Cisco Systems STACKT150CM manual Intelligent Load Shedding, RPS Mode

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configured, but it would not offline any power supply from the system. This action needs to be performed by an administrator of the power stack.

The following scenario is similar to the power-sharing mode in figure 9. The Cisco StackPower technology aggregates three power supplies (1100W + 1100W + 1100W + 0W = 3300W). The load requirement is 500W per switch (500W + 500W + 500W + 500W = 2000).

Figure 11. Redundant power

Power budget is 3300W

Reserved power 1100W (equal to the size of the largest power supply in the stack)

Allocated power is 2000W

Available unallocated power is 200W

Should power requirements increase in any of the switches of the power stack, the Cisco StackPower feature can redirect power from the unallocated power pool to any port in any switch in the stack; power is drawn from the unallocated pool (200W) until it is completely depleted. Once the power budget is depleted, all power requests will be denied.

If a power supply failure occurs, regardless of which size power supply, the entire amount of reserved power is now available to the power budget. This is 1+N vs. traditional redundant power systems 1:N with a dedicated external power system.

Advantage of this feature is that redundant power is already available online without any switching required which reduces the chance for failures during power switching from internal power supply to the external redundant system.

RPS Mode

RPS mode is supported only with the XPS. This is the traditional RPS-style support, where up to nine switches are connected to the XPS but only two can be actively backed up by the XPS at any one time. This is one-to-one backup: one power supply to one switch. This mode is not to be confused with redundant mode, in which an amount of power is reserved from the overall budget. RPS mode is the default and only mode for Cisco Catalyst 3560-X Series Switches.

Intelligent Load Shedding

Cisco StackPower feature enables intelligently managing not only a stack’s power resources but also power failures.

Load shedding is the process of shutting down devices in case of power supply, cable, or system failures. For power stacks in power-sharing mode, there are two types of load-shedding: immediate and graceful.

© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.

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Contents Introduction Benefits of Cisco StackPowerTechnology Overview Cisco StackPower One Power Pool, One Load StackPower operationZero-Footprint RPS Adding a new switch to a power stackCisco StackPower and XPS Cables Page Deficit power = -109W Use Case for the Cisco StackPower FeatureShow stack-power Displaying Cisco StackPower InformationShow env power all Intelligent Power ManagementEXpandable Power System XPS Cisco StackPower TopologyPower-Sharing Mode Non-strict or loose Modes of OperationPower Share Mode Redundant Mode Power Share Strict ModeIntelligent Load Shedding RPS ModePriority Scheme Balanced power budget Available power Allocated powerRecommendations Best PracticesUnbalanced power stack For More Information

STACKT150CM specifications

The Cisco Systems STACKT150CM is an advanced technology solution designed to meet the diverse networking needs of modern businesses. This system, part of Cisco's extensive product line, highlights the company's commitment to delivering reliable and high-performance networking equipment.

One of the main features of the STACKT150CM is its flexibility in deployment. The unit can be integrated into a variety of network architectures, supporting both enterprise and small business environments. Its modular design allows for efficient scalability, enabling organizations to expand their network capacity as their needs grow. This adaptability makes the device suitable for both existing networks and new setups.

In terms of performance, the STACKT150CM is equipped with high-speed switching capabilities. It operates at impressive speeds, ensuring minimal latency and reinforced reliability in data transmission. This is essential for businesses that rely on real-time data processing and communication. The device supports various protocols, enhancing its compatibility with a wide array of devices and applications within an organization’s infrastructure.

Security features are a significant focus in the design of the STACKT150CM. It incorporates advanced security measures to protect against unauthorized access and cyber threats. This includes built-in firewall capabilities and support for network segmentation, which helps isolate critical data and applications from potential vulnerabilities. With the increasing prevalence of cyberattacks, these features are essential for safeguarding sensitive information.

The STACKT150CM also leverages Cisco's innovative software-defined networking technologies, which provide enhanced control and automation capabilities. Administrators can manage the network more efficiently, allowing for quicker adjustments and responses to changing network demands. This is critical in today’s fast-paced business environment, where operational flexibility and responsiveness are paramount.

Additionally, the device boasts robust energy efficiency features. Its design minimizes power consumption without compromising performance, aligning with the growing emphasis on sustainability in technology. This not only reduces operational costs but also positions organizations as socially responsible entities.

In conclusion, the Cisco Systems STACKT150CM represents a powerful offering in network solutions, combining flexibility, security, performance, and efficiency. It is an ideal choice for businesses looking to enhance their network infrastructure while preparing for future growth and technological advancements.
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