What Is the Cisco DN3-HW-APL-L? Application H
Introduction to the Cisco DN3-HW-APL-L The Cisco ...
Introduction to the A9K-RSP5-X-TR=
The A9K-RSP5-X-TR= is a carrier-grade Route Switch Processor (RSP) designed for Cisco’s ASR 9000 Series routers. Engineered for high-density telecom and transport networks, this RSP optimizes performance in scenarios demanding ultra-reliable packet forwarding, such as 5G backhaul, metro core, and cloud interconnect deployments. Unlike general-purpose RSPs, the “TR” variant emphasizes traffic resilience and scalability under congestion.
Core Technical Advancements
- Throughput: 2.4 Tbps aggregate capacity, a 33% improvement over the A9K-RSP5-X-SE=, supporting 800G-ready line cards.
- Memory: 128 GB DDR4 RAM for deep buffer management during traffic spikes, paired with 2 TB NVMe SSD for rapid system recovery.
- Redundancy: N+3 redundancy support, ensuring five-nines availability in mission-critical telecom environments.
- Protocol Support: Enhanced compatibility with MPLS-TP, OTN, and Segment Routing-MPLS (SR-MPLS) for transport network integration.
A9K-RSP5-X-TR= vs. A9K-RSP5-X-SE=: Performance Breakdown
| Feature | A9K-RSP5-X-TR= | A9K-RSP5-X-SE= |
|---|---|---|
| Max Throughput | 2.4 Tbps | 1.8 Tbps |
| Buffer Memory | 128 GB | 64 GB |
| Redundancy Model | N+3 | N+2 |
| Power Consumption | 220W | 180W |
| Target Use Case | Telecom Transport | Enterprise Core |
The TR model prioritizes sub-millisecond latency and hitless software upgrades, critical for service providers managing SLA-bound traffic.
Addressing Deployment Concerns
Is the A9K-RSP5-X-TR= backward-compatible with older ASR 9000 chassis?
Yes, but it requires Cisco IOS XR 7.9.1+ and a minimum 4000W power supply per chassis for optimal operation.
How does it handle network congestion?
The processor employs Dynamic Buffer Allocation (DBA), which prioritizes mission-critical traffic (e.g., VoIP, IoT data) during congestion.
What are the cooling requirements?
Operates within 5°C to 35°C ambient temperatures. Chassis airflow must follow front-to-back cooling to avoid thermal throttling.
Procurement and Compatibility
For verified hardware with Cisco’s end-to-end support, [“A9K-RSP5-X-TR=” link to (https://itmall.sale/product-category/cisco/).
Final Evaluation
The A9K-RSP5-X-TR= isn’t just a hardware upgrade—it’s a strategic enabler for telecom operators transitioning to disaggregated network architectures. While its power and cooling demands are higher, the ability to future-proof for 800G interfaces and comply with stringent telecom SLAs justifies its adoption. Always conduct a pre-deployment traffic analysis to validate capacity planning, as under-provisioning this RSP could negate its performance advantages.