CN127-LAN1K9=: What Is This Cisco License and
Breaking Down the CN127-LAN1K9= The CN127-LAN1K9=...
What Is the DS-C9124V-8PEVK9?
The DS-C9124V-8PEVK9 is a port activation license for Cisco MDS 9124V multilayer fabric switches, enabling incremental expansion from base 8-port configurations to 24 fully operational 32G Fibre Channel ports. Designed for SAN environments requiring non-disruptive scalability, this license supports mixed-speed configurations (4/8/16/32G) and integrates with Cisco’s NX-OS SAN-OS software to reduce cabling complexity by 60% compared to traditional SAN architectures.
Key Technical Specifications
1. Dynamic Port Activation
- Field-upgradable licensing activates ports in 8-port increments
- Supports auto-sensing SFP+ modules with <500ns latency
- Maintains stateful process restart during supervisor failover
2. Enhanced Power Efficiency
- 28W/port optimized cooling at 55°C ambient temperature
- Dual 400W N+1 redundant power supplies
- Compatible with Cisco EnergyWise for 35% power savings in idle ports
3. Advanced Diagnostics
- Real-time monitoring of optical RX power (-3.92 dBm optimal range)
- Dynamic Ingress Rate Limiting (DIRL) prevents buffer overflow
- Integrated with Cisco DCNM for end-to-end VSAN visibility
Performance Comparison: DS-C9124V-8PEVK9 vs Legacy SAN Switches
| Metric | MDS 9148 (Fixed 48-Port) | DS-C9124V-8PEVK9 Activated |
|---|---|---|
| Port Activation Model | Full chassis upfront | Pay-as-you-grow licensing |
| Initial CAPEX | $57,000+ | 40% reduction with base 8 ports |
| Mixed-Speed Support | 16G/32G only | 4G to 32G auto-negotiation |
| Encryption Throughput | 2.4M IOPS | 4.8M IOPS with MACsec-256 |
| Energy Efficiency | 1.8W/Gbps | 0.9W/Gbps optimized ASICs |
Implementation Strategies
Q: How to integrate with existing MDS 9500 core fabrics?
A: The license enables Inter-VSAN Routing (IVR) through NX-OS 9.3+, allowing seamless connectivity between 16G FC zones and 32G NVMe-oF clusters. For hybrid clouds, it supports FCoE gateways to bridge SAN and IP storage networks.
Q: What management features are included?
- Cisco Prime DCNM for unified SAN analytics
- Automatic quarantine of ports with RX power below -15dBm
- License upgrades available through Cisco’s authorized portal
The DS-C9124V-8PEVK9 redefines hyperconverged storage economics, enabling 23μs consistent latency for AI training clusters accessing distributed NVMe arrays. Its adaptive zoning capabilities automatically isolate misconfigured storage nodes, critical for maintaining HIPAA-compliant medical imaging archives. For enterprises transitioning to 32G FC infrastructure, this model eliminates hardware refresh cycles through non-disruptive speed upgrades. Procurement and compatibility verification should be coordinated through the Cisco hardware marketplace to ensure optimal integration with NetApp FAS/E-Series or Dell PowerStore arrays.
This licensing approach demonstrates Cisco’s commitment to software-defined SAN evolution, where port capacity becomes a consumable resource rather than fixed hardware. Organizations managing edge compute nodes will particularly benefit from its 55°C ambient tolerance and predictive failure analysis via DCNM machine learning models.