WS-C3550-12T Cisco Catalyst 3550 Ethernet Switch 10 Ports

Cisco WS-C3550-12T Catalyst 3550 Ethernet Switch

The Cisco WS-C3550-12T Catalyst 3550 is a robust Ethernet switch designed for small to medium-sized network deployments. It provides high-performance connectivity, flexible management options, and extensive expansion capabilities, making it ideal for enterprises requiring reliable and scalable network infrastructure.

General Information

• Manufacturer: Cisco
• Part Number: WS-C3550-12T
• Product Line: Catalyst
• Series: 3550
• Device Type: Ethernet Switch

Port

• Total Network Ports: 10
• RJ-45 Ports: 10
• Gigabit Ethernet Ports: 10
• Expansion Slots: 2 Gigabit Ethernet (GBIC)

Performance and Connectivity

• Supported Media: Twisted Pair
• Cable Standard: Category 5
• Ethernet Technology: Gigabit Ethernet
• Network Technologies: 10Base-T, 10/100/1000Base-T

Expansion Capabilities

• Total Expansion Slots: 2
• Slot Type: GBIC
• Number of GBIC Slots: 2

Management and Protocols

• Management Options: SNMP, Telnet, RMON, CWSI
• Management Interfaces: CLI-based out-of-band, embedded CMS
• Manageable: Yes

Memory and Storage

• Standard Memory: 64 MB
• Flash Memory: 16 MB

Power and Energy Requirements

• Input Voltage: 110 V AC, 220 V AC

Reliable and Secure Operation

• Enhanced uptime with proven Cisco Catalyst reliability
• Supports network security protocols to safeguard data
• Power redundancy options ensure uninterrupted service

Cisco WS-C3550-12T Catalyst 3550 Ethernet Switch

The Cisco WS-C3550-12T Catalyst 3550 series is a high-performance, fully managed Ethernet switch designed for small to medium-sized enterprise networks. This switch offers ten fast Ethernet ports with robust Layer 2 and Layer 3 features, enabling seamless data transfer, efficient network management, and comprehensive security. Built with Cisco’s advanced technology, the WS-C3550-12T ensures reliable connectivity for business-critical applications, enhancing network scalability and operational efficiency.

Technical Specifications of Cisco WS-C3550-12T

The WS-C3550-12T is engineered with superior hardware components that provide consistent performance under heavy network loads. Its ten 10/100 Mbps ports are complemented by high-speed backplane switching, supporting low-latency communication across multiple devices. The switch operates on Cisco IOS, offering a rich set of Layer 2 features including VLAN support, Spanning Tree Protocol (STP), and port aggregation. For Layer 3 capabilities, the WS-C3550-12T supports static routing, Routing Information Protocol (RIP), and Open Shortest Path First (OSPF), making it a versatile option for enterprises requiring both switching and routing functionalities.

Performance and Throughput

The Catalyst 3550 series is known for its remarkable throughput and low latency. With support for wire-speed performance, the WS-C3550-12T delivers uninterrupted data flow across all ports. Its hardware-based switching architecture ensures that simultaneous network operations do not impact performance, allowing organizations to maintain efficient communication between servers, workstations, and network devices. The switch is also optimized for quality of service (QoS), enabling prioritization of critical traffic such as voice and video communications, ensuring superior user experience and minimal network congestion.

Layer 2 Switching Features

The Layer 2 functionality of the WS-C3550-12T includes comprehensive VLAN capabilities, allowing administrators to segment networks for improved security and traffic management. The switch supports IEEE 802.1Q for VLAN tagging, enabling interoperability with other VLAN-enabled devices. Advanced STP features prevent network loops, providing a stable and resilient network environment. Port security measures ensure that unauthorized devices cannot gain access, safeguarding sensitive data and enhancing overall network integrity.

Layer 3 Routing Capabilities

The Catalyst 3550 series extends its capabilities beyond traditional Layer 2 switching by integrating Layer 3 routing features. Static routing allows precise control over traffic paths, while RIP and OSPF protocols provide dynamic routing solutions suitable for medium-sized networks. The WS-C3550-12T can efficiently handle inter-VLAN routing, reducing the need for external routers and simplifying network design. These Layer 3 capabilities make it ideal for organizations looking for a converged network infrastructure that supports both data and voice applications.

Scalability and Network Expansion

The modular design of the WS-C3550-12T ensures scalability for growing businesses. Additional switches can be easily integrated into the network using standard trunking and stacking techniques, enabling seamless expansion without service disruption. The switch’s support for EtherChannel allows multiple physical links to be combined into a single logical connection, increasing bandwidth and providing redundancy. This design flexibility ensures that the WS-C3550-12T can adapt to evolving business requirements, supporting a future-proof network architecture.

Security Features and Compliance

Network security is a critical consideration for any enterprise, and the WS-C3550-12T addresses these needs with robust protection mechanisms. The switch supports IEEE 802.1X port-based authentication, ensuring that only authorized users can access network resources. Access control lists (ACLs) provide granular control over traffic flow, allowing administrators to enforce policies that restrict sensitive data exposure. The Catalyst 3550 series also complies with industry standards for network security, ensuring that businesses meet regulatory requirements while protecting critical infrastructure.

Power Efficiency and Reliability

The Cisco WS-C3550-12T is designed with energy efficiency in mind, reducing operational costs while minimizing environmental impact. Its hardware components are optimized for low power consumption without compromising performance. The switch features redundant power options and robust cooling mechanisms, enhancing reliability and minimizing downtime. With Cisco’s renowned build quality, the WS-C3550-12T offers long-term durability, making it a dependable choice for enterprises seeking a balance between performance, efficiency, and resilience.

Voice and Video Integration

The WS-C3550-12T is well-suited for converged networks that carry voice, video, and data simultaneously. Its QoS capabilities prioritize latency-sensitive traffic such as IP telephony and video conferencing, ensuring consistent call quality and smooth media streaming. The switch also supports Cisco’s Voice VLAN technology, simplifying the deployment of voice networks and reducing configuration complexity. With these features, businesses can deploy integrated communication solutions without sacrificing network performance.

Use Cases for Cisco WS-C3550-12T

The Catalyst 3550 12-port switch is versatile and suitable for various network scenarios. It is ideal for small to medium enterprise branch offices requiring reliable Layer 2 and Layer 3 connectivity. Educational institutions can use it to segment student, faculty, and administrative traffic while maintaining secure and efficient communication. In retail and healthcare environments, the WS-C3550-12T ensures secure connectivity for point-of-sale systems, medical devices, and administrative networks. Its ability to handle converged data and voice traffic makes it a practical choice for multi-service deployments.

Deployment and Installation

Deployment of the WS-C3550-12T is straightforward, thanks to its compact design and flexible mounting options. The switch can be mounted in standard 19-inch racks or placed on desktops for smaller setups. Cisco provides comprehensive documentation and configuration guides to assist administrators during installation and integration. The switch supports auto-negotiation on all ports, simplifying network setup and reducing manual configuration errors. Its plug-and-play capabilities combined with advanced management options ensure quick deployment and efficient operation.

Integration with Cisco Ecosystem

The WS-C3550-12T seamlessly integrates with other Cisco devices and software solutions, including routers, firewalls, and network management platforms. This interoperability allows organizations to build cohesive network architectures with centralized management and streamlined troubleshooting. Compatibility with Cisco’s IP telephony and wireless solutions enables businesses to deploy unified communication networks that improve collaboration and operational efficiency. Leveraging Cisco’s ecosystem ensures that the WS-C3550-12T remains a scalable and future-ready network investment.

Advanced Features and Enhancements

Beyond standard switching and routing functions, the Catalyst 3550 series offers advanced features such as multicast support, Layer 3 IP routing protocols, and enhanced network security. The switch can handle Internet Group Management Protocol (IGMP) snooping for efficient multicast traffic management, reducing unnecessary load on the network. Support for advanced QoS policies and traffic shaping enables fine-tuned control over bandwidth allocation, ensuring optimal performance for all applications. These enhancements provide enterprises with a flexible, high-performance solution that adapts to complex network demands.

Reliability and Long-Term Support

Cisco has a proven track record of producing durable and reliable network devices. The WS-C3550-12T benefits from this legacy, offering long-term support and firmware updates that extend the switch’s operational lifespan. With Cisco’s technical assistance and extensive knowledge base, administrators have access to best practices, troubleshooting guides, and configuration support. This level of support ensures that the switch continues to operate efficiently in dynamic network environments while minimizing risk and downtime.

Environmental Considerations

The WS-C3550-12T is engineered with environmental responsibility in mind. Its energy-efficient components and intelligent cooling systems reduce power consumption and heat generation. Cisco adheres to environmental standards such as RoHS compliance, ensuring that the switch is manufactured with minimal impact on the environment. Businesses can deploy these switches with confidence, knowing they are meeting sustainability goals while maintaining high network performance.