​Core Functionality of the C9400-LC-24XY++=​

The ​​Cisco C9400-LC-24XY++=​​ is a ​​high-density line card​​ engineered for the ​​Catalyst 9400 Series modular switches​​, delivering ​​24x 10/25G MultiGigabit Ethernet ports​​ and ​​4x 40/100G QSFP28 uplinks​​. Designed for ​​enterprise core​​ and ​​data center deployments​​, it combines ​​ultra-low latency​​ with ​​scalable power efficiency​​, making it suitable for environments demanding ​​high-throughput traffic​​ and ​​future-ready adaptability​​. The ​​“++=” suffix​​ signifies a ​​premium licensing tier​​ with advanced features like ​​Cisco DNA Assurance​​ and ​​Full Stack Observability (FSO)​​.

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​Technical Breakdown​

  • ​Port Configuration​​: ​​24x 10/25G MultiGig ports​​ (RJ45/SFP28) + ​​4x 40/100G uplinks​​, enabling flexible ​​spine-leaf architectures​​ or ​​high-speed server connectivity​​.
  • ​Performance​​: Built on ​​Cisco’s Cloud Scale ASIC​​, it supports ​​1.2 Tbps per-slot bandwidth​​ and ​​MACsec encryption​​ for secure data transit.
  • ​Scalability​​: Integrates with ​​Cisco StackWise Virtual​​ for ​​multi-chassis link aggregation​​, simplifying management across ​​distributed campuses​​.
  • ​Energy Efficiency​​: ​​Dynamic Power Sharing​​ allocates up to ​​90W per MultiGig port​​ (UPOE++) while reducing idle power consumption by ​​30%​​.

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​Compatibility Requirements​

This line card is ​​exclusive to the Catalyst 9400 chassis​​ (e.g., ​​C9407R​​, ​​C9410R​​) and requires ​​Cisco IOS-XE 17.12 or later​​. It ​​does not function​​ in legacy platforms like the ​​Catalyst 9300​​ or ​​4500 Series​​. Ensure chassis power supplies meet ​​4200W minimum​​ for full UPOE++ utilization.

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​Key Deployment Scenarios​

  1. ​Data Center Fabric​​: Supports ​​NVMe-over-Fabrics​​ and ​​AI/ML workloads​​ with 100G uplinks for east-west traffic.
  2. ​Enterprise Core​​: Handles ​​VoIP​​, ​​videoconferencing​​, and ​​zero-trust segmentation​​ at scale.
  3. ​Smart Cities/Metro Networks​​: Powers ​​IoT gateways​​ and ​​edge compute nodes​​ with UPOE++ for outdoor devices.

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​C9400-LC-24XY++= vs. C9400-LC-48T​

​Feature​ ​C9400-LC-24XY++=​ ​C9400-LC-48T​
​Port Types​ 24x 25G + 4x 100G 48x 1G
​Max PoE Budget​ 2.16kW (UPOE++) 740W (PoE+)
​Use Case​ Hyperscale/core Basic access layer
​Advanced Features​ DNA Assurance, FSO Base telemetry

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​Procurement Considerations​

For authentic ​​C9400-LC-24XY++=​​ line cards and Cisco-backed support, visit “C9400-LC-24XY++=” at itmall.sale. Verify chassis compatibility and power capacity before purchasing.

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​Practical Analysis​

The ​​C9400-LC-24XY++=​​ is a ​​game-changer for organizations scaling hybrid cloud or AI infrastructure​​, but its complexity demands skilled network engineers. While its ​​100G uplinks​​ and ​​UPOE++​​ justify the cost for high-density use cases, smaller businesses may find it overkill. Prioritize this line card if your strategy includes ​​intent-based networking​​ or ​​multi-domain automation​​—otherwise, simpler alternatives could suffice.

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