Cisco UCS B-Series Blade Servers

Cisco UCS CNA M73KR-Q QLogic Converged Network Adapter Data Sheet

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Product Overview

The Cisco UCS CNA M73KR-Q QLogic Converged Network Adapter (CNA; Figure 1) is a QLogic-based Fibre Channel over Ethernet (FCoE) mezzanine card that provides connectivity for Cisco UCS B-Series Blade Servers in the Cisco Unified Computing System (Cisco UCS).

Designed specifically for the Cisco UCS blades, the adapter provides high-performance connectivity for SAN and LAN traffic. One Cisco UCS CNA M73KR-Q can do the work of a discrete Fibre Channel host bus adapter (HBA) and Ethernet network interface card (NIC). This convergence means fewer cables, fewer switches, less power consumption, reduced cooling, and unified LAN and SAN management.

Figure 1.      Cisco UCS CNA M73KR-Q QLogic Converged Network Adapter

Features and Benefits

The Cisco UCS CNA M73KR-Q provides both 10 Gigabit Ethernet and 8-Gbps Fibre Channel functions using drivers from QLogic:

   Risk mitigation through compatibility with current QLogic adapter-based SAN environments and drivers

   Full hardware offload for FCoE protocol processing, reducing system CPU utilization for I/O operations and leading to faster application performance and greater consolidation in virtualized systems

   Reduced total cost of ownership (TCO) through consolidation of LAN and SAN traffic over the same mezzanine card and fabric, reducing the overall number of NICs), HBAs, cables, and switches

   Integrated management with Cisco UCS Manager

Figure 2 shows the Cisco UCS CNA M73KR-Q architecture.

Figure 2.      Cisco UCS CNA M73KR-Q QLogic Converged Network Adapter Architecture

Table 1 summarizes the features and benefits of the Cisco UCS CNA M73KR-Q.

Table 1.       Features & Benefits



QLogic Fibre Channel controller application-specific integrated circuits (ASICs)

Allows customers to use existing QLogic HBA software and drivers for storage

Unified I/O

  Supports three simultaneous protocols: TCP/IP networking, FCoE, and Small Computer System Interface over IP (iSCSI)
  Helps reduce TCO by consolidating the overall number of NICs, HBAs, cables, and switches because LAN and SAN traffic run over the same mezzanine card and fabric

Network architecture

Provides redundant path to fabric interconnect using dual 10 Gigabit Ethernet ports to the fabric carrying both Fibre Channel and Ethernet traffic

Unified management

Through Cisco UCS Manager, supports automatic updates of Qlogic firmware and drivers.

Support for lossless Ethernet

  Uses Priority Flow Control (PFC) and IEEE 802.3x pause to enable FCoE as part of the Cisco unified fabric
  Increases storage networking performance by eliminating retry and resend operations in congested fabrics

Product Specifications

Table 2 summarizes the features and benefits of the Cisco UCS CNA M73KR-Q.

Table 2.       Product Specifications




  IEEE 802.3ae (10-Gbps Ethernet), 802.1q(VLAN), 802.3ad (Link Aggregation), 802.1p (Priority Encoding), 802.3x (Flow Control), 802.3ap (KX/KX4), and 1149.1 (JTAG)
  IPV4 Specification (RFC 791), IPV6 Specification (RFC 2460),TCP/UDP Specification (RFC 793 and 768), and Address Resolution Protocol (ARP) Specification (RFC 826)
  SCSI-3 Fibre Channel Protocol (SCSI-FCP-2), Second-Generation Fibre Channel Generic Services (FC‑GS-2), Third-Generation Fibre Channel Generic Services (FC-GS-3), and FCoE and FCoE Initialization Protocol (FIP; FC-BB-5)
  Priority-Based Flow Control (IEEE 802.1Qbb), Enhanced Transmission Selection (IEEE 802.1Qaz), Congestion Notification (IEEE 802.1Qau), and Data Center Bridging Exchange (DCBX) Protocol (IEEE 802.1Qaz)


QLogic 3G CNA ASIC (Cisco UCS certified)


2x 10 Gigabit Ethernet and mezzanine connectors


1000BASE-BX and Cisco UCS midplane

FCoE performance

Single port: 250,000 I/O operations per second (IOPS; estimate)

Dual port: 450,000 IOPS (estimate)

Network management

Cisco UCS Manager Release 1.3.1 or later

Physical dimensions

  Length: 5.3 in. (13.5 cm)
  Width: 3.5 in. (8.9 cm)

Power dissipation

14.36 watts (typical)

Inlet operating temperature range

50 to 90°F (10 to 35°C)

System Requirements

The Cisco UCS CNA M73KR-Q mezzanine card is designed for use only on Cisco UCS B-Series Blade Servers. Each half-width server, including the Cisco UCS B200 M3 Blade Servers supports one mezzanine adapter. The adapter is not designed or intended for other purposes.

Warranty Information

Find warranty information at on the Product Warranties page.

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