WS-C3750G-24PS-S Cisco 24 Ports Manageable Layer 3 Switch

Cisco WS-C3750G-24PS-S Ethernet Switch Overview

The Cisco WS-C3750G-24PS-S is a high-performance 24-port Gigabit Ethernet switch, designed for enterprise networks requiring reliability, scalability, and advanced networking features. Ideal for enhancing network efficiency, this Catalyst 3750 series switch ensures seamless connectivity and robust performance.

Key Product Details

• Manufacturer: Cisco
• Model Number: WS-C3750G-24PS-S
• Product Type: Network Switch
• Port Configuration: 24 Ethernet Ports
• Category: 24-Port Gigabit Switch

Technical Specifications

Network Ports & Connectivity

• Total of 24 Gigabit Ethernet ports for high-speed network connections
• Expansion Options: 4 SFP (Small Form-Factor Pluggable) slots for uplinks and modular expansion
• Supports 10Base-T, 100Base-TX, and 1000Base-T network standards
• Compatible with twisted pair cabling and Cat 5 standards

Performance & Technology

• Optimized for Gigabit Ethernet technology
• Supports reliable network traffic management for enterprise environments
• Provides enhanced media support for fast and stable data transfer

Power & Reliability

• Dual voltage support: 110V AC or 220V AC
• Equipped with a redundant power supply for uninterrupted operation
• Powered via a robust Power Supply Unit (PSU)

Memory & Storage

• Standard Memory: 128 MB DRAM for smooth performance
• Flash Memory: 32 MB for firmware and configuration storage

Expansion & Flexibility

• 4 SFP slots allow scalable uplinks and network growth
• Flexible deployment in diverse network environments
• Supports modular upgrades for future-proof networking

Cisco WS-C3750G-24PS-S Catalyst 3750 24 Ports Switch

The Cisco WS-C3750G-24PS-S 24 Catalyst 3750 Ports Ethernet Switch represents a robust and reliable solution for enterprise networking environments. Engineered with advanced features, it provides high-performance, scalable connectivity, and power over Ethernet (PoE) support for critical network devices. The 24-port configuration ensures seamless integration into mid-sized network infrastructures, while the Catalyst 3750 series architecture enables flexible deployment options, including stackable configurations for enhanced scalability and simplified management. Cisco’s industry-leading technology ensures that the WS-C3750G-24PS-S switch meets the evolving demands of modern networks, delivering high-speed connectivity, low latency, and extensive Layer 2 and Layer 3 capabilities.

Technical Specifications of Cisco WS-C3750G-24PS-S

Port Configuration and Connectivity

The Cisco WS-C3750G-24PS-S features 24 10/100/1000 Ethernet ports designed for Gigabit connectivity, providing high-speed access to servers, workstations, and IP-based devices. Each port supports PoE, enabling the switch to deliver power directly to compatible devices such as IP phones, wireless access points, and security cameras. This eliminates the need for separate power supplies and simplifies network infrastructure. In addition to the 24 Ethernet ports, the switch includes four SFP uplink ports, allowing for flexible fiber optic connectivity to other switches or network segments. The combination of these ports ensures both high bandwidth and extensive reach, supporting the growth and expansion of enterprise networks without compromising performance.

Performance and Switching Capacity

The WS-C3750G-24PS-S is equipped with a switching capacity of up to 32 Gbps and a forwarding rate of 12.8 Mpps, ensuring low-latency, high-throughput packet forwarding across all connected devices. This performance is crucial for organizations that handle large volumes of data, including multimedia content, cloud applications, and virtualized environments. The switch supports full-duplex operation on all ports, which doubles the effective bandwidth and reduces collisions within the network. Additionally, Cisco’s hardware-based architecture optimizes packet processing and ensures predictable network performance under high load conditions.

Power Over Ethernet (PoE) Capabilities

The PoE support on the Cisco WS-C3750G-24PS-S provides up to 15.4 watts per port, adhering to the IEEE 802.3af standard. This capability allows network administrators to deploy IP phones, wireless access points, and other PoE-enabled devices without additional power infrastructure. The intelligent PoE management features ensure efficient power allocation and monitoring, preventing overload conditions while maintaining device uptime. By centralizing power delivery through the switch, organizations can simplify network cabling, reduce installation costs, and enhance overall network reliability.

Stacking and Scalability Features

Cisco StackWise Technology

A key feature of the WS-C3750G-24PS-S is its support for Cisco StackWise technology. This innovation allows multiple Catalyst 3750 switches to be interconnected, forming a single logical unit. Stacking up to nine switches enables seamless management as a single entity, reducing administrative overhead and improving network reliability. StackWise also provides high-speed inter-switch communication, with a stacking bandwidth of 32 Gbps, ensuring rapid failover and redundancy in the event of a switch failure. This feature is particularly valuable in enterprise networks where uptime and continuous service are critical.

Network Expansion and Flexibility

The stackable nature of the Cisco 3750G series provides organizations with flexible expansion options. As network demands grow, additional switches can be added to the stack without disrupting existing operations. This modularity allows IT teams to scale networks incrementally, aligning investments with business needs. StackWise ensures that all stacked switches share a single IP address for management, simplifying configuration, monitoring, and troubleshooting. Furthermore, the unified management approach reduces configuration errors and streamlines deployment across large-scale networks.

Advanced Layer 2 and Layer 3 Features

Layer 2 Switching Capabilities

The WS-C3750G-24PS-S delivers comprehensive Layer 2 functionality, including VLAN support, spanning-tree protocols, and link aggregation. VLAN capabilities allow network segmentation, enhancing security and optimizing traffic flow within the enterprise. Spanning Tree Protocol (STP) ensures loop-free topologies, while Rapid Spanning Tree Protocol (RSTP) reduces convergence times in dynamic network environments. Link aggregation enables multiple physical links to operate as a single logical channel, increasing throughput and providing redundancy for mission-critical applications. These Layer 2 features collectively enhance network efficiency, resilience, and manageability.

Layer 3 Routing Capabilities

Beyond traditional Layer 2 switching, the WS-C3750G-24PS-S offers Layer 3 routing features, enabling inter-VLAN routing and support for dynamic routing protocols such as OSPF, EIGRP, and RIP. This advanced routing functionality allows enterprises to design more sophisticated network topologies, improving traffic management and reducing bottlenecks. With hardware-based routing acceleration, the switch ensures minimal latency and high-speed packet forwarding between subnets. The integration of Layer 3 features within a stackable switch eliminates the need for separate routers, reducing network complexity and cost.

Quality of Service (QoS) and Traffic Management

The Cisco WS-C3750G-24PS-S includes robust Quality of Service features to prioritize critical traffic such as voice, video, and real-time applications. QoS policies ensure that high-priority traffic receives the necessary bandwidth and low latency, even during periods of network congestion. Traffic classification, shaping, and policing capabilities enable granular control over data flows, supporting both enterprise and service provider network environments. Enhanced QoS contributes to an optimal user experience, particularly for VoIP communications, video conferencing, and mission-critical business applications.

Security and Network Protection

Security is a fundamental aspect of the Cisco 3750G switch family. The WS-C3750G-24PS-S supports multiple security mechanisms, including IEEE 802.1X authentication, access control lists (ACLs), and dynamic ARP inspection. These features protect the network from unauthorized access, spoofing attacks, and malicious traffic. Port security allows administrators to define the number of allowed devices per port and enforce MAC address restrictions, reducing the risk of unauthorized connections. Additionally, features like DHCP snooping and IP source guard further enhance network integrity and prevent common network-based attacks.

Use Cases and Deployment Scenarios

Enterprise and Corporate Networks

The Cisco WS-C3750G-24PS-S is ideal for medium to large enterprise networks that require reliable connectivity, advanced Layer 2 and Layer 3 features, and PoE capabilities. It is commonly deployed in office floors, data centers, and server rooms where multiple devices need to be connected and powered through a single switch. The stackable architecture ensures that as the organization grows, additional switches can be added seamlessly to expand network capacity without disrupting existing services. Its robust security and QoS features make it suitable for environments that handle sensitive data and real-time applications.

Campus and Educational Institutions

In campus networks, the WS-C3750G-24PS-S provides reliable connectivity for classrooms, laboratories, and administrative offices. Its PoE support is particularly useful for powering IP telephony, wireless access points, and video surveillance systems throughout the campus. StackWise technology enables centralized management of multiple switches across buildings, reducing operational complexity and ensuring consistent network performance. The combination of high-speed connectivity, scalability, and security features makes the switch a preferred choice for educational institutions seeking to support digital learning environments and networked campus applications.

Small and Medium Business Deployments

For small and medium businesses, the Cisco Catalyst 3750G series offers an ideal balance of performance, scalability, and cost-effectiveness. The 24-port model provides sufficient connectivity for typical office environments, while PoE eliminates the need for additional power supplies. Layer 3 routing capabilities enable efficient traffic segmentation and network optimization, supporting business-critical applications such as VoIP, video conferencing, and cloud services. The ease of management, combined with robust security features, ensures that SMBs can maintain a reliable and secure network without requiring extensive IT resources.

Data Center Access Layer

The WS-C3750G-24PS-S is frequently used as an access layer switch in data center environments. Its high-density Gigabit ports connect servers, storage devices, and virtualization hosts, while uplink ports provide aggregation to core switches or distribution layers. PoE capabilities support monitoring devices and IP cameras within the data center, streamlining infrastructure and reducing cabling complexity. The switch’s stacking and redundancy features ensure continuous operation, meeting the demanding uptime requirements of modern data center operations.