S5821-02

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S5821-02 48-Port 10GbE L3 Data Center Switch – Technical Specifications

Parameter Category	Specification Details
Model Number	S5821-02 (e.g., analogous to H3C S5821-48XS)
Switch Type	Fully Managed Layer 3 Data Center Top-of-Rack (ToR) Switch
Hardware Ports	48 x 10G SFP+ ports 4 x 40G QSFP+ uplink ports (The “-02” often denotes the 48-port configuration within the S5821 series)
Port Breakout	Uplink ports support breakout functionality: • A 40G QSFP+ port can break out into 4x 10G SFP+ ports. This can effectively turn the switch into a 64-port 10G switch.
Switching Capacity	~1.76 Tbps (Terabits per second) (non-blocking) Calculated: (48x10G + 4x40G) x 2 (full duplex) = (480 + 160) x 2 = 1.28 Tbps. Actual ASIC capacity is often higher.
Forwarding Rate	~1080 Mpps (Million packets per second)
MAC Address Table	256K entries
Packet Buffer Memory	32 MB – 48 MB (Deep buffers for data center traffic)
Jumbo Frame Support	12KB
Layer 2 Features	• STP/RSTP/MSTP • 802.1Q VLAN (4K VLAN groups) • Port Mirroring (Many-to-1) • Link Aggregation (LACP, 802.3ad) • IGMP Snooping (v1/v2/v3) • ERPS (G.8032) Ethernet Ring Protection
Layer 3 Features	Static Routing: IPv4/IPv6 Dynamic Routing: • OSPFv2/v3 • BGP • IS-IS • RIP/RIPng Multicast Routing: • PIM-SM • PIM-DM • IGMP v3 • MLD • ECMP (Equal-Cost Multi-Pathing) • VRF Lite • Policy-Based Routing (PBR)
Data Center Features	• VXLAN Gateway functionality (hardware-based) • Data Center Bridging (DCB): PFC, ETS • RDMA over Converged Ethernet (RoCE) support
Quality of Service (QoS)	• 8 priority queues per port • Advanced classification based on: 802.1p, DSCP, IP/MAC/Port • SP/WRR/SP+WRR queuing scheduling • Bandwidth policing and shaping
Security Features	• Port Security (MAC address binding & learning limit) • 802.1X Port-Based/MAC-Based Authentication • ACL (Access Control List) – L2/L3/L4 for IPv4/IPv6 • DoS (Denial of Service) attack protection • DHCP Snooping • IP-MAC-Port Binding (IMPB) • RADIUS/TACACS+ Authentication
Management & Automation	CLI: Console port (RJ45), Telnet, SSH Web GUI: HTTP/HTTPS (SSL) Network Management: SNMP (v1/v2c/v3), sFLOW, NetFlow Automation: NETCONF/YANG, Python scripting
Hardware Details	Power Supply: Dual, hot-swappable power supplies (1+1 redundancy), AC/DC. Power Consumption: 180W – 280W (depends on SFP+ module usage). Cooling: Redundant, hot-swappable fans with smart speed control. Dimensions (W x D x H): 440 x 460 x 44 mm (19-inch standard rack-mountable, 1U height).
Operating Temperature	0°C to 40°C (32°F to 104°F)
Operating Humidity	10% to 90% non-condensing
Certifications	CE, FCC, RoHS