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Product Overview
The Cisco Nexus™ 7000 Series Switches comprise a modular data center-class product line designed for highly scalable 10 Gigabit Ethernet networks with a fabric architecture that scales beyond 15 terabits per second (Tbps). Designed to meet the requirements of the most mission-critical data centers, it delivers continuous system operation and virtualized, pervasive services. The Cisco Nexus 7000 Series is based on a proven operating system, with enhanced features to deliver real-time system upgrades with exceptional manageability and serviceability. Its innovative design is purpose built to support end-to-end data center connectivity, consolidating IP, storage, and interprocess communication (IPC) networks onto a single Ethernet fabric.
The Cisco Nexus 7000 Series chassis (Figures 1 and 2) incorporate significant enhancements in design, power, airflow, cooling, and cabling. The 10-slot chassis has front-to-back airflow, making it a good solution in hot aisle and cold aisle deployments. The 18-slot chassis uses side-to-side airflow to deliver high density in a compact form factor. The power supplies, fan trays, and fabrics can be replaced from the back of the chassis without any obstruction from the I/O cables, thereby enabling operational efficiency. In addition, the Cisco Nexus 7000 Series has many power-saving enhancements such as temperature sensors, variable-speed fans, and high-efficiency power supplies that reduce the total cost of ownership (TCO) for the customers.
Figure 1. Cisco Nexus 7000 Series 10-Slot Chassis
Figure 2. Cisco Nexus 7000 Series 18-Slot Chassis
Physical Specifications
The Cisco Nexus 7000 Series 10-slot chassis has two supervisor slots, eight I/O module slots, a cable management door, and an optional air filter on the front of the chassis. On the back, it has five fabric slots, three power supply bays, two system fan trays, and two fabric fan trays.
The Cisco Nexus 7000 18-slot chassis has two supervisor module slots, 16 I/O module slots, dual-side integrated cable management, and a dual-hinged protective front door allowing unobstructed access to the cables and modules. On the back are five fabric module slots, four supply bays, and two system fan trays. Table 1 summarizes the physical features of the chassis.
Table 1. Physical Specifications
Power
The Cisco Nexus 7000 Series 10-slot chassis has three power supply bays, and the Cisco Nexus 7000 Series 18-slot chassis has four power supply bays, that can hold either 6.0-kW or 7.5-kW AC power supplies.
Power supplies with 6000 watts (W) and 7500W are available for the Cisco Nexus 7000 Series. Each 6000W power supply has two universal (100-240 volt [V]) inputs that can be connected to two AC sources using AC power cords with C19 connectors. The 7500W power supply has two input power cords that are hard wired directly to the power supply. Two versions are available: one for International markets, with an IEC 60309 AC plug; and one for U.S. markets, with a NEMA L6-30 AC plug.
Table 2 shows the power output provided by one Cisco Nexus 7000 6.0-kW AC power supply module for combinations of input voltage and the number of connected inputs.
Table 2. Power Supply Output
|
Power Supply Input |
Output |
|
|
Single input |
220 volts (V) |
3000W |
|
110V |
1200W |
|
|
Dual input |
220V |
6000W |
|
110V |
2400W |
|
|
Dual input |
110 and 220V |
4200W |
Table 3 shows the output power provided by one Cisco Nexus 7000 7.5-kW AC power supply module.
Table 3. Available Output Based on Input Power
The power supplies are hot swappable, enabling continuous system operation. They also incorporate advanced features such as internal fault monitoring, temperature sensing, real-time power draw statistics, and variable-speed fans.
Cisco Nexus 7000 power supplies are more than 90 percent efficient, so less power is wasted as heat and more power is available for the system to use than with typical power supplies. The Cisco Nexus 7000 Series systems can operate in four user-configurable power redundancy modes as shown in Table 4.
Table 4. Power Redundancy Modes
The platform software requires a minimum of 2400W of power to activate the 10-slot system and 2193W for the 18-slot system. If the power available from the power supplies is more than the minimum, the additional power is used to activate the I/O modules. If there is not enough power to activate the line cards, the line cards are kept in a power-denied state. After more power is provisioned, the user has to power-on the line cards manually to activate them.
Under typical operating conditions, the system consumes significantly less power than the maximum values. The platform software uses the maximum values to reserve sufficient power for the modules. The typical power rating is the value that is commonly seen in a controlled environment.
Table 5 shows the maximum and typical power ratings for the system and modules.
Table 5. Maximum and Typical Power Requirements
Climatic Environment
Table 6 summarizes the climatic environment for the Cisco Nexus 7000 Series 10-slot and 18-slot chassis.
Table 6. Climatic Environment
Airflow and Cooling
The 10-slot chassis cooling system consists of two system fan trays that deliver cooling for the I/O and supervisor modules and two fabric fan trays that cool the fabric modules. Each system fan tray is composed of multiple independent fans. All fan trays are removable from the rear of the chassis, allowing continuous system operation during maintenance. Table 7 summarizes the airflow and cooling features of the Cisco Nexus 7000 Series 10-slot chassis.
Table 7. Cisco Nexus 7000 Series 10-Slot Chassis Airflow and Cooling Features
The 18-slot chassis cooling system consists of two identical system fan modules that deliver cooling for the I/O and supervisor modules as well as for the fabric modules. Each system fan tray cools one half of the chassis. The top fan tray cools slots 1 to 9 and the fabric modules. The bottom fan tray cools slots 10 to 18. The fan modules are interchangeable. Each fan module is composed of multiple independent fans. Both fan trays are removable from the rear of the chassis, allowing continuous system operation during maintenance. Each fan module incorporates fan redundancy and fan controller redundancy that delivers resilience to either a fan or controller failure. Table 8 summarizes the airflow and cooling features of the Cisco Nexus 7000 Series 18-slot chassis.
Table 8. Cisco Nexus 7000 18-Slot Chassis Airflow and Cooling Features
Acoustics
The fan speed detection and control mechanism reduces noise and maintains reliability while maintaining the system temperature within operating parameters.
The sound power of the Cisco Nexus 7000 Series 10-slot chassis without an air filter is 74.3 dBA measured, or 77.3 dBA declared, and within the NEBS requirement (GR-63-Core, R4-96: Declared sound power level for equipment to be located in attended telecommunication room is 78 dBA). The sound pressure levels are 67.2 dBA without a filter and 70.2 dBA with a filter.
The sound power of the Cisco Nexus 7000 Series 18-slot chassis is 74.2 dBA measured, or 77.2dBA declared, and within the NEBS requirement (GR-63-Core, R4-96: Declared sound power level for equipment to be located in attended telecommunication room is 78 dBA). The sound pressure level is 65.0 dBA.
As required by NEBS, 3 dBA is added to the measured sound power levels to approximate statistical upper-limit values.
Cabling and Cabinet
The cable management system for the Cisco Nexus 7000 Series 10-slot chassis is located on the front of the chassis above the modules. In the largest configuration, it is capable of handling 384 CAT 6A copper cables plus 8 management port cables. All cables can be groomed either to one side of the chassis or to the left and right. A top-hinged door covers the cable management system. The cable management system can be removed to enable alternative ways of managing the cables.
The Cisco Nexus 7000 Series 10-slot chassis should be installed in either a standard four-post rack or a four-post cabinet. Panduit and Chatsworth Products (CPI) offer cabinets verified by Cisco that fit up to two Cisco Nexus 7000 Series 10-slot chassis in a 45RU height.
The cable management system for the Cisco Nexus 7000 18-slot chassis is located on both sides of the chassis aligned with the module slots. The cable management is designed for high-density Cat6A cabling groomed to either side or both sides.
The Cisco Nexus 7000 Series 18-slot chassis should be installed in either a four-post rack or a four-post cabinet. Sufficient space must be provided for cabling and for air flow on both sides. Panduit offer a four-post cabinet verified by Cisco to meet the system cabling and airflow requirements that support the installation of external ducts to deflect air into the inlets and return the warm air to the hot aisle in a hot-aisle, cold-aisle design. Use of the ducting is recommended for environments where operation in a cold-aisle, hot-aisle environment is required.
Regulatory Compliance
The Cisco Nexus 7000 Series 10-slot and 18-slot chassis are designed to meet regulator emissions and immunity requirements when tested with existing and future cards and power supplies as summarized in Table 9.
Table 9. Emissions and Immunity Specifications
The Cisco Nexus 7000 Series are designed to meet GR-1089 issue 4 and service providers' acoustic specifications. The sound level is within the NEBS criteria when operated without a filter (10-slot chassis only). Table 10 summarizes NEBS compliance.
Table 10. NEBS Specification
The Cisco Nexus 7000 Series are designed to meet regulator safety requirements when tested with existing and future cards and power supplies, as summarized in Table 11.
Table 11. Safety Specification
Service and Support
Cisco offers a wide range of services to help accelerate your success deploying and optimizing Cisco Nexus 7000 Series Switches in your data center. Our innovative services are delivered through a unique combination of people, processes, tools, and partners, and are focused on helping you increase operational efficiency and improve your data center network. Cisco® Advanced Services use an architecture-led approach to help you align your data center infrastructure to your business goals and provide long-term value. Cisco SMARTnet® Service helps you resolve mission critical problems with direct access anytime to Cisco network experts and award-winning resources. With this service, you can take advantage of the Smart Call Home service capability that offers proactive diagnostics, and real-time alerts on your Cisco Nexus 7000 switches. Spanning the entire network lifecycle, Cisco Services help maximize investment protection, optimize network operations, provide migration support, and strengthen your IT expertise. For more information about Cisco Data Center Services, visit: http://www.cisco.com/go/dcservices.
For More Information
For more information about the Cisco Nexus 7000 Series Switches, visit the product homepage at: http://www.cisco.com/go/nexus or contact your local account representative.