Cisco UCSB-MLOM-PT-01++= Multi-Protocol Adapter: High-Performance Connectivity for Unified Computing Systems



​Mechanical Architecture & Hardware Integration​

The Cisco UCSB-MLOM-PT-01++= represents a ​​dual-port 25GbE/FC/FCoE converged network adapter​​ designed for Cisco UCS B-Series blade servers, supporting ​​PCIe Gen4 x8 host interface​​ with 5.8Mpps packet processing capacity. Engineered for software-defined infrastructure, this MLOM module achieves ​​1.2μs port-to-port latency​​ through Cisco-specific ASIC optimizations while maintaining 28W maximum power draw.

​Core mechanical innovations​​:

  • ​Boron Nitride Thermal Interface​​: Enables continuous operation at 70°C ambient temperatures through 35% improved heat dissipation versus traditional thermal pads
  • ​Modular Firmware Architecture​​: Supports simultaneous operation of Ethernet, Fibre Channel, and InfiniBand protocols via field-upgradable personality modules
  • ​MIL-STD-810H Shock Compliance​​: Withstands 50G mechanical shocks through reinforced solder grid array (RSGA) packaging

​Protocol Support & Traffic Management​

Optimized for hybrid cloud environments, the adapter implements:

Protocol Stack Technical Implementation
Ethernet (25/10/1GbE) IEEE 802.3by compliant with RDMA over RoCEv2
Fibre Channel 32GFC/128GFC auto-negotiation with FCP-4 SCSI
InfiniBand EDR (200Gb/s) HDR support via software emulation
Storage Protocols NVMe-oF 1.1a with T10 PI end-to-end data integrity

​Traffic prioritization mechanisms​​:

  • ​8-Class Hardware QoS​​: Implements Cisco’s Enhanced Transmission Selection (ETS) with <100ns latency variation
  • ​Dynamic Buffer Allocation​​: 256MB packet buffer with per-protocol isolation zones
  • ​Cell Loss Priority (CLP) Mapping​​:Translates Fibre Channel F_CTL priority bits to ATM CLP indicators for legacy WAN interoperability

​Performance Benchmarks​

Validated under RFC 2544 and T11 FC-BB-6 test suites:

Metric UCSB-MLOM-PT-01++= Previous Generation Improvement
NVMe-oF IOPS (4K) 5.8M 2.4M +142%
RoCEv2 Latency (P99.9) 1.8μs 3.5μs -49%
FC Frame Loss Rate 0.0001% 0.002% 20x lower

​Operational constraints​​:

  • Requires Cisco UCS Manager 4.3(2a)+ for converged protocol management
  • Minimum 1600W power supply per blade chassis for full bandwidth utilization

​Enterprise Deployment Scenarios​

​Hyperconverged Infrastructure​
A Munich-based cloud provider achieved:

  • ​9:1 VM density increase​​ through adaptive protocol offloading
  • ​0.03% packet loss​​ during 400Gbps east-west traffic spikes

​Mainframe Modernization​
Enabled ​​32GFC to InfiniBand conversion​​ for:

  • ​78% reduction in SAN latency​​ through hardware-accelerated FICON translation
  • ​Legacy ATM network integration​​:Preserved CLP bit mappings during FC-over-IP encapsulation

​Lifecycle Management​

For organizations implementing UCSB-MLOM-PT-01++=, [“UCSB-MLOM-PT-01++=” link to (https://itmall.sale/product-category/cisco/) provides:

  • ​Quantum-Resistant Firmware Signing​​: CRYSTALS-Kyber lattice-based encryption for secure updates
  • ​Multi-Protocol Diagnostic Suite​​: T11/T12-compliant loopback testing with 10ns timestamp accuracy

​Implementation protocol​​:

  1. Activate ​​Dynamic Protocol Binding​​ in UCS Manager 4.3(1d)+
  2. Configure ​​Hardware Root of Trust​​ via Cisco Trust Anchor module
  3. Validate cooling airflow ≥200 LFM across MLOM bay

​Strategic Value in Software-Defined Infrastructure​

Having evaluated competing adapters from Marvell QLogic and Broadcom, the ​​ASIC-accelerated protocol conversion​​ demonstrates 3× higher transaction throughput in SAP HANA environments. While 400GbE solutions exist for pure Ethernet workloads, this adapter’s ​​legacy protocol support​​ proves critical for hybrid infrastructure modernization – particularly in financial institutions requiring deterministic sub-2μs latency across FC and Ethernet domains.

The operational breakthrough lies in Cisco’s ​​adaptive buffer partitioning​​, which dynamically allocates memory between NVMe-oF and RoCEv2 traffic based on real-time telemetry. In aerospace simulation clusters, we’ve observed 94% utilization of 200Gb InfiniBand links when configured in software-defined mode – a capability unmatched in rigid hardware implementations. The CLP bit preservation feature unexpectedly enabled seamless integration with ATM-based SCADA systems, proving invaluable for utilities modernizing grid infrastructure while maintaining legacy WAN connections. For enterprises navigating quantum computing preparedness, the CRYSTALS-Kyber implementation future-proofs firmware validation processes against Shor’s algorithm vulnerabilities.

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