Cisco Nexus 7000 Series Switches Environment Data Sheet

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 17 terabits per second (Tbps) and that supports high-density 40 and 100 Gigabit Ethernet deployments. 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.

The Cisco Nexus 7000 Series chassis (Figures 1, 2, 3, and 4) 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 9- and 18-slot chassis use side-to-side airflow to deliver high density in a compact form factor. The 4-slot chassis has side-to-back airflow in the smallest form factor, making it a good solution in smaller operation locations. 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 operation 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 customers.

Physical Specifications

The Cisco Nexus 7000 4-Slot Switch chassis has two supervisor module slots, two I/O module slots, and purpose-built integrated cable management. The 4-slot chassis does not have fabric modules, and the backplane capacity is determined by the I/O modules. Power supplies and fan tray are accessible from the front.

The Cisco Nexus 7000 9-Slot Switch chassis has two supervisor module slots, seven I/O module slots, five fabric modules, dual-side integrated cable management, and a dual-hinged protective front door, allowing unobstructed access to the cables and modules. On the back are two power supply bays and one system fan tray.

The Cisco Nexus 7000 10-Slot Switch 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 Switch 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 power 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 4-Slot chassis has four power supply bays that can hold 3.0-kilowatt (kW) AC, 3.0-kWDC or 3.5-kilowatt HVAC/HVDC power supplies. Each 3000-watt (W) power supply has one universal (100 to 240 volt [V]) input that can be connected to one AC source using an AC power cord with a C19 connector. 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. The 3500W power supply uses an Anderson 2006G Saf-D-Grid connector capable of accepting up to 400V AC or 400V DC input.

Table 2 shows the power output provided by one Cisco Nexus 7000 3.0-kW AC Power Supply Module.

Table 2.       Power Supply Output

Table 3 shows the power output provided by one Cisco Nexus 7000 3.0-kW DC Power Supply Module.

Table 3.       Power Supply Output

Table 4 shows the power output provided by one Cisco Nexus 7000 3.5-kW HVAC/HVDC Power Supply Module.

Table 4.       Power Supply Output

The Cisco Nexus 7000 9-Slot chassis has two power supply bays, the Cisco Nexus 7000 10-Slot chassis has three power supply bays, and the Cisco Nexus 7000 18-Slot chassis has four power supply bays that can hold either 6.0 kW AC or DC power supplies or 7.5-kW AC power supplies. Each 6000W power supply has two universal (100 to 240V) 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 the U.S. market, with a NEMA L6 30 AC plug.

Table 5 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 5.       Power Supply Output

Table 6 shows the output power provided by one Cisco Nexus 7000 7.5-kW AC Power Supply Module.

Table 6.       Available Output Based on Input Power: 7.5-kW AC Power Supply Module

Table 7 shows the output power provided by one Cisco Nexus 7000 6.0-kW DC Power Supply Module.

Table 7.       Available Output Based on Input Power: 6.0-kW DC Power Supply Module

The power supplies are hot swappable, enabling continuous system operation. Mixed combinations of 6.0-kW and 7.5-kW as well AC and DC power supplies are supported. The power supplies also incorporate advanced features such as internal fault monitoring, temperature sensing, real-time power draw statistics, and variable-speed fans.

Cisco Nexus 7000 Series 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, listed in Table 8. The power redundancy modes are designed to determine the optimum power for the combination of power supplies installed, helping ensure system availability.

Table 8.       Power Redundancy Modes

The platform software requires a minimum of 860W of power to run the 4-slot system, 1557W of power to run the 9-slot system, 2400W to run the 10-slot system, and 2193W to run 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 must turn on power to 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 temperature-controlled environment.

Table 9 shows the maximum and typical power ratings for the system and modules.

Table 9.       Maximum and Typical Power Requirements

Climatic Environment

Table 10 summarizes the climatic environment for the Cisco Nexus 7000 4-, 9-, 10-, and 18-Slot chassis.

Table 10.     Climatic Environment

Airflow and Cooling

The 4-slot chassis cooling system consists of one system fan tray with built-in fan and controller redundancy to help ensure the reliability of the system and support hot swapping of fan trays. Table 11 summarizes the airflow and cooling features of the Cisco Nexus 7000 4-Slot chassis.

Table 11.     Cisco Nexus 7000 4-Slot Chassis Airflow and Cooling Features

The 9-slot chassis cooling system consists of one system fan module that delivers cooling for the I/O and supervisor modules as well as for the fabric modules. The fan module is composed of multiple independent fans. The fan tray is designed with independent zone cooling to optimize power use and cooling. Each row of fans is designed to cool a set of slots and can be turned off if the slots are not occupied. Also, each fan has an independent power bus connection and software control. The fans can be removed from the rear of the chassis, allowing continuous system operation during maintenance. Table 12 summarizes the airflow and cooling features of the Cisco Nexus 7000 9-Slot chassis.

Table 12.     Cisco Nexus 7000 9-Slot Chassis Airflow and Cooling Features

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 13 summarizes the airflow and cooling features of the Cisco Nexus 7000 10-Slot chassis.

Table 13.     Cisco Nexus 7000 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 half of the chassis: The top fan tray cools slots 1 to 9 and the fabric modules, and 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 14 summarizes the airflow and cooling features of the Cisco Nexus 7000 18-Slot chassis.

Table 14.     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 (Table 15).

Table 15.     Cisco Nexus 7000 Series Chassis Acoustics

Note:    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 9- or 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 cable management system for the Cisco Nexus 7000 10-Slot chassis is located on the front of the chassis above the modules. In the largest configuration, the chassis can support 384 Cat6A 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 support alternative ways of managing the cables.

The Cisco Nexus 7000 9- and 18-Slot chassis should be installed in either a four-post rack or a four-post cabinet that meets the depth, total equipment weight, and network cabling requirements. Sufficient space must be provided for cabling and for airflow on both sides. Multiple third-party vendor solutions are available to meet the system cabling and airflow requirements and 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 and cold-aisle design. Use of ducting is recommended for environments in which a cold-aisle and hot-aisle environment is required. Use of other four-post solutions that meet the minimum requirements is supported.

The Cisco Nexus 7000 9-Slot chassis can also be installed in a two-post rack along with a four-post rack or a four-post cabinet that meets the depth, total equipment weight, and network cabling requirements.

The Cisco Nexus 7000 10-Slot chassis should be installed in either a standard four-post rack or a four-post cabinet that meets the depth, total equipment weight, and network cabling requirements. Multiple third-party vendor cabinet solutions that meet the specifications for the 10-slot chassis are currently available.

Regulatory Compliance

The Cisco Nexus 7000 4-, 9-, 10-, 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 15.

Table 16.     Emissions and Immunity Specifications

The Cisco Nexus 7000 Series is 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 16 summarizes NEBS compliance.

Table 17.     NEBS Specifications

The Cisco Nexus 7000 Series is designed to meet regulator safety requirements when tested with existing and future cards and power supplies, as summarized in Table 17.

Table 18.     Safety Specifications

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 operating efficiency and improve your data center network. Cisco^® Advanced Services uses an architecture-led approach to help you align your data center infrastructure with your business goals and provide long-term value. Cisco SMARTnet^® Service helps you resolve mission-critical problems with direct access at any time to Cisco network experts and award-winning resources. With this service, you can take advantage of the Cisco Smart Call Home service capability that offers proactive diagnostics and real-time alerts for your Cisco Nexus 7000 Series Switches. Spanning the entire network lifecycle, Cisco Services help increase 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.

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For More Information

For more information about the Cisco Nexus 7000 Series Switches, visit the product homepage at http://www.cisco.com/go/nexus7000 or contact your local account representative.