Cisco WS-C3550-48-SMI Catalyst

Cisco WS-C3550-48-SMI Catalyst Switch Overview

The Cisco WS-C3550-48-SMI Catalyst Switch is a reliable, enterprise-grade Layer 3 Fast Ethernet switch designed to deliver intelligent services and robust performance for converged networks. As part of the Cisco Catalyst 3550 Series, this model enables secure, scalable, and manageable network infrastructure for small and medium-sized businesses, departmental backbones, and campus edge deployments.

Featuring 48 Fast Ethernet 10/100 ports and powered by the Standard Multilayer Image (SMI), the WS-C3550-48-SMI supports essential Layer 3 routing features such as static IP routing and RIP. It delivers key enterprise-class services including Access Control Lists (ACLs), multicast management, and quality of service (QoS), providing the intelligence needed to support voice, video, and data applications.

Key Features and Benefits

The “Key Features and Benefits” section highlights the most important technical capabilities and advantages of the Cisco WS-C3550-48-SMI switch. This part serves as a concise overview that helps network engineers, IT managers, and decision-makers quickly understand what makes this switch stand out in terms of performance, scalability, security, and manageability.

By focusing on these features, users can assess how the switch aligns with their network requirements—whether it’s for improving data throughput, enhancing security, supporting converged voice and video traffic, or simplifying network management.

In other words, this section distills the complex technical details into practical benefits that demonstrate how the switch can contribute to a reliable, efficient, and future-ready network infrastructure.

• 48 x 10/100 Fast Ethernet Ports

Offers high-density Fast Ethernet connectivity for end-user devices, access points, IP phones, and more. Ideal for wiring closets and campus edge environments where cost-effective performance is required.

• Standard Multilayer Image (SMI)

Enables basic Layer 3 routing features, including static IP routing and RIP, allowing simplified traffic segmentation and route optimization without requiring a separate router.

• Intelligent Network Services

Built-in support for QoS, ACLs, and multicast protocols (IGMP snooping, PIM) ensures optimal handling of time-sensitive applications such as VoIP and video streaming, while maintaining traffic security and integrity.

• Cisco Cluster Management Suite (CMS)

A user-friendly, browser-based management tool that allows centralized configuration and troubleshooting of multiple Catalyst switches, dramatically reducing administrative overhead.

• Robust Security Features

Port security, DHCP snooping, Layer 2/3 ACLs, and broadcast suppression are included to mitigate internal threats and enforce network access policies.

• Scalable and Flexible Deployment Options

Perfect for access layer deployments in enterprise LANs or distribution roles in smaller networks, the WS-C3550-48-SMI offers flexibility for future expansion through advanced software upgrades (e.g., to EMI for dynamic routing protocols).

• Compact Form Factor with Fan-Based Cooling

Standard 1U rack-mountable chassis fits easily into network racks, with integrated fans ensuring thermal efficiency in dense installations.

Technical Specifications at a Glance

Why Choose Cisco WS-C3550-48-SMI?

The WS-C3550-48-SMI is a proven choice for organizations that need intelligent Ethernet switching with integrated Layer 3 functionality at the access layer. Its robust feature set, including essential routing, QoS, and security mechanisms, makes it an excellent fit for secure, converged enterprise networks.

This switch provides an affordable path toward network intelligence, supporting voice and video applications while maintaining traditional LAN simplicity. For businesses requiring scalability and centralized management, the built-in CMS software and flexible software upgrade paths offer long-term adaptability.

Ideal Applications

1. Enterprise access and departmental switches

2. Campus edge and metro access networks

3. VoIP and IP surveillance deployments

4. Branch office connectivity

5. Converged data, voice, and video environments

You can also visit the manufacturer’s website link for more information.

You can also visit the Cisco WS-C3560-48TS-S Catalyst , Cisco WS-C3548-XL-EN Catalyst , Catalyst Switches pages if you wish.