center era with a choice of networking technologies designed to deliver the flexibility they need
• :: Use cases that require customization to any packet processing steps or supporting new protocols
• :: Native high-density 25 GbE ToR server access in highperformance data center environments
• :: 25 GbE backward compatible to 10G and 1G for future proofing and data center server migration to faster uplink speeds.
• :: Capability to support mixed 25G and 10G servers on front panel ports without any limitations
• :: iSCSI storage deployment including DCB converged lossless transactions
• :: Suitable as a ToR or Leaf switch in 100G Active Fabric implementations
• :: As a high speed VXLAN L2/L3 gateway that connects the hypervisor-based overlay networks with non-virtualized Infrastructure
• :: Emerging applications requiring hardware support for new protocols
•  

Some refresher notes:-

In Dell Networking switches (OS9 and OS10), like in these above, RA stands for Router Advertisement, specifically within the context of IPv6 Router Advertisement (RA) Guard. 

• ::Extended definition: RA Guard is a security feature used to protect an IPv6 network segment from malicious or misconfigured devices that send unauthorized Router Advertisement messages.
• ::Purpose: In IPv6, routers send RA messages to inform hosts about how to configure their IP addresses and which router to use as a default gateway. If a rogue device sends fake RA messages, it can hijack network traffic.