Chapter 2 Switch Installation

Planning a Switch Stack (Catalyst 3750-E Switches)

Figure 2-3and Figure 2-4are examples of recommended configurations when the switches are rack- or wall-mounted side-by-side. Use the 1-meter and the 3-meter StackWise cables to connect the switches. These configuration provide redundant connections.

Figure 2-3 Stacking up to Eight Switches in a Side-by-Side Mounting Configuration

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Figure 2-4 Stacking Nine Switches in a Side-by-Side Mounting Configuration

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Stack Bandwidth and Partitioning Examples

This section provides examples of stack bandwidth and possible stack partitioning.

Figure 2-5shows an example of a stack of Catalyst 3750-E switches that provides full bandwidth and redundant StackWise cable connections.

Figure 2-5 Example of a Stack with Full Bandwidth Connections

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Figure 2-6shows an example of a stack of Catalyst 3750-E switches with incomplete StackWise cabling connections. This stack provides only half bandwidth and does not have redundant connections.

Figure 2-6 Example of a Stack with Half Bandwidth Connections

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Figure 2-7and Figure 2-8show examples of stacks of Catalyst 3750-E switches with failover conditions. In Figure 2-7, the StackWise cable is bad in link B; therefore, this stack provides only half bandwidth and does not have redundant connections. In Figure 2-8, link B is bad; therefore, this stack partitions into two stacks, and switch 1 and switch 3 are stack masters.

Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide

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Cisco Systems 3560-E, 3750-E Stack Bandwidth and Partitioning Examples, Example of a Stack with Full Bandwidth Connections

3750-E, 3560-E specifications

Cisco Systems RPS (Redundant Power System) 2300, along with the 3750-E and 3560-E series switches, represents a significant technological advancement in enterprise networking. These devices are designed to enhance network reliability, scalability, and efficiency, making them integral components in modern enterprise infrastructures.

The Cisco RPS 2300 is designed to provide redundant power to specified Cisco switches, ensuring continuous operation during power disruptions. This system can support up to six devices, enhancing power reliability and reducing downtime. The modularity of the RPS 2300 contributes to its flexibility, allowing enterprises to customize their power solutions to suit their networking needs. It features dual power input, which provides an additional layer of failover capability, ensuring that even in the event of a primary power failure, the backup power system can take over seamlessly.

On the other hand, the Cisco 3750-E series switches are enterprise-class devices that offer a rich feature set to support advanced network functions. These switches come with Cisco’s StackWise technology, enabling users to stack up to nine switches in a single logical unit. This increases port density and simplifies network management. The 3750-E also supports Power over Ethernet (PoE), allowing the delivery of power directly to devices like IP phones and access points through the networking cables. The switch is equipped with high-performance Layer 3 routing capabilities, providing enhanced IP routing options for enterprise networks.

The Cisco 3560-E series switches share many of the advanced features found in the 3750-E models but focus more on providing comprehensive Layer 2 and Layer 3 capabilities in a compact design. The 3560-E series supports Cisco’s advanced security features, such as dynamic VLAN assignment and security group access control lists (ACLs). Additionally, these switches support IPv6, preparing enterprise networks for future growth and addressing requirements.

Both the 3750-E and 3560-E are equipped with energy-efficient technologies, including intelligent power management and support for Energy Efficient Ethernet (EEE), helping organizations reduce their environmental footprint and operating costs. The integration of Cisco’s robust IOS software ensures that these devices are equipped with the latest features, ensuring strong performance, security, and scalability.

In summary, Cisco's RPS 2300, 3750-E, and 3560-E series exemplify the company's commitment to delivering cutting-edge networking solutions that meet the demands of modern enterprises, focusing on reliability, advanced features, and energy efficiency.