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N7K-C7018-FAB-1
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- Nexus 7000 - 18 Slot Chassis - 46Gbps/Slot Fabric Module
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N7K-C7018-FAB-1 Overview
N7K-C7018-FAB-1 is a high-performance fabric module designed for Cisco Nexus 7000 Series chassis that interconnects high-density line cards and supervisor engines in data centers. Built to deliver rapid inter-module communication, this fabric card enables efficient, low-latency data transfers and is optimized for applications requiring robust, scalable interconnectivity in mission-critical network environments.
Engineered with a modular form factor for easy installation and maintenance, the N7K-C7018-FAB-1 seamlessly integrates into the Nexus 7000 platform. This fabric module supports industry-standard Ethernet and Cisco FabricPath protocols to help realize high availability and reliable connectivity, making it ideal for expanding data center capacity and enhancing overall network performance.
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N7K-C7018-FAB-1 Specifications
| Product Type | Network Module / Switch Fabric Card |
| Module Type | Fabric Module |
| Data Rate | 10Gbps |
| Connector Type | Proprietary |
| Supported Protocols | Ethernet, FabricPath |
| Form Factor | Modular |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco Nexus 7000 Series |
| Max Speed | 10Gbps |
| Supported Features | High Availability, Hot-swappable |
| Power Consumption | N/A |
| Interface Ports | N/A |
| Expansion Slots | N/A |
| Product Name | Cisco Nexus 7000 Fabric Module N7K-C7018-FAB-1 |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
N7K-C7018-FAB-1 Use Case
High-Density Virtualization Core Switch for Large Enterprises
In a global financial firm deploying 5,000+ VMware ESXi hosts, the N7K-C7018-FAB-1 Nexus 7000 18-Slot Chassis with 46 Gbps/slot fabric modules consolidates core switching and east-west traffic at sub-millisecond latency. This design delivers linear scalability, non-stop forwarding and up to 828 Tbps in a single chassis, enabling predictable performance, simplified operations and 50% lower power per gigabit compared to legacy blades.
Multi-Tenant Cloud Aggregation for Service Providers
A tier-1 cloud operator uses the N7K-C7018-FAB-1 Nexus 7000 chassis to aggregate traffic from 100+ virtual data centers over 10/40/100 GbE links. The 46 Gbps/slot fabric module ensures per-tenant QoS, VXLAN routing and hardware-based multi-chassis link aggregation. This delivers 99.999% uptime, granular bandwidth assurance and security segmentation, driving higher customer SLAs and operational simplicity.
Ultra-Low-Latency Fabric for High-Performance Computing Clusters
A national research laboratory builds a 2,048-node HPC cluster connected through the N7K-C7018-FAB-1 Nexus 7000 18-Slot Chassis. The 46 Gbps/slot fabric modules deliver deterministic latency and wire-speed performance for MPI workloads. This architecture accelerates simulation runtimes by 40%, scales to petascale computing and centralizes fabric management, maximizing research throughput and resource utilization.
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Product Comparison Table
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|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco Nexus 7000 Series | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Dell, HP |
| Connector Type | SFP+ | SFP+ | Proprietary | SFP+ | SFP+ |
| Data Rate | 10G | 10G | 10Gbps | 10G | 10G |
| Depth | N/A | N/A | N/A | 0.5 inches | 10.0 in |
| Expansion Slots | N/A | N/A | N/A | N/A | SFP |
| Form Factor | PCIe | PCIe | Modular | PCIe | PCIe |
| Height | N/A | N/A | N/A | 1.5 inches | 1.5 in |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | Fibre Channel / SFP+ | Ethernet | N/A | Ethernet | Ethernet, SFP+ |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Module Type | Fibre Channel | Ethernet | Fabric Module | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | 7W | N/A | 15W | 12W |
| Product Name | N77-C7706-FAB-3= | N77-C7710-FAB-3= | Cisco Nexus 7000 Fabric Module N7K-C7018-FAB-1 | N77-SUP3E High-Speed Ethernet Card | N77-C7710-FAB-3 |
| Product Type | Network Card | Network Module / Network Card | Network Module / Switch Fabric Card | Network Card | Network Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames | High Availability, Hot-swappable | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames |
| Supported Protocols | TCP/IP / Fibre Channel | TCP/IP, iSCSI | Ethernet, FabricPath | TCP/IP, iSCSI | TCP/IP, iSCSI |
| Weight | N/A | N/A | N/A | 1.2 lbs | 1.2 lbs |
| Width | N/A | N/A | N/A | 3.5 inches | 8.0 in |
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Questions & Answers
Q
What is the Cisco Nexus 7000 N7K-C7018-FAB-1 chassis?
A
The Cisco Nexus 7000 N7K-C7018-FAB-1 is an 18-slot modular data center switch chassis pre-populated with a Fabric-1 (FAB-1) module supporting up to 46 Gbps per slot.
Q
What fabric bandwidth does the FAB-1 module deliver?
A
The FAB-1 module provides a non-blocking fabric capacity of 46 Gbps per slot, for up to 828 Gbps aggregate switching bandwidth in the 18-slot chassis.
Q
Which line cards are compatible with this chassis?
A
The N7K-C7018 supports Cisco Nexus 7000 series M1, M2 and M3 line cards, including 10 Gigabit Ethernet, 40 Gigabit Ethernet, and Fibre Channel over Ethernet (FCoE) modules.
Q
Can I mix FAB-1 and FAB-2 modules in the Nexus 7000?
A
No. The 18-slot Nexus 7000 chassis supports only homogeneous FAB modules. You must install either all FAB-1 or all FAB-2 modules; mixed configurations are not supported.
Q
What power supply options are available?
A
The chassis accommodates up to six hot-swappable AC or DC power supplies for N+1 or N+N redundancy, ensuring uninterrupted operations and load balancing.
Q
What are the cooling and airflow requirements?
A
The Nexus 7000 uses front-to-rear airflow with eight redundant hot-swap fans. It requires a data center environment rated at 5 °C to 35 °C and 5%–85% relative humidity.
Q
How do I install the FAB-1 module in the chassis?
A
Power down the chassis, slide the FAB-1 module into the dedicated fabric slot, secure with captive screws, then power on. The chassis automatically recognizes and activates the module.
Q
What software is required to operate this chassis?
A
Cisco NX-OS software is preloaded. You need the appropriate feature licenses (FabricPath, OTV, etc.) to enable advanced data center functions.
Q
What is the typical use case for the Nexus 7000 with FAB-1?
A
This platform is ideal for core and aggregation layers in large data centers, supporting high-density 10/40 Gbps deployments, virtualization, and scalable campus fabrics.
Q
How scalable is the 18-slot Nexus 7000 chassis?
A
With 18 line-card slots and 46 Gbps per slot, you can scale up to 828 Gbps of fabric capacity and support thousands of 10 GbE and 40 GbE interfaces.
Q
What are the chassis dimensions and weight?
A
The chassis measures 17.5" (W) × 28.8" (D) × 10.5" (H) and weighs 110 lbs (49.9 kg) fully loaded with FAB-1 and line cards installed.
Q
Does the FAB-1 module support redundancy?
A
Yes. In an 18-slot chassis with multiple FAB-1 modules, you can configure N+1 fabric redundancy to maintain fabric connectivity in case of module failure.
Q
What management interfaces are available?
A
The chassis offers dual out-of-band 10/100/1000 Mbps Ethernet management ports, a serial console port, and an optional USB console interface.
Q
How much power does the FAB-1 module consume?
A
Each FAB-1 module consumes approximately 200 W under full load; total chassis power depends on the number of modules and line cards installed.
Q
What warranty and support options does Cisco offer?
A
Cisco provides a limited warranty, global software support (SWSS) and hardware replacement services via Cisco SMARTnet or partner programs for rapid parts replacement and 24/7 technical assistance.
