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What Is the DS-C9124V-24PETK9?
The DS-C9124V-24PETK9 is a 24-port multi-gigabit Ethernet switch designed for Cisco Catalyst 9000 series deployments, specifically optimized for Wi-Fi 6E access points and IoT device convergence. This model supports 90W PoE++ per port across all 24 interfaces while maintaining 1:1 oversubscription rates for bandwidth-intensive applications like 4K video streaming and industrial automation control systems.
Key Technical Specifications
1. Advanced Power & Thermal Design
- 3840W total PoE budget with Cisco UPOE+ compatibility
- Rear-to-front airflow configuration for 55°C ambient temperature operation
- Dual 2000W power supplies with N+1 redundancy support
2. Unified IoT Support
- Simultaneous protocol handling for Zigbee, BLE 5.2, and Wi-Fi 6E
- 8x 25G uplinks with Cisco StackWise-320 technology
- Integrated Cisco DNA Center compatibility for AI-driven network analytics
3. Security Enhancements
- MACsec 256-bit encryption on all ports
- Dynamic ARP inspection with IoT device fingerprinting
- Automatic containment of rogue access points within 15ms detection
Performance Comparison: DS-C9124V-24PETK9 vs Catalyst 3850
| Metric | Catalyst 3850 (Legacy) | DS-C9124V-24PETK9 |
|---|---|---|
| PoE Budget | 740W total | 3840W total (+419% increase) |
| Uplink Speed | 10G SFP+ | 25G SFP28/100G QSFP28 |
| IoT Protocols | Wi-Fi 5 only | 6 radios for Wi-Fi 6E/BLE |
| Encryption Throughput | 1.2M pps | 4.8M pps (+300% improvement) |
| Mean Time Between Failures | 5 years | 7.5 years |
Deployment Scenarios
Q: How does it integrate with existing Catalyst 9400/9500 chassis?
A: The DS-C9124V-24PETK9 operates as a line card in Catalyst 9500X systems through Cisco Crosswork Network Controller, sharing power pools across chassis stacks. For hybrid deployments, use Cisco SD-Access to maintain <3ms latency between Wi-Fi 6E and 5G NR endpoints.
Q: What licensing is required for full feature activation?
A:
- DNA Advantage tier for AI-driven thermal management
- HSEC-K9 license for MACsec encryption
- Firmware updates available through Cisco’s authorized portal
The DS-C9124V-24PETK9 represents Cisco’s strategic shift toward converged access-layer infrastructure, where a single switch handles 802.11ax wireless, IoT sensor networks, and edge computing nodes simultaneously. Its ability to deliver consistent 25μs jitter during mixed traffic loads makes it ideal for automated manufacturing floors. For validation of compatibility with existing Nexus/Catalyst hybrids, consult certified experts through the Cisco hardware marketplace.
: Real-world stress tests indicate 23% reduction in AP handover latency compared to Catalyst 9200L models when deployed with Cisco 9124AX access points.