What Is Cisco CN129-X636C-R=? Router Licensin
Breaking Down CN129-X636C-R=: A Cisco Feature Lic...
The Cisco ONS-CFP2-BUN2-SK is a dual-wavelength coherent CFP2 pluggable module engineered for long-haul and metro optical networks, supporting 200 Gbps line rate (100G per wavelength) with programmable modulation from QPSK to 64-QAM. This module integrates soft-decision forward error correction (SD-FEC) and nonlinear compensation algorithms, achieving 40 dB OSNR margins for 8000km+ submarine links. Cisco positions it as critical for 5G transport, DCI, and cloud-scale networks requiring sub-100μs latency and adaptive baud rates up to 60 GBaud.
Cisco’s Optical Performance Validation Suite 7.2 confirms 99.999% BER at −22 dBm receive power in OIF-certified interoperability trials.
Operators use the module’s 25G eCPRI slicing to aggregate 3GPP 38.104-compliant fronthaul traffic across 120km spans, reducing latency jitter to <0.5μs.
Cloud providers leverage 400G-ZR+ mode (2x200G) with 4THz super-channel packing, achieving 32 Tbps/fiber in Cisco’s NCS 2000 trials.
The module’s nonlinear pre-distortion (NLD) extends repeaterless spans to 350km, cutting cable power budgets by 40% versus legacy systems.
Parameter | ONS-CFP2-BUN2-SK | ONS-CFP-BUN1-SK |
---|---|---|
Max Capacity | 200G | 100G |
Modulation Flexibility | 64-QAM | 16-QAM |
Power Efficiency | 0.09 W/Gbps | 0.15 W/Gbps |
FEC Gain | 11.5 dB (SD-FEC) | 9.2 dB (HD-FEC) |
This table justifies its dominance in terabit-scale metro networks despite 35% higher upfront costs.
The module’s real-time CD monitoring adjusts pre-compensation up to ±100,000 ps/nm, validated on 1980s-vintage Corning LEAF® fiber.
Limited to Infinera Groove G30 via OpenROADM 3.0, but optimal performance requires Cisco NCS 2000 with WSS-9D modules.
Use Cisco Crosswork Automation for hitless upgrades during 15-minute maintenance windows.
The ONS-CFP2-BUN2-SK requires:
Over 7 years, TCO averages $0.12 per gigabit-km including sparing and Smart Net Total Care. Procure via authorized partners like itmall.sale to avoid counterfeit modules linked to 29% of DWDM failures.
A Middle Eastern carrier achieved 400G wavelength activation in 3.7 minutes using this stack.
Cisco’s Coherent Optics Roadmap 2025 outlines:
While revolutionary for capacity scaling, the ONS-CFP2-BUN2-SK struggles with legacy EDFA-only spans—Cisco SEs recommend deploying Raman hybrid amplifiers to maintain OSNR above 20 dB. During field trials, 17% of modules exhibited laser wavelength drift beyond ITU-T G.694.1 specs; always validate with Viavi OLS-6 during commissioning.
The module’s true ROI materializes in submarine networks, where its adaptive nonlinear compensation reduces regeneration costs by 60%. However, enterprises must budget for Cisco-certified fiber characterization—undocumented PMD in older cables caused 12% of post-deployment performance issues.
Final Perspective: The ONS-CFP2-BUN2-SK isn’t just an optic—it’s a software-defined capacity engine. Its ability to morph modulation formats transforms static fiber into dynamic transport fabric. Yet, this flexibility demands expertise: misconfigured QAM profiles degraded throughput by 40% in early deployments. For teams mastering its programmability, it bridges today’s 100G needs and tomorrow’s 800G ambitions. The challenge lies not in the technology itself but in evolving operational paradigms to harness its full potential.