S3883

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S3883 High-Density 400GbE Data Center Spine Switch – Technical Specifications

Parameter Category	Specification Details
Model Number	S3883
Switch Type	Fully Managed Layer 3 Data Center Spine / Core Fabric Switch
Hardware Ports	32 x 400G QSFP-DD ports or 64 x 200G QSFP56 ports or 128 x 100G/50G ports via breakout (This high port density is a hallmark of the “88” series in many vendors’ lineups.)
Port Breakout	Extensive breakout support is a key feature. • A 400G QSFP-DD port can break out into: – 2x 200G QSFP56 – 4x 100G QSFP28 – 8x 50G SFP56 • This allows the switch to be adapted for various spine or leaf roles.
Switching Capacity	~25.6 Tbps (Terabits per second) or higher (non-blocking) Calculated as 32 ports x 400 Gbps x 2 (full duplex) = 25.6 Tbps.
Forwarding Rate	~18,000 Mpps (Billion packets per second) or higher Based on 64-byte packets.
MAC Address Table	512K – 1M entries
Packet Buffer Memory	Extremely Deep Buffering (100 MB – 200 MB+) is standard to handle massive traffic bursts in AI/ML and cloud data centers.
Jumbo Frame Support	12KB
Layer 2/3 Features	Designed for simplicity in fabric architectures. • BGP (Border Gateway Protocol) for large-scale routing • OSPF/IS-IS for internal fabric routing • ECMP (Equal-Cost Multi-Pathing) with 32+ paths • VXLAN Gateway & EVPN control plane support • Basic VLAN, LACP, etc. (Often used minimally)
Data Center Features	• VXLAN/EVPN (Full hardware-based support for network overlays) • RDMA over Converged Ethernet (RoCE) support with explicit congestion notification (ECN) • Advanced Traffic Engineering • In-band Network Telemetry (INT) support • GPUDirect® Support for AI/ML workloads (reducing CPU overhead)
Quality of Service (QoS)	• 8-16 priority queues per port • Advanced congestion management (ECN, WRED) • Precision timing protocol (PTP) for synchronization
Security Features	• Hardware-accelerated ACLs (IPv4/IPv6) • Micro-segmentation support within the fabric • Management security (TACACS+, RADIUS, SSH, etc.)
Management & Automation	API-First Design. • RESTful API • NETCONF/YANG data models • Python SDK • Ansible, Chef, Puppet integration Traditional CLI and Web GUI are available but not the primary management method.
Hardware Details	Power Supply: Multiple, hot-swappable, high-wattage (2000W+ each) power supplies (AC/DC/HVDC). Power Consumption: 800W – 1500W+ (highly dependent on optic modules used). Cooling: Redundant, hot-swappable, variable-speed fans with advanced cooling designs. Dimensions (W x D x H): Standard 19-inch rack-mountable; typically 1U or 2U height (1U is common for this density).
Operating Temperature	5°C to 40°C (41°F to 104°F)
Operating Humidity	10% to 90% non-condensing
Certifications	CE, FCC, RoHS, UL