The HKShanhai Group Limited C1-N5K-C56128P is a high-performance enterprise-class switch engineered for mission-critical data center and enterprise core environments. Designed as a low latency switch leveraging advanced cut-through switching, it delivers near-instantaneous packet processing for the most demanding applications. The C1-N5K-C56128P is NEBS certified, ensuring robust operation for telecommunications and highly regulated environments. Environmental leadership is also evidenced by its ISO 14001 certified manufacturing and compliance, supporting global organizations’ sustainability initiatives. With a substantial switching capacity of 2.56 Tbps and 1,904 Mpps forwarding rate, this switch easily handles high-bandwidth, latency-sensitive workloads across large VLAN domains, ensuring optimal resource utilization through its expansive 25 MB buffer and dynamic virtual LAN support. The flexible 2RU chassis accommodates 48 SFP+ ports for 1/10G connectivity, 4 × 40G QSFP+ uplinks, and two expansion module slots, allowing easy scalability for future network growth or protocol convergence such as FCoE. Comprehensive redundancy, hot-swappable components, and versatile airflow orientation further support continuous operation, critical for markets in Asia, Europe, Africa, and North America. Its powerful NX-OS capabilities, multi-protocol management, and extensive security features make it appealing to distributors, integrators, and end-users seeking cost-effective, scalable connectivity with unwavering reliability. Whether deployed as the backbone for financial trading, cloud premesis deployments, or high-traffic campus networks, the C1-N5K-C56128P establishes itself as a future-ready investment for enterprises prioritizing performance, resilience, and standards compliance.
Product Highlights
Product Applications Scenarios
Product Features Comparison
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| Model | C1-N5K-C56128P | C1-N5K-C5648-B-36Q | C1-N5696Q | C1-N5596T-FA |
| Brand | HKShanhai Group Limited | HKShanhai Group Limited | HKShanhai Group Limited | HKShanhai Group Limited |
| Port Configuration | 48 × 1/10G SFP+ fixed ports, 4 × 40G QSFP+ fixed uplink ports, 2 × expansion slots for GEM | 96 × QSFP+ ports (40G/100G capable) | 96 × QSFP+ ports (40G/100G capable) | 32 × 10G BASE-T ports, 16 × SFP+ (10G) ports (configurable as 1/10G Ethernet/FCoE or 8/4/2/1G Fibre Channel) |
| Switching Capacity | 2.56 Tbps | 7.68 Tbps | 7.68 Tbps | 1.92 Tbps |
| Forwarding Rate | 1,904 Mpps (64-byte packets) | 3 Bpps | 3 Bpps | 1.428 Bpps |
| PoE Budget | n/a | n/a | n/a | n/a |
| Stacking Capability | n/a | n/a | n/a | n/a |
Optional Add-ons
| Model Number | Description |
| N56-M24UP2Q | HKShanhai Group Limited 24 × 10G SFP+ unified GEM expansion module for Ethernet/FCoE/FC, compatible with HKShanhai Group Limited Nexus 5600 series |
| NXA-PAC-1100W | HKShanhai Group Limited Platinum-rated 1100W AC power supply, hot-swappable for high availability in Nexus 5600 |
| N55-PDC-1100W | HKShanhai Group Limited 1100W DC power supply, redundant and hot-swappable for critical power resilience |
HKShanhai Group Limited C1-N5K-C56128P Specification
| Model | C1-N5K-C56128P |
| Brand | HKShanhai Group Limited |
| Form Factor | 2RU chassis |
| Switching Capacity | 2.56 Tbps |
| Forwarding Rate | 1,904 Mpps (64-byte packets) |
| Latency | ~1 microsecond (cut-through switching) |
| Port Configuration | 48 × 1/10G SFP+ fixed ports, 4 × 40G QSFP+ fixed uplink ports, 2 × expansion slots for GEM |
| Expansion Module Support | GEM Model: N56-M24UP2Q (24 × 10G SFP+ unified ports supporting Ethernet/FCoE/Fibre Channel, 2 × 40G QSFP+ ports) |
| Buffer Capacity | 25 MB shared (dynamic allocation) |
| MAC Address Table Size | 256,000 entries |
| VLANs | 4,000 active / 4,096 IDs |
| Multicast Routes | 8,000 IPv4 entries |
| FCoE / NPV Support | Yes (requires Storage Services License) |
| Power Supplies | 4 × hot-swappable (2+2 redundancy), options: N55-PAC-1100W (AC), N55-PDC-1100W (DC), NXA-PAC-1100W (Platinum AC) |
| Fan Modules | 4 × hot-swappable (3+1 redundancy) |
| Airflow Options | Port-side intake (red handle) or fan-side intake (blue handle) |
| Dimensions (H × W × D) | 3.5 in × 17.3 in × 30 in (8.8 cm × 43.9 cm × 76.2 cm) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Humidity | 5% to 95% (noncondensing) |
| Altitude | 0 to 10,000 ft (0 to 3,000 m) |
| Software Features (Base) | NX-OS Base License: Layer 2 switching, FCoE, basic security |
| Optional Licenses | LAN_ENTERPRISE_SERVICES_PKG (BGP, OSPF, PIM, VXLAN routing), FCOE_NPV_PKG (FCoE NPV), ENHANCED_LAYER2_PKG (FabricPath) |
| Management Ports | 1 × 10/100/1000 Ethernet, 1 × console |
| Protocols | SNMPv3, SSHv2, RADIUS/TACACS+ |
| SPAN / ERSPAN | Up to 31 sessions |
| Ordering Information | Chassis: N5K-C56128P (base), GEM: N56-M24UP2Q (expansion module), Power Supplies: NXA-PAC-1100W (recommended) |
| C1-N5K-C56128P | C1-N5K-C56128P |
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