The c930048ta Cisco Catalyst 9300 48port data only network access switch delivers a dense, high-performance layer for demanding campus and branch deployments. Designed for data-only environments, it provides 48 fixed Gigabit Ethernet ports optimized for server aggregation and dense user connectivity.
Engineered to integrate seamlessly with Cisco DNA Center and the broader Catalyst 9000 ecosystem, this model emphasizes automated operations, inline security, and simplified lifecycle management. It targets organizations that require a fixed-port access layer solution with rich visibility and resilient feature sets without adding wireless or multimedia extras.
| Model | Ports | PoE Type | Management |
|---|---|---|---|
| Catalyst 9300 48P Data Only (c930048ta) | 48 x 10/100/1000BASE-T | None (data only) | Cisco DNA Center, CLI, SNMP |
| Catalyst 9300 48P PoE+ | 48 x 10/100/1000BASE-T | UPoE at 60W per port | Cisco DNA Center, CLI, SNMP |
| Catalyst 9300 24P Nano | 24 x 10/100/1000BASE-T | Optional PoE | Cisco DNA Center, CLI |
| Catalyst 9300 48P Modular | {td}48 x SFP or 10GBASE-T moduleOptional PoE | Cisco DNA Center, CLI, SNMP |
Access Layer Design with c930048ta
As a fixed-access layer platform, the c930048ta Cisco Catalyst 9300 48port data only network A targets environments where pure data connectivity is required. Its 48 Gigabit ports support dense top-of-rack or wiring closet aggregation while keeping power and cooling overhead predictable.
The fixed-port model simplifies cabling strategies and reduces operational variability compared to modular chassis alternatives. Organizations benefit from consistent policy enforcement across Catalyst 9000 devices, whether the deployment spans a single campus or many distributed branches.
Performance, Capacity, and Forwarding
Performance-oriented features such as large MAC tables, IPv4 and IPv6 FIB/TCAM resources, and per-port queueing ensure stable behavior in oversubscribed data-only segments. The switch maintains line-rate performance for average bursts common in enterprise data flows, supporting jumbo frames and standard L2/L3 protocols.
Layer 2 and Layer 3 Capabilities
Advanced Layer 2 capabilities include VLAN agility, link aggregation, and robust spanning optimizations. Layer 3 features support routed access port models, inter-VLAN routing, and basic policy-based routing to simplify flatter network designs without requiring a separate router blade.
Capacity Planning Guidance
Capacity planning guidance from Cisco positions this model around moderate server densities and access switch consolidation. With sufficient uplink headroom and careful use of VLAN pruning, the 48-port fixed configuration can serve mixed device types while preserving buffer for future growth.
Automation, Security, and Management
Integration with Cisco DNA Center enables zero-touch provisioning, device images, and compliance baselines. NetdevOps workflows bring CLI-level control into CI/CD pipelines, while built-in telemetry streams enhance visibility into microbursts, error rates, and application flows.
Security and Trust
Security features such as port and DHCP snooping, Dynamic ARP Inspection, and TrustSec secure connectivity for data-only segments. Integrated AAA with 802.1X and MACsec support further strengthens policy enforcement and data integrity.
Visibility and Telemetry
Streaming Telemetry and NetFlow provide actionable insights without heavy collector overhead. SNMP remains available for environments relying on legacy NMS, while real-time dashboards in DNA Center simplify capacity and anomaly detection.
Deployment, Sizing, and Compatibility
Deployment scenarios include high-density wiring closets, departmental aggregators, and branch POPs where only data endpoints are present. The fixed 1U form factor allows for standard rack installation, and stacking behavior must be validated per model revision.
Physical and Environmental Considerations
Ensure adequate airflow and power delivery for sustained operation, particularly when stacking or running long Cat 6a patch cables. Refer to the hardware documentation for exact current draw and temperature thresholds under full load.
Compatibility and Uplink Options
Backward compatibility with existing Catalyst 9000 software images and modular uplink modules delivers flexibility in connecting to distribution layer gear or campus core. Verify transceiver compatibility and port role assignments during migration planning.
Operational Best Practices and Recommendations
- Baseline performance metrics under normal load to detect deviations quickly.
- Use consistent VLAN and trunking strategies across the Catalyst 9000 estate.
- Enable streaming Telemetry selectively on critical ports to balance insight and resource usage.
- Schedule regular firmware validation cycles in a lab before production deployment.
- Document uplink mappings and port roles to simplify troubleshooting and audits.
- Leverage DNA Center templates for consistent security and QoS policies across branches.
FAQ
Reader questions
Can the c930048ta Cisco Catalyst 9300 48port data only network A support fiber uplinks?
Yes, by using available SFP modules and optional uplink ports, you can connect this model to fiber infrastructure while maintaining data-only segmentation.
How does this switch handle IPv6 traffic in a campus environment?
IPv6 is supported for unicast, multicast, and routing, enabling dual-stack endpoints and IPv6-only segments without additional licensing on most access policies.
What is the recommended approach for firmware upgrades within Cisco DNA Center?
Schedule staged deployments, validate image compatibility with your hardware revision, and maintain a pre-tested golden image for rapid rollback when needed.
Does the c930048ta model support energy efficient Ethernet and power management profiles?
Yes, it supports Energy Efficient Ethernet features and power management profiles to reduce idle port consumption while preserving performance during active periods.