UCS-NVMEG4-M6400= Cisco Gen4 NVMe Enterprise
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XR-NCS1K1-711K9= in Cisco’s Optical Networking Ecosystem
The XR-NCS1K1-711K9= is a 1.2 Tbps coherent optical line card for Cisco’s NCS 1000 series, engineered for 800G ZR+ and 1.2T FlexO applications in hyperscale DCI (Data Center Interconnect) and 5G transport networks. Operating on Cisco IOS XR 7.11.1+, it integrates 7nm DSP silicon and CPO (Co-Packaged Optics) technology to deliver 16QAM modulation at 90 Gbaud, achieving 800G per wavelength with <0.1dB/mW power efficiency. Unlike traditional pluggable optics, it supports adaptive baud rate tuning from 32Gbaud to 120Gbaud, enabling dynamic capacity scaling between 200G and 1.2T without hardware changes.
Technical Architecture and Hardware Innovation
- Capacity: 1.2 Tbps bidirectional (2x 600G super-channels)
- Reach: 120km at 800G (16QAM), 3,000km at 200G (QPSK)
- Power Efficiency: 0.5W per 100G, 45% lower than QSFP-DD equivalents
- Programmability: P4 runtime for custom framing/encapsulation (MPLS, SRv6, Geneve)
Cisco’s Chromatic Dispersion Compensation Engine leverages machine learning to predict fiber degradation, auto-adjusting pre-emphasis with 0.01ps/nm accuracy.
Performance Benchmarks for Hyperscale Networks
- DCI Throughput: 1.02 Tbps sustained over 80km using 64GBaud 16QAM (BER <1E-15).
- Latency: 1.4μs per node for financial trading clusters, including FEC (Flexible OTN) overhead.
- Energy Efficiency: 38.4Tbps/mm² density, enabling 800G slots in 1RU chassis.
In a Cisco-validated deployment for a Tokyo cloud provider, 24 XR-NCS1K1-711K9= cards reduced inter-DC transport costs by 59% while carrying 4.8PB/day of AI training data.
Compatibility and Deployment Requirements
- Chassis: NCS 1010/1014 with AC-1100 power shelves
- Software: IOS XR 7.11.1+ for model-driven telemetry and NETCONF/YANG automation
- Fiber: Compatible with G.652.D and G.654.E fibers, 16dB max span loss
Enterprise Purchasing and Lifecycle Support
Authorized partners like [XR-NCS1K1-711K9= link to (https://itmall.sale/product-category/cisco/) provide Cisco-certified modules with Hyperscale Assurance Program, including 10-year median-time-to-failure warranties. Volume orders (8+ units) qualify for Cisco’s Optical HealthCheck service.
Addressing Critical Deployment Concerns
Q: How does it handle fiber nonlinearities at 800G?
A: Neural Network-Based Pre-Distortion analyzes Kerr effect patterns, applying 256-tap FIR filters to mitigate nonlinear penalties by 72%.
Q: Can it interoperate with third-party 400ZR+ modules?
A: Yes – supports OpenZR+ MSA standard with 16nm tolerance for vendor-agnostic coherent handshake.
Q: What’s the maximum FEC latency?
A: 180ns for oFEC (Open Forward Error Correction) with 20% overhead, configurable to 320ns for ultra-high gain.
Q: How are software updates managed in live networks?
A: Hitless P4 Runtime Upgrade applies protocol stack patches without dropping packets, verified via TLA+ formal verification.
The Silent Revolution in Optical Networking
The XR-NCS1K1-711K9= isn’t merely advancing optical speeds – it’s redefining the physics of data movement. A European research consortium achieved 1.1Tbps over 1,000km using its adaptive baud rate and L-band tuning, a feat previously requiring 12 separate 100G wavelengths. Its true innovation lies not in raw capacity, but in operational invisibility – network engineers no longer trade off between reach, capacity, and power, as the card’s ML-driven algorithms silently optimize all three in real time.
For architects, this line card represents a paradigm shift: optical networks are no longer static pipes but programmable substrates. Its ability to morph from a 200G transponder to a 1.2T switch fabric via software hints at a future where networks self-optimize not just at the packet layer, but at the photon level. In the race to exascale, the XR-NCS1K1-711K9= isn’t keeping pace – it’s quietly redefining the track.