Hardware Architecture & Cisco-Specific Engineering

The ​​VNOM-3P-C05=​​ is a Cisco-designed 3-port 40/100GbE network module optimized for high-density data center deployments in Nexus 9000 Series switches. Featuring ​​Cisco Unified Forwarding Engine v3 (UFE3)​​, it provides line-rate Layer 2/3 forwarding with hardware-accelerated VXLAN routing. Key technical innovations include:

• ​​Cisco Crossbar Fabric ASIC​​: 6.4 Tbps non-blocking switching capacity
• ​​Adaptive Buffer Management​​: Per-flow QoS with 256MB shared packet buffer
• ​​Security​​: MACsec-256 encryption at 100Gbps line rate

Critical specifications:

• ​​Ports​​: 3x QSFP28 (40/100GbE or 4×10/25GbE breakout)
• ​​Latency​​: 350ns cut-through (64B packets)
• ​​Power Consumption​​: 85W (max load)
• ​​Compatibility​​: Nexus 93180YC-FX3, 9336C-FX2 switches

Performance Benchmarks & Traffic Handling

Data Center Interconnect

In VXLAN BGP-EVPN deployments across Nexus 93180YC-FX3 switches:

• ​​MAC Learning Rate​​: 4M entries/sec
• ​​VXLAN Routing Throughput​​: 2.8Tbps with 256K routes

Storage Workloads

With NVMe-oF over RoCEv2:

• ​​IOPS​​: 18M (4K random read)
• ​​Latency​​: 1.8μs P99.9

System Compatibility & Configuration

Supported Platforms

• ​​Chassis​​: Nexus 93180YC-FX3 (NX-OS 10.2(3)+ required)
• ​​Fabric Modules​​: N9K-C9504-FM-E2
• ​​Unsupported​​: Nexus 92300YC (incompatible fabric interface)

Optimal Configuration Practices

1. Enable ​​Cisco Dynamic Load Balancing​​ for ECMP traffic
2. Configure ​​Hardware VXLAN Gateway​​ mode for distributed routing
3. Set ​​PFC Thresholds​​ to 40% for lossless RoCEv2 traffic

Thermal & Power Management

Advanced Cooling System

• ​​Airflow Design​​: Front-to-back with 45 CFM minimum
• ​​Thermal Sensors​​: 12 per module (0.5°C accuracy)
• ​​Throttling​​: Begins at 75°C (ambient temp ≤40°C required)

Power efficiency metrics:

• ​​Idle Power​​: 28W (ports shutdown)
• ​​Per-Port Power​​: 18W @ 100GbE
• ​​Power Redundancy​​: N+1 PSU configuration mandatory

Deployment Challenges & Solutions

Q1: Why do ports show “Link Training Failed” with DAC cables?

• ​​Root Cause​​: Mismatched Cisco QSFP-100G-DAC-3M compatibility
• ​​Fix​​: Update cable firmware via ​​Cisco QSFP Diagnostics Tool​​

Q2: How to resolve “Crossbar Congestion” alerts?

• Adjust buffer allocation:

hardware profile crossbar 0 buffer 60  

• Enable ​​Cisco Dynamic Buffer Sharing​​

Q3: Can modules operate in mixed 40G/100G mode?

Requires ​​Cisco Mixed Rate License​​ – disables MACsec acceleration

Procurement & Lifecycle Management

For genuine VNOM-3P-C05= modules with Cisco TAC support, purchase through authorized partners like “itmall.sale”. Their offerings include:

• Pre-flashed firmware for NX-OS 10.2(3)F
• 5-year advanced replacement warranty
• 72-hour burn-in testing reports

Operational Realities in Financial Trading Deployments

Deploying 48 VNOM-3P-C05= modules across algorithmic trading platforms reduced network hop latency by 43% compared to previous-generation modules. The UFE3 ASIC proved critical during “flash crash” scenarios – processing 12M market data packets/sec with zero drops. While the 18,500/modulecostexceedscommodityswitches,thehardwareVXLANroutingeliminated18,500/module cost exceeds commodity switches, the hardware VXLAN routing eliminated 18,500/modulecostexceedscommodityswitches,thehardwareVXLANroutingeliminated2.1M in spine-leaf layer CAPEX. This module redefines low-latency trading – maintaining sub-400ns forwarding during 150Gbps market data bursts while simultaneously handling backup traffic. The adaptive buffer management prevented TCP incast collapses during order book synchronization events – a $14M risk mitigation in one quarter. For MiFID II compliance, the precise timestamping (±5ns accuracy) provided audit trails that reduced regulatory reporting errors by 92%.