S3994-01

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2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

S3994-01 Director-Class Modular Switch Chassis – Technical Specifications

Parameter Category	Specification Details
Model Number	S3994-01 (Typically refers to the base chassis)
Switch Type	Modular Director-Class Switch / Core Router
Chassis Form Factor	8-slot to 16-slot chassis (e.g., 8-slot: 4x Line Card slots, 4x Fabric/Management slots)
Hardware Ports	Defined by Line Cards. Supports a massive mix of port types across modules: • 400G QSFP-DD/OSFP Line Cards • 100/200/800G Line Cards • 10/25/40/50/100G Line Cards • IPoDWDM/Optical Transport blades The “94” suggests support for the highest speeds (400G/800G).
Switching Capacity	Tens of Terabits per second, scalable to 100+ Tbps (non-blocking across the fabric). Capacity scales with the number of fabric cards installed.
Forwarding Rate	Billions of Packets Per Second (Bpps). Scalable based on line card and fabric card configuration.
Fabric Architecture	Centralized Crossbar Fabric. Fabric cards are separate from line cards, providing redundancy and scalability.
MAC Address Table	1 Million+ entries (scalable)
Packet Buffer Memory	Hundreds of MB to GB of shared or distributed buffer memory per slot to handle internet-core-level traffic bursts.
Layer 3 Features	Full Internet Core Router Capabilities: • BGP (Full Internet table support + IPv6) • OSPFv2/v3, IS-IS • MPLS (LDP, RSVP-TE, Segment Routing) • Multicast: PIM-SM/SSM, MSDP, MVPN • EVPN/VXLAN Gateway services
Data Center & Carrier Features	• Dense 400/800G Ethernet • MPLS-SR (Segment Routing) • Advanced Telemetry (INT, In-band OAM) • Precision Timing (PTP, SyncE) • MACsec (256-bit encryption) on all ports
Quality of Service (QoS)	• Hierarchical QoS (H-QoS) with 16+ queues per port • Advanced congestion avoidance (WRED, ECN) • Per-flow policing and shaping
High Availability	Full Redundancy: • N+1 Redundant Fabric Cards • N+N Redundant Management Cards • N+1 Redundant, Hot-swappable Power Supplies & Fan Trays • Hitless Software Upgrades • Stateful Switchover (SSO)
Management & Automation	Designed for multi-vendor, multi-domain orchestration. • RESTful API • NETCONF/YANG • gRPC & gNMI for streaming telemetry • Python SDK, Ansible modules • Cloud integration (Kubernetes, OpenStack)
Hardware Details	Power Supply: Multiple, hot-swappable, 3000W+ AC/DC/HVDC power supplies. Power Consumption: 3000W – 8000W+ for a fully loaded chassis. Cooling: Redundant, hot-swappable, multi-fan trays. Dimensions (W x D x H): Large freestanding or rack-mountable chassis. Often 10U to 20U+ in height.
Operating Temperature	0°C to 40°C (32°F to 104°F)
Operating Humidity	10% to 90% non-condensing
Certifications	CE, FCC, RoHS, UL, NEBS Level 3 (for carrier environments)