Managed L2/L3 Gigabit Ethernet Switch Cisco Catalyst C9300-48T-A

The Cisco Catalyst C9300-48T-A is a managed L2/L3 Gigabit Ethernet switch with 48 RJ-45 ports supporting 10/100/1000 Mbps, designed as part of the Cisco Catalyst 9300 Series stackable enterprise platform. It provides a 256 Gbit/s switching capacity, a MAC address table of 32,000 entries, and support for modern networking standards. Built for secure, scalable campus and branch deployments, the switch supports advanced features such as StackWise stacking, Cisco UADP 2.0 architecture, Cisco IOS XE programmability, and high-density PoE options through the series family.

Advantages

The switch offers high switching capacity and a large MAC table for dense access deployments, full compliance with common IEEE networking standards for interoperability, and managed L2/L3 functionality for flexible deployment scenarios. As part of the Catalyst 9300 Series, it supports StackWise stacking for simplified management and resilient operation, and it runs Cisco IOS XE to enable programmability and enhanced security features. Rack-mountable design and a grey metal chassis make it suitable for standard enterprise racks.

Suitable for

• Enterprise access layer deployments requiring 48 Gigabit Ethernet ports
• Campus and branch networks needing managed L2/L3 switching
• Environments that use SD-Access and Cisco DNA architectures
• Racks where high switching capacity and IEEE standard compatibility are required

Key specifications

• Model: Cisco Catalyst C9300-48T-A (MPN: C9300-48T-A, EAN: 0889728051637)
• Ports: 48 × RJ-45 Gigabit Ethernet (10/100/1000)
• Switching capacity: 256 Gbit/s
• MAC address table: 32,000 entries
• Management: Managed L2/L3 switch, Cisco IOS XE
• Standards: IEEE 802.3u, 802.1Q, 802.1p, 802.1s, 802.1w, 802.1x, 802.3ad, 802.3af, 802.3ap, 802.3bz, 802.1D, 802.3z
• Colour: Grey

How to use

Install the C9300-48T-A in a standard 19-inch rack using the provided mounting hardware. Connect access devices to the 48 RJ-45 Gigabit Ethernet ports and uplink to the aggregation or core layer using supported uplink modules or stacking cables for StackWise. Configure basic IP management, VLANs, and L2/L3 routing using the Cisco IOS XE command-line interface or a management platform compatible with Cisco DNA. Apply security and QoS policies according to your network design, and monitor switch health and performance through SNMP or telemetry tools.

Recommendations

For redundancy and simplified management in larger deployments, use StackWise stacking with other Catalyst 9300 switches and integrate the device into Cisco DNA/SD-Access for policy-based automation. Follow Cisco’s guidelines for cooling, power provisioning, and firmware updates to maintain performance and security.