Cisco WS-C3548-XL-EN is a Layer 2 managed Fast Ethernet switch from the Catalyst 3500 XL Series, designed for enterprise access-layer deployments.

It provides 48 Fast Ethernet ports for desktop connectivity and includes an uplink module slot for flexible backbone connections. The “EN” designation indicates Enterprise Edition software, offering enhanced management and VLAN capabilities.

This switch was widely deployed in campus networks and enterprise wiring closets during early Gigabit transition phases.

? KEY FEATURES

• 48 × 10/100 Fast Ethernet ports
• Modular uplink slot (Fast Ethernet or Gigabit uplink modules)
• Enterprise Edition (EN) IOS feature set
• Layer 2 switching with VLAN support
• Web-based, CLI, and SNMP management
• Cisco IOS-based operation
• Rack-mountable design

⚙️ TECHNICAL SPECIFICATIONS

? Hardware Platform

• Series: Cisco Catalyst 3500 XL
• Model: 3548 XL (WS-C3548-XL-EN)
• Switch type: Layer 2 managed switch
• Software: Cisco IOS (Enterprise Edition)
• Form factor: 1U rack-mount

? Interfaces

• 48 × 10/100Base-TX Ethernet ports
• 1 × modular uplink slot (supports Gigabit or Fast Ethernet uplink modules)
• Console port for management

⚡ Performance

• Switching fabric: ~10 Gbps
• Forwarding rate: ~7.5 Mpps
• Store-and-forward switching architecture

? Features

• VLAN support (IEEE 802.1Q, ISL)
• QoS (basic traffic prioritization)
• Spanning Tree Protocol (STP)
• Port security features
• SNMP network management