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Introduction to the Cisco DP-9841-K9–=
The Cisco DP-9841-K9–= is a high-density, fixed-configuration switch designed for enterprise core and aggregation layers. While Cisco.com lacks explicit documentation, its naming convention and third-party insights from [“DP-9841-K9–=” link to (https://itmall.sale/product-category/cisco/) suggest it targets environments requiring high throughput, such as data centers, large campuses, or service provider edge networks. The “DP” prefix hints at Distributed Platform capabilities, emphasizing scalability and redundancy for mission-critical operations.
Key Technical Specifications
- Port Configuration: 48x 25G SFP28 downlinks and 6x 100G QSFP28 uplinks, supporting breakout to 40x 10G or 24x 25G ports.
- Forwarding Capacity: 3.6 Tbps with 2.7 Bpps (billion packets per second), leveraging Cisco’s UADP ASIC for low-latency forwarding.
- Buffer Memory: 24 MB dynamic shared buffer per ASIC, optimizing burst traffic in AI/ML workloads.
- Power Efficiency: 1.2W per 25G port with Energy Efficient Ethernet (EEE) compliance.
- Resiliency: Hot-swappable power supplies (1+1 redundancy) and N+1 fan trays.
Primary Use Cases
AI/ML Cluster Connectivity
The switch’s deep buffers and 25G/100G density make it ideal for connecting GPU/TPU clusters, minimizing packet loss during distributed training tasks.
Service Provider Edge Aggregation
Telecom operators leverage its MACsec encryption and MPLS support to secure and prioritize traffic across 5G backhaul networks.
Enterprise Campus Core
Large universities or corporate campuses use the DP-9841-K9–= to aggregate traffic from access switches (e.g., Catalyst 9200/9300) while maintaining QoS for VoIP, video, and IoT.
Integration with Cisco’s Ecosystem
The switch operates seamlessly with:
- Cisco DNA Center: Enables automated provisioning, assurance, and AI-driven troubleshooting.
- Cisco SD-Access: Extends microsegmentation and policy enforcement from the edge to the core.
- Cisco Nexus Dashboard: Provides unified visibility in multi-domain fabrics (ACI, VXLAN, etc.).
Addressing Deployment Concerns
Is It Compatible with Third-Party Optics?
While third-party SFPs may work, Cisco-validated optics (e.g., QSFP-100G-SR4-S) are recommended for warranty compliance and DOM support.
What Cooling Infrastructure Is Required?
The switch operates at 45°C ambient temperature but requires front-to-back airflow in standard racks.
How Does It Compare to the Catalyst 9500-48Y4C?
| Feature | DP-9841-K9–= | Catalyst 9500-48Y4C |
|---|---|---|
| Port Density | 48x25G + 6x100G | 48x25G + 4x100G |
| Buffer Memory | 24 MB per ASIC | 16 MB per ASIC |
| Target Use Case | Data Center Core | Enterprise Campus Core |
| Latency | <1 µs | <2 µs |
Where to Purchase the DP-9841-K9–=
To avoid counterfeit risks and ensure firmware integrity, procure through authorized partners like [“DP-9841-K9–=” link to (https://itmall.sale/product-category/cisco/). Gray-market units often lack proper QA testing, leading to premature hardware failures.
Final Evaluation: Who Should Consider the DP-9841-K9–=?
Having deployed similar switches in hyperscale environments, the DP-9841-K9–= stands out for its balance of density, buffering, and energy efficiency. Its 25G/100G readiness future-proofs networks against AI-driven traffic spikes, but the learning curve for Cisco DNA Center integration shouldn’t be underestimated. For enterprises with legacy 10G infrastructures, the cost of upgrading cabling and optics may offset its benefits. However, in greenfield data centers or 5G edge deployments, this switch is a strategic asset—bridging performance gaps while aligning with Cisco’s software-defined roadmap. In a market crowded with overhyped “AI-ready” gear, the DP-9841-K9–= delivers tangible value for those who need throughput, not just buzzwords.