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Updated:May 13, 2019
Document ID:1555462915938699

Available Languages

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  • PDF
    (660.5 KB)
    View with Adobe Reader on a variety of devices
Updated:May 13, 2019
Document ID:1555462915938699


Product Overview

The Cisco Nexus® 9300-FX2 Series switches belongs to the fixed Cisco Nexus 9000 platform based on Cisco Cloud Scale technology. The platform support cost-effective cloud-scale deployments, an increased number of endpoints, and cloud services with wire-rate security and telemetry. The platform is built on modern system architecture designed to provide high performance and meet the evolving needs of highly scalable data centers and growing enterprises.

Cisco Nexus 9300-FX2 series is an extension of Nexus 9300-FX series switches with higher bandwidth capacity. The switches offer a variety of interface options to transparently migrate existing data centers from 1-Gbps, and 10-Gbps speeds to 25- Gbps at the server, and from 10- and 40-Gbps speeds to 50- and 100- Gbps at the aggregation layer. The platforms provide investment protection for customers, delivering large buffers, highly flexible Layer 2 and Layer 3 scalability, and performance to meet the changing needs of virtualized data centers and automated cloud environments.

Cisco provides two modes of operation for Cisco Nexus 9000 Series Switches. Organizations can use Cisco NX-OS Software to deploy the switches in standard Cisco Nexus switch environments (NX-OS mode). Organizations can also deploy the infrastructure that is ready to support the Cisco Application Centric Infrastructure (Cisco ACI) platform to take full advantage of an automated, policy-based, systems-management approach (ACI mode).

Switch Models

Table 1.             Cisco Nexus 9300-FX2 Series Switches



Cisco Nexus 9336C-FX2

36 x 40/100-Gbps QSFP28 ports

Cisco Nexus 93240YC-FX2

48 x 1/10/25-Gbps fiber ports and 12 x 40/100-Gbps QSFP28 ports

The Cisco Nexus 9336C-FX2 Switch (Figure 1) is a 1RU switch that supports 7.2 Tbps of bandwidth and over 2.8 bpps. The switch can be configured to work as 1/10/25/40/100-Gbps offering flexible options in a compact form factor. All ports support wire-rate MACsec encryption[1] and Cloudsec encryption. Breakout is supported on all ports. Please see feature table below for more information.


Figure 1.           

Cisco Nexus 9336C-FX2 Switch

The Cisco Nexus 93240YC-FX2 Switch (Figure 2) supports 4.8 Tbps of bandwidth and over 1.8 bpps. The 48 ports of downlinks support 1/10/25-Gbps. The 12 uplinks ports can be configured as 40- and 100-Gbps ports, offering flexible migration options. The switch is ideal for a non-oversubscribed solution in a compact form factor. The switch has FC-FEC and RS-FEC enabled for 25Gbps support over longer distances.


Figure 2.           

Cisco Nexus 93240YC-FX2 Switch

Features and Benefits

The Cisco Nexus 9300-FX2 series provide the following features and benefits:

     Architectural Flexibility

     Industry leading Software Defined Networking Solution Cisco ACIsupport

     Support for standards based VXLAN EVPN fabrics, inclusive of hierarchical multi-site support (refer to VXLAN Network with MP-BGP EVPN Control Plane for more information)

     Three-tier BGP architectures, enabling horizontal, non-blocking IPv6 network fabrics at web-scale

     Segment routing allows the network to forward Multiprotocol Label Switching (MPLS) packets and engineer traffic without Resource Reservation Protocol (RSVP) Traffic Engineering (TE). It provides a control-plane alternative for increased network scalability and virtualization

     Comprehensive protocol support for Layer 3 (v4/v6) unicast and multicast routing protocol suites, including BGP, Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Routing Information Protocol Version 2 (RIPv2), Protocol Independent Multicast Sparse Mode (PIM-SM), Source-Specific Multicast (SSM), and Multicast Source Discovery Protocol (MSDP)

     Extensive Programmability

     Day zero automation through Power On Auto Provisioning, drastically reducing provisioning time

     Industry leading integrations for leading devops configuration management applications – Ansible, Chef, Puppet, SALT. Extensive Native YANG and industry standard OpenConfig model support through RESTCONF/NETCONF

     Pervasive API’s for all switch CLI functions (JSON based RPC over HTTP/HTTPs)

     High Scalability, flexibility, and security

     Flexible forwarding tables support up to 1 million shared entries on FX2 models. Flexible use of TCAM space allows for custom definition of Access Control List (ACL) templates.

     IEEE 802.1ae MAC Security (MACsec) and Cloudsec (VTEP to VTEP encryption) support on all ports of 9300-FX2 models with speed greater than or equal to 1-Gbps, allows traffic encryption at the physical layer and provides secure server, border leaf, and leaf-to-spine connectivity.

     Intelligent Buffer Management

     The platform offers Cisco’s innovative intelligent buffer management, that offers capability to distinguish mice and elephant flows and apply different queue management schemes to them based on their network forwarding requirements in the event of link congestion.

     Intelligent buffer management functions are:

     Approximate Fair Dropping (AFD) with Elephant trap (ETRAP). AFD distinguishes long-lived elephant flows from short-lived mice flows, by using ETRAP. AFD exempts mice flows from the dropping algorithm so that mice flows will get their fair share of bandwidth without being starved by bandwidth-hungry elephant flows. Also, AFD tracks elephant flows and subjects them to the AFD algorithm in the egress queue to grant them their fair share of bandwidth.

     ETRAP measures the byte counts of incoming flows and compares this against the user defined ETRAP threshold. After a flow crosses the threshold, it becomes an elephant flow.

     Dynamic Packet Prioritization (DPP) provides the capability of separating mice flows and elephant flows into two different queues so that buffer space can be allocated to them independently. Mice flows, sensitive to congestion and latency can take priority queue and avoid re-ordering that allows to elephant flows to take full link bandwidth.

     RDME over Converged Ethernet – RoCE support

     Platform offers lossless transport for RDMA over Converged Ethernet with support of DCB protocols:

     Priority-based Flow Control – (PFC) to prevent drops in the network and pause frame propagation per priority class.

     Enhanced Transmission Selection – (ETS) to reserve bandwidth per priority class in network contention situation.

     Data Center Bridging Exchange Protocol – (DCBX) to discover and exchange priority and bandwidth information with end points.

     Platform also supports Explicit Congestion Notification – (ECN) that provides end-to-end notification per IP flow by marking packets that experienced congestion, without dropping traffic. The platform is capable to track ECN statistics of number of marked packet that have experienced congestion.

     LAN and SAN Convergence

     Fibre Channel[2] and Fibre Channel over Ethernet (FCoE) N-Port Virtualization (NPV) support enables the network administrator to control domain IDs and points of management on a Fibre Channel network as it scales. This feature enables LAN and SAN converged networks on a lossless, reliable Ethernet network.

   Hardware and software high availability

     Virtual Port-Channel (vPC) technology provides Layer 2 multipathing through the elimination of Spanning Tree Protocol. It also enables fully utilized bisectional bandwidth and simplified Layer 2 logical topologies without the need to change the existing management and deployment models.

     The 64-way Equal-Cost MultiPath (ECMP) routing enables the use of Layer 3 fat-tree designs. This feature helps organizations prevent network bottlenecks, increase resiliency, and add capacity with little network disruption.

     Advanced reboot capabilities include hot and cold patching.

     The switches use hot-swappable Power-Supply Units (PSUs) and fans with N+1 redundancy.

   Purpose-built Cisco NX-OS Software operating system with comprehensive, proven innovations

     Single binary image that supports every switch in the Cisco Nexus 9000 series, simplifying image management. The operating system is modular, with a dedicated process for each routing protocol: a design that isolates faults while increasing availability. In the event of a process failure, the process can be restarted without loss of state. The operating system supports hot and cold patching and online diagnostics.

     Data Center Network Manager (DCNM) is the network management platform for all NX-OS-enabled deployments, spanning new fabric architectures, IP Fabric for Media, and storage networking deployments for the Cisco Nexus®-powered data center. Accelerate provisioning from days to minutes, and simplify deployments from day zero through day N. Reduce troubleshooting cycles with graphical operational visibility for topology, network fabric, and infrastructure. Eliminate configuration errors and automate ongoing change in a closed loop, with templated deployment models and configuration compliance alerting with automatic remediation. Real-time health summary for fabric, devices, and topology. Correlated visibility for fabric (underlay, overlay, virtual and physical endpoints), including compute visualization with VMware. 

     Network traffic monitoring with Cisco Nexus Data Broker builds simple, scalable, and cost-effective network Test Access Points (TAPs) and Cisco Switched Port Analyzer (SPAN) aggregation for network traffic monitoring and analysis.

   Cisco Tetration Analytics platform support

     The telemetry information from the Nexus 9300 Series switches is exported every 100 milliseconds by default directly from the switch’s Application-Specific Integrated Circuit (ASIC). This information consists of three types of data: (a) Flow information, this information contains information about endpoints, protocols, ports, when the flow started, how long the flow was active, etc. (b) Inter-packet variation, this information captures any inter-packet variations within the flow. Examples include variation in Time To Live (TTL), IP and TCP flags, payload length, etc. (c) Context details, context information is derived outside the packet header, including variation in buffer utilization, packet drops within a flow,association with tunnel endpoints, etc.

     The Cisco Tetration Analytics platform consumes this telemetry data, and by using unsupervised machine learning and behavior analysis it can provide outstanding pervasive visibility across everything in your data center in real time. By using algorithmic approaches, the Cisco Tetration Analytics platform provides a deep application insights and interactions, enabling dramatically simplified operations, a zero-trust model, and migration of applications to any programmable infrastructure. To learn more, go to https://www.cisco.com/go/tetration.

   Cisco Network Assurance Engine (NAE)

     Cisco NAE continuously verifies if the network infrastructure is operating as per policy intent and it leverages the power of mathematical models to reason on behalf of the operator in policy, configuration and dynamic state level. NAE can precisely indicate problems in the network, identify which application or part of network is impacted, root-cause the problem and suggest how to fix it. Its continuous verification approach transforms Day 2 Operations from reactive to proactive mode and it does so without using any packet data. NAE helps avoid outages by predicting the impact of changes, reducing network related IT incidents and shrinking the mean time to repair by up to 66%. NAE also helps assure network security and segmentation compliance. To learn more about NAE, visit https://www.cisco.com/c/en/us/products/data-center-analytics/network-assurance-engine/index.html.

Product Specifications

The Cisco Nexus 9300-FX2 series offer industry-leading density and performance with flexible port configurations that can support existing copper and fiber cabling (Tables 2).

Table 2.             Cisco Nexus 9300-FX2 Series Switch Specifications


Cisco Nexus 9336C-FX2

Cisco Nexus 93240YC-FX2


36 x 40/100-Gbps QSFP28 ports

48 x 1/10/25-Gbps and 12 x 40/100-Gbps QSFP28 ports

Supported speeds

1/10/25/40/100-Gbps Ethernet

Breakout supported on all ports, 1-36:

100G, 40G native, 4x10/25G (10G w/QSA)

1G w/QSA except ports 1-6 and 33-36

1/10/25-Gbps on downlinks

40/100-Gbps on uplinks


4 cores

4 cores

System memory

24 GB

16 GB

SSD drive

128 GB

128 GB

System buffer

40 MB

40 MB

Management ports

2 ports: 1 RJ-45 and 1 SFP+

2 ports: 1 RJ-45 and 1 SFP+

USB ports



RS-232 serial ports



Power supplies (up to 2)

1100W AC, 1100W DC, 1100W HVAC/HVDC

1100W AC, 1100W DC, 1100W HVAC/HVDC

Typical power (AC)



Maximum power (AC)



Input voltage (AC)

100 to 240V

100 to 240V

Input voltage (high-voltage AC [HVAC])

100 to 277V

100 to 277V

Input voltage (DC)

–40 to –72V

–40 to –72V

Input voltage (high-voltage DC [HVDC])

–240 to –380V

–240 to –380V

Frequency (AC)

50 to 60 Hz

50 to 60 Hz


3 dual fan trays



Port-side intake and exhaust

Port-side intake and exhaust

Physical dimensions
(H x W x D)

1.72 x 17.3 x 24.5 in.
(4.4 x 43.9 x 62.3 cm)

2.1 x 17.3 x 23.3 in.
(5.3 x 43.9 x 59.1 cm)


76.2 dBA at 50% fan speed, 85.3 dBA at 70% fan speed, and 92.3 dBA at 100% fan speed

76.4 dBA at 50% fan speed, 83.3 dBA at 70% fan speed, and 92.1 dBA at 100% fan speed

RoHS compliance




352,590 hours

365,610 hours

Minimum ACI image



Minimum NX-OS image



* Typical and maximum power values are based on input drawn from the power circuit. The power supply value (for example, 1100W AC power supply: NXA-PAC-1100W-PI) is based on the output rating to the inside of the switch.

Table 3 lists the performance and scalability specifications for the Cisco Nexus 9300-FX2 series switches. (Check the software release notes for feature support information.)

Table 3.             Hardware Performance and Scalability Specifications*


Cisco Nexus 9300-FX2 Series Switches

Maximum number of Longest Prefix Match (LPM) routes**


Maximum number of IP host entries**


Maximum number of MAC address entries**


Maximum number of multicast routes


Number of Interior Gateway Management Protocol (IGMP) snooping groups

Shipping: 8,000

Maximum: 32,000

Maximum number of Cisco Nexus 2000 Series Fabric Extenders per switch


Maximum number of Access Control List (ACL) entries

Per slice of the forwarding engine:

5000 ingress

2000 egress

Maximum number of VLANs


Number of Virtual Routing and Forwarding (VRF) instances

Shipping: 1,000

Maximum: 16,000

Maximum number of ECMP paths


Maximum number of port channels


Maximum number of links in a port channel


Number of active SPAN sessions


Maximum number of VLAN’s in Rapid per-VLAN Spanning Tree (RPVST) instances


Maximum number of Hot-Standby Router Protocol (HSRP) groups


Number of Network Address Translation (NAT) entries


Maximum number of Multiple Spanning Tree (MST) instances


Flow-table size used for Cisco Tetration Analytics platform***


* More templates and greater scalability are on the roadmap. Refer to the Cisco Nexus 9000 Series Verified Scalability Guide documentation for the latest exact scalability values validated for specific software.
** Raw capacity of flow table.

Table 4 lists the environmental properties, and Table 5 lists the weight for the Cisco Nexus 9300-FX2 series switches.

Table 4.             Environmental Properties



Operating temperature

32 to 104°F (0 to 40°C)

Nonoperating (storage) temperature

–40 to 158°F (–40 to 70°C)


5 to 95% (noncondensing)


0 to 13,123 ft (0 to 4000m)

Table 5.         Weight



Cisco Nexus 9336C-FX2 without power supplies or fans

18.8 lb (8.5 kg)

Cisco Nexus 93240YC-FX2 without power supplies or fans


1100W AC power supply

2.42 lb (1.1 kg)

1100W DC power supply


1100W HVAC/HVDC power supply


Fan tray: NXA-FAN-65CFM-F or NXA-FAN-65CFM-B

0.6 lb (0.3 kg)

Fan tray: NXA-FAN-35CFM-PE or NXA-FAN-35CFM-PI

0.25 lb (0.1 kg)

Table 6 summarizes regulatory standards compliance for the Cisco Nexus 9300-FX2 series switches.

Table 6.            Regulatory Standards Compliance: Safety and EMC



Regulatory compliance

Products should comply with CE Markings according to directives 2004/108/EC and 2006/95/EC



  UL 60950-1 Second Edition
  CAN/CSA-C22.2 No. 60950-1 Second Edition
  EN 60950-1 Second Edition
  IEC 60950-1 Second Edition
  AS/NZS 60950-1

EMC: Emissions

  47CFR Part 15 (CFR 47) Class A
  AS/NZS CISPR22 Class A
  CISPR22 Class A
  EN55022 Class A
  ICES003 Class A
  VCCI Class A
  KN22 Class A
  CNS13438 Class A

EMC: Immunity

  KN 61000-4 series


The product is RoHS-6 compliant with exceptions for leaded-ball grid-array (BGA) balls and lead press-fit connectors.

Software Licensing and Optics Supported

The software packaging for the Cisco Nexus 9000 Series offers flexibility and a comprehensive feature set. The default system software has a comprehensive Layer 2 security and management feature set. To enable additional functions, including Layer 3 IP unicast and IP multicast routing and Cisco Nexus Data Broker, you must install additional licenses. To meet customer requirements, licensing is available as both subscription and perpetual. The licensing guide illustrates the software packaging and licensing available to enable advanced features. For the latest software release information and recommendations, refer to the product bulletin at https://www.cisco.com/go/nexus9000.

For details about the optics modules available and the minimum software release required for each supported module, visit https://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html.

Ordering Information

Table 7 presents ordering information for the Cisco Nexus 9300-FX series switches.

Table 7.             Ordering Information

Part Number

Product Description

Base Part Numbers


Nexus 9K Fixed with 36p 40G/100G QSFP28


Nexus 9K Fixed with 48p 1/10G/25G SFP and 12p 40G/100G QSFP28

Power Supplies on Nexus 9300-FX2 series


Nexus 9000 1100W AC PS, Port-side Intake


Nexus 9000 1100W AC PS, Port-side Exhaust


Nexus 9000 1100W DC PS, Port-side Intake


Nexus 9000 1100W DC PS, Port-side Exhaust


Nexus 1100W Platinum HV-AC-DC PS, Port-side Intake


Nexus 1100W Platinum HV-AC-DC PS, Port-side Exhaust

Fans on Nexus 9300-FX2 Series


Nexus Single Fan, 35CFM, port side exhaust airflow; supported on Nexus 93240YC-FX2


Nexus Single Fan, 35CFM, port side intake airflow; supported on Nexus 93240YC-FX2


Nexus Dual Fan, 65CFM, port side exhaust airflow; supported on Nexus 9336C-FX2


Nexus Dual Fan, 65CFM, port side intake airflow; supported on Nexus 9336C-FX2

Licenses on Nexus 9300-FX2 Series


ACI & NX-OS Subscription Essential package for 10/25/40G+ Nexus 9K Leaf, 3 Year Term


ACI & NX-OS Subscription Essential package for 10/25/40G+ Nexus 9K Leaf, 5 Year Term


ACI & NX-OS Subscription Advantage package for 10/25/40G+ Nexus 9K Leaf, 3 Year Term


ACI & NX-OS Subscription Advantage package for 10/25/40G+ Nexus 9K Leaf, 5 Year Term


ACI Essential SW license for a 10/25/40G+ Nexus 9K Leaf


ACI Advantage SW license for a 10/25/40G+ Nexus 9K Leaf


NX-OS Essential SW license for a 10/25/40G+ Nexus 9K Leaf


NX-OS Advantage SW license for a 10/25/40G+ Nexus 9K Leaf

Power Cords


AC Power Cord - 250V, 10A - Argentina (2.5 meter)


AC Power Cord - 250V, 10A - Brazil (2.1 meter)


AC Power Cord - 250V, 10A - PRC (2.5 meter)


AC Power Cord - 250V, 10A, South Africa (2.5 meter)


AC Power Cord - 250V, 10A - Israel (2.5 meter)


Power Cord, 250VAC 10A 3112 Plug, Australia (2.5 meter)


Power Cord, 250VAC 10A CEE 7/7 Plug, EU (2.5 meter)


Power Cord, 250VAC 10A CEI 23-16/VII Plug, Italy (2.5 meter)


Power Cord, 250VAC 10A MP232 Plug, SWITZ (2.5 meter)


Power Cord, 250VAC 10A BS1363 Plug (13 A fuse), UK (2.5 meter)


Power Cord, 125VAC 13A NEMA 5-15 Plug, North America (2.5 meter)


North America, NEMA L6-20-C13 (2.0 meter)


Power Cord Jumper, C13-C14 Connectors, 2 Meter Length (2 meter)


Power cord, C13 to C14 (recessed receptacle), 10A (3 meter)


Cabinet Jumper Power Cord, 250 VAC 10A, C14-C13 Connectors (0.7 meter)


10A Power cable for India (2.5 meter)


Power Cord, 200/240V 6A North America (2.5 meter)


HVAC Power cable for Anderson-LS-25


HVAC power cable for C14, 2 meters (no more than 240 V)


HVAC Power cable with right angle connector for RF-LS-25

Accessories on Nexus 9300-FX2 Series


Nexus Fixed Accessory Kit with 4-post rack mount kit

Warranty, Service and Support

The Cisco Nexus 9300-FX2 series has a 1-year limited hardware warranty. The warranty includes hardware replacement with a 10-day turnaround from receipt of a Return Materials Authorization (RMA).

Cisco offers a range of professional, solution, and product support services for each stage of your Cisco Nexus 9300-FX2 series deployment:

     Cisco Data Center Quick Start Service for Cisco Nexus 9000 Series Switches: This offering provides consulting services that include technical advice and assistance to help deploy Cisco Nexus 9000 Series Switches.

     Cisco Data Center Accelerated Deployment Service for Cisco Nexus 9000 Series Switches: This service delivers planning, design, and implementation expertise to bring your project into production. The service also provides recommended next steps, an architectural high-level design, and operation-readiness guidelines to scale the implementation to your environment.

     Cisco Migration Service for Cisco Nexus 9000 Series Switches: This service helps you migrate from Cisco Catalyst® 6000 Series Switches to Cisco Nexus 9000 Series Switches.

     Cisco Product Support: Support service is available globally 24 hours a day, 7 days a week, for Cisco software and hardware products and technologies associated with Cisco Nexus 9000 Series Switches. Enhanced support options delivered by Cisco also include solution support for Cisco ACI, Cisco SMARTnet Service, and Cisco Smart Net Total Care™* service.

For more information, visit https://www.cisco.com/go/services.

* For Cisco products only.

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For More Information

For more information about the Cisco Nexus 9000 Series and latest software release information and recommendations, visit https://www.cisco.com/go/nexus9000.

[1] Capabilities to enable MACsec and Cloudsec is on the software roadmap
[2] Capabilities to enable FC switch mode is on software roadmap

Learn more