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N5K-C56128P Overview
The Cisco Nexus 56128P (N5K-C56128P) is a 2RU (2 rack unit) switch that supports 2.56 Tbps of bandwidth across 48 fixed 1 Gigabit and 10 Gigabit Ethernet SFP+ ports, and four 40-Gbps QSFP+ ports. The 48 fixed SFP+ ports and 4 40Gbps QSFP+ ports support FCOE also, in addition to Ethernet. The Cisco Nexus 56128P runs the industry-leading Cisco NX-OS Software operating system, providing features and capabilities that are widely deployed.
Quick Specs
Table 1 shows the Quick Specs.
| Product Code | N5K-C56128P |
| Bandwidth | 2.56 Tbps |
| Fixed Interfaces | 48 fixed 1 Gigabit and 10 Gigabit Ethernet SFP+ ports, and four 40-Gbps QSFP+ ports |
| Form Factor | 2-rack unit |
| Expansion slots | 2 |
| Power Supplies | four 2+2 redundant, hot-swappable power supplies |
| Fan Modules | four 3+1 redundant, hot-swappable independent fans |
| Number of ports | 1152 with FEX |
| 10 GE | Up to 96 wire-rate ports |
| 40 GE | Up to 8 QSFP ports |
| Unified ports | Up to 48 ports (Ethernet; FCoE; 2/4/8-gigabit FC) |
| 10 and 40 Gbps FCoE | Yes |
| Hardware VXLAN | Yes |
| NVGRE capable | Yes |
| Latency | 1 microsecond |
| Airflow | supporting both port-side intake (red handle) and fan-side intake (blue handle) airflow options. |
| Physical (height x width x depth) | 3.5 x 17.3 x 30 in (8.8 x 43.9 x 76.2 cm) |
| Weight | 60 lb (2 expansion modules and 4 power supplies) |
Product Details
The Accessories
Table 2 shows the recommended elements for the N5K-C56128P.
| Category | Model | Description |
| N5600 SFP Transceiver and Optics | SFP-10G-SR | 10GBASE-SR SFP Module |
| SFP-H10GB-CU1-5M | 10GBASE-CU SFP+ Cable 1.5 Meter | |
| Software License Options | N56-LAN1K9-P | Limited Time Promotion for Nexus 5600 Series LAN Enterprise |
Compare to Similar Items
Table 3 shows the comparison of N5K-C56128P and N5K-C5672UP.
| Product Code | N5K-C56128P | N5K-C5672UP |
| Form factor | 2-rack unit | 1-rack unit |
| Power Supplies | four 2+2 redundant, hot-swappable power supplies | two 1+1 redundant, hot-swappable power supplies |
| Airflow | supporting both port-side intake (red handle) and fan-side intake (blue handle) airflow options. | supporting both port-side intake (red handle) and fan-side intake (blue handle) airflow options for flexible mounting |
| Number of ports | 1152 with FEX | Up to 1152 with FEX |
| 10 GE | Up to 96 wire-rate ports | 48 ports |
| 40 GE | Up to 8 QSFP ports | 6 true QSFP ports |
| Unified ports | Up to 48 ports (Ethernet; FCoE; 2/4/8-gigabit FC) | 16 ports (Ethernet; FCoE; 2/4/8-gigabit FC) |
| 10 and 40 Gbps FCoE | Yes | Yes |
| Hardware VXLAN | Yes | Yes |
| NVGRE capable | Yes | Yes |
| Latency | 1 microsecond | 1 microsecond |
