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Data SheetCisco Nexus 3548x and 3524x SwitchesCisco Nexus 3000 Series Switches OverviewThe Cisco Nexus 3000 Series Switches are a comprehensive portfolio of 1, 10, and 40 Gigabit Ethernet switchesbuilt from a switch-on-a-chip (SoC) architecture. Introduced in April 2011, this series of switches provides line-rateLayer 2 and 3 performance and is suitable for top-of-the-rack (ToR) architecture. This series of switches hasestablished itself as a leader in high-frequency trading (HFT), high-performance computing (HPC), and big dataenvironments by pairing high performance and low latency with innovations in performance visibility, automation,and time synchronization.Cisco Nexus 3500 Platform OverviewThe Cisco Nexus 3500 platform further extends the leadership of the Cisco Nexus 3000 Series by including theinnovative Cisco Algorithm Boost (or Algo Boost) technology. Algo Boost technology, built into the switchapplication-specific integrated circuit (ASIC), allows the Cisco Nexus 3500 platform to achieve exceptional Layer 2and 3 switching latencies of less than 200 nanoseconds (ns). In addition, Algo Boost offers several innovations inlatency, forwarding, and performance visibility capabilities: Three configurable modes for low latency Normal mode: This mode is excellent for environments needing low latency and high scalability. In thismode, latencies as low as 250 ns can be paired with the higher of the Layer 2 and 3 scaling values listedlater in this document, in Table 6 and 7. Warp mode: For those customers with smaller environments who demand the lowest latencies possible,warp mode consolidates forwarding operations within the switch ASIC, lowering latency by up to anadditional 20 percent compared to normal operation. In this mode, latencies as low as 190 ns can bepaired with the smaller of the Layer 2 and 3 scaling values listed later in this document, in Table 6 and 7. Warp SPAN: In some environments, a stream of traffic entering one port simply needs to be copied to alist of outgoing ports as quickly as possible without processing or modification. The Cisco Nexus 3500platform’s warp SPAN capability allows all traffic entering a single port on the switch to be replicated toany number of destination ports at latencies as low as 50 ns. Hitless Network Address Translation (NAT): In many financial trading environments, trade orders must besourced from the IP space of the provider, requiring NAT at the border between networks. The Cisco Nexus3500 platform can perform NAT for IPv4 unicast routed packets without incurring any additional latency. TheCisco Nexus 3548x and 3524x introduce multicast NAT to the platform’s capability. Customers hosting colocations will find this feature useful in simplifying their network topologies and concealing details of theirdata centers. Latency monitoring: When nanoseconds matter, switch latency monitoring is essential to your company’sprofitability. The Cisco Nexus 3548x and 3524x enable users to finely control their environments to increasenetwork performance. Customers can identify latency on a specific egress port through the command-lineinterface (CLI) and export this information to a file. The programmability of the Cisco Nexus 3548x allowsusers to use this information in real time. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 1 of 15

Active buffer monitoring: Even on the lowest-latency switches, data packets can incur a millisecond or moreof latency during periods of congestion. Today’s switches do not adequately inform administrators about thepresence of this congestion, leaving them unaware and hindered in their ability to address the conditionscausing suboptimal performance. Previous buffer utilization monitoring techniques were based entirely onsoftware polling algorithms with polling intervals higher than 100 ms, which can miss important congestionevents. In contrast, Algo Boost accelerates the collection of buffer utilization data in hardware, allowingsampling intervals of 10 ns or less. Advanced traffic mirroring: The Algo Boost technology on the Cisco Nexus 3500 platform facilitates not onlynetwork troubleshooting by supporting Cisco Switched Port Analyzer (SPAN) and Encapsulated RemoteSPAN (ERSPAN) technologies, but also in-service network monitoring with enhancements including thecapability to: Apply user-configurable filters to reduce the amount of captured traffic to a specified flow or protocol Capture a sample of eligible packets, such as one out of every thousand Truncate packets after a user-defined threshold Insert a nanosecond-level timestamp in the ERSPAN header of captured packets (requires ERSPAN andPrecision Time Protocol [PTP]) IEEE 1588 PTP with pulse-per-second (PPS) output* The capability to build and maintain a synchronized, accurate timing solution is the basis for successfulprovisioning and management of HFT networks and applications. Using IEEE 1588 PTP, Cisco Nexus3000 Series Switches can deliver highly accurate precision time synchronization to applications withinexisting network infrastructure with no need to invest in and deploy a separate timing network. Network administrators deploying IEEE 1588 PTP often find it challenging to measure the accuracy towhich each device is synchronized. To assist in this effort, the Cisco Nexus 3500 platform includes a1-PPS output port that can be used to measure timing drift from the grandmaster clock. Network traffic monitoring with Cisco Nexus Data Broker Build simple, scalable and cost-effective network tap or SPAN aggregation for network traffic monitoringand analysis. With Cisco Nexus 3500 platform switches, you can: Truncate packets after a user-defined threshold at ingress Time-stamp packets using Precision Time Protocol (PTP) with nanosecond accuracyCisco Nexus 3548 and 3524 SwitchesThe Cisco Nexus 3548 and 3524 Switches (Figure 1) are based on identical hardware, differentiated only by theirsoftware licenses, which allow the Cisco Nexus 3524 to operate 24 ports, and enable the use of all 48 ports on theCisco Nexus 3548. These fixed switches are compact one-rack-unit (1RU) form-factor 10 Gigabit Ethernet switchesthat provide line-rate Layer 2 and 3 switching with ultra-low latency. Both software licenses run the industry-leadingCisco NX-OS Software operating system, providing customers with comprehensive features and functions that aredeployed globally. The Cisco Nexus 3548 and 3524 contain no physical layer (PHY) chips, allowing low latencyand low power consumption. These switches support both forward and reversed airflow schemes and both AC andDC power inputs. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 2 of 15

Figure 1.Cisco Nexus 3548 and 3524 SwitchThe Cisco Nexus 3548 and 3524 have the following hardware configuration: 48 fixed Enhanced Small Form-Factor Pluggable (SFP ) ports (1 or 10 Gbps); the Cisco Nexus 3524enables only 24 ports Dual redundant hot-swappable power supplies Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3 QuickConnect connector type* Two 10/100/1000 management ports1 One RS-232 serial console port One USB port Locator LED Locator LED buttonSupport for both port-side exhaust and port-side intake airflow schemes is available. Port-side exhaust airflow isuseful when the port side of the switch sits on a hot aisle and the power supply side sits on a cold aisle. Port-sideintake airflow is useful when the power supply side of the switch sits on a hot aisle and the port side sits on a coldaisle.Colored handles on each fan or power supply clearly indicate the airflow direction, as seen in Figures 2 and 3.Figure 2.Cisco Nexus 3548 and 3524 with Blue Handles Indicating Port-side Exhaust AirflowFigure 3.Cisco Nexus 3548 and 3524 with Red Handles Indicating Port-side Intake AirflowCisco Nexus 3548x and 3524x SwitchesThe Cisco Nexus 3548x and 3524x Switches (Figure 4) are the next generation of the Cisco Nexus 3500 platform.Like the previous generation, these switches are compact 1RU form-factor 10 Gigabit Ethernet switches andprovide line-rate Layer 2 and 3 switching with ultra-low latency. In addition, they consume 25% less power. Thisnew generation introduces powerful hardware-based multicast NAT and latency monitoring capabilities and asecond USB port for easier manageability.1 *Only one Management port is enabled and active with no plan to enable both. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 3 of 15

Figure 4.Cisco Nexus 3548x and 3524x SwitchesThe Cisco Nexus 3548x and 3524x have the following hardware configuration: 48 fixed SFP ports (1 or 10 Gbps); the Cisco Nexus 3524x enables only 24 ports Dual redundant hot-swappable power supplies Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3 QuickConnect connector type* One 10/100/1000 management port One RS-232 serial console port Two USB ports Locator LED Locator LED buttonSupport for both port-side exhaust and port-side intake airflow schemes is available. Port-side exhaust airflow isuseful when the port side of the switch sits on a hot aisle and the power supply side sits on a cold aisle. Port-sideintake airflow is useful when the power supply side of the switch sits on a hot aisle and the port side sits on a coldaisle.Colored handles on each fan or power supply clearly indicate the airflow direction, as seen in Figures 5 and 6.Figure 5.Cisco Nexus 3548x and 3524x with Blue Handles Indicating Port-side Exhaust AirflowFigure 6.Cisco Nexus 3548x and 3524x with Red Handles Indicating Port-side Intake AirflowCisco NX-OS Software OverviewCisco NX-OS is a data center-class operating system built with modularity, resiliency, and serviceability at itsfoundation. Cisco NX-OS helps ensure continuous availability and sets the standard for mission-critical data centerenvironments. The self-healing and highly modular design of Cisco NX-OS makes zero-impact operations a realityand provides exceptional operational flexibility.Focused on the requirements of the data center, Cisco NX-OS provides a robust and comprehensive feature setthat meets the networking requirements of present and future data centers. With an XML interface and acommand-line interface (CLI) like that of Cisco IOS Software, Cisco NX-OS provides state-of-the-artimplementations of relevant networking standards as well as a variety of true data center-class Cisco innovations. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 4 of 15

Cisco NX-OS Software BenefitsTable 1 summarizes the benefits that Cisco NX-OS Software offers.Table 1.Benefits of Cisco NX-OS SoftwareFeatureBenefitCommon software throughout the data center: Cisco NX-OS runs on all Cisco datacenter switch platforms (Cisco Nexus 7000, 5000, 4000, and 1000V Series Switchesand Cisco Nexus 2000 Series Fabric Extenders). Simplification of data center operatingenvironment End-to-end Cisco Nexus and Cisco NX-OSfabric No retraining necessary for data centerengineering and operations teamsSoftware compatibility: Cisco NX-OS interoperates with Cisco products running anyvariant of Cisco IOS Software and also with any networking OS that conforms to thenetworking standards listed as supported in this data sheet. Transparent operation with existing networkinfrastructure Open standards No compatibility concernsModular software design: Cisco NX-OS is designed to support distributedmultithreaded processing. Cisco NX-OS modular processes are instantiated ondemand, each in a separate protected memory space. Thus, processes are startedand system resources allocated only when a feature is enabled. The modularprocesses are governed by a real-time preemptive scheduler that helps ensure timelyprocessing of critical functions. Robust software Fault toleranceTroubleshooting and diagnostics: Cisco NX-OS is built with unique serviceabilityfunctions to allow network operators to take early action based on network trendsand events, enhancing network planning and improving network operations center(NOC) and vendor response times. Cisco Smart Call Home and Cisco Online HealthManagement System (OHMS) are some of the features that enhance the serviceabilityof Cisco NX-OS. Quick problem isolation and resolution Continuous system monitoring and proactivenotifications Improved productivity of operations teamsEase of management: Cisco NX-OS provides a programmatic XML interface based onthe NETCONF industry standard. The Cisco NX-OS XML interface provides aconsistent API for devices. Cisco NX-OS also provides support for Simple NetworkManagement Protocol (SNMP) Versions 1, 2, and 3 MIBs. Rapid development and creation of tools forenhanced management Comprehensive SNMP MIB support for efficientremote monitoringUsing the Cisco Nexus Data Broker software and Cisco Plug-in for OpenFlow agent,the Cisco Nexus 3500 platform can be used to build a scalable, cost-effective, andprogrammable tap or SPAN aggregation infrastructure. This approach replaces thetraditional purpose-built matrix switches with these switches. You can interconnectthese switches to build a multilayer topology for tap or SPAN aggregationinfrastructure. Scalable and cost effective Traffic aggregation from multiple input portsacross different switches Traffic replication and forwarding to multiplemonitoring tools Support for packet truncation and timestampingRole-based access control (RBAC): With RBAC, Cisco NX-OS enables administratorsto limit access to switch operations by assigning roles to users. Administrators cancustomize access and restrict it to only the users who require it. Effective access control mechanism based onuser roles Improved network device security Increased scalability Increased network availability Reduction in network problems arising fromhuman errorCisco NX-OS Software Packages for the Cisco Nexus 3500 PlatformThe software packages for the Cisco Nexus 3500 offer flexibility and a comprehensive feature set and areconsistent with Cisco Nexus access switches. The default system software has a comprehensive Layer 2 featureset with extensive security and management features. To enable certain Layer 3 IP unicast and multicast routingfunctions, NAT, warp mode, and warp SPAN, additional licenses must be installed, as described in Table 2. SeeTable 9 later in this document for a complete software feature list. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 5 of 15

Table 2.Software Licensing for Cisco Nexus 3500Software PackageFeatures SupportedSystem default(no license required) Comprehensive Layer 2 feature set: VLAN, IEEE 802.1Q trunking, Link Aggregation Control Protocol (LACP),Unidirectional Link Detection (UDLD; Standard and Aggressive), Multiple Spanning Tree Protocol (MSTP),Rapid Spanning Tree Protocol (RSTP), and Spanning Tree Protocol guard Security: Authentication, authorization, and accounting (AAA), access control lists (ACLs), storm control, andconfigurable Control-Plane Policing (CoPP) Management features: Cisco Data Center Network Manager (DCNM) support, Secure Shell Version 2 (SSHv2)access, Cisco Discovery Protocol, SNMP, syslog, and IEEE 1588 PTP Monitoring features: Advanced buffer monitoring, SPAN, and ERSPANBase license Layer 3 IP routing: Inter-VLAN routing (IVR), static routes, Routing Information Protocol Version 2 (RIPv2),ACLs, Open Shortest Path First Version 2 (OSPFv2; limited to 256 routes), Enhanced Interior Gateway RoutingProtocol (EIGRP) stub, Hot Standby Router Protocol (HSRP), and Virtual Router Redundancy Protocol (VRRP) Multicast: Protocol-Independent Multicast Sparse Mode (PIM-SM), Source-Specific Multicast (SSM), andMulticast Source Discovery Protocol (MSDP)LAN Enterprise license(N3K-LAN1K9); requiresBase license Advanced Layer 3 IP routing: OSPFv2, EIGRP, Border Gateway Protocol (BGP), and Virtual Routing andForwarding Lite (VRF-Lite)Algo Boost license(N3K-ALGK9) Algo Boost features: NAT, warp mode, and warp SPANCisco Nexus Data Brokerlicense (NDB-FX-SWT-K9) License for using the tap and SPAN aggregation functions with Cisco Nexus Data Broker; only the Base licenseis needed for this featureN3548-24P-UPG Cisco Nexus 3524 24-Port Upgrade LicenseL-N3548-24P-UPG Cisco Nexus 3524 24-Port Upgrade License (e-delivery)Cisco Data Center Network ManagerThe Cisco Nexus 3500 platform is supported in Cisco DCNM. Cisco DCNM is designed for the Cisco Nexushardware platforms, which are enabled for Cisco NX-OS. Cisco DCNM is a Cisco management solution thatincreases overall data center infrastructure uptime and reliability, improving business continuity. Focused on themanagement requirements of the data center network, Cisco DCNM provides a robust framework andcomprehensive feature set that can meet the routing, switching, and storage administration needs of present andfuture data centers. Cisco DCNM automates the provisioning process, proactively monitors the LAN by detectingperformance degradation, secures the network, and simplifies the diagnosis of dysfunctional network elements.Cisco Nexus Data BrokerThe Cisco Nexus 3500 platform switches with Cisco Nexus Data Broker can be used to build a scalable and costeffective traffic monitoring infrastructure using network taps and SPAN. This approach replaces the traditionalpurpose-built matrix switches with one or more OpenFlow-enabled Cisco Nexus switches. You can interconnectthese switches to build a scalable tap or SPAN aggregation infrastructure. You also can combine tap and SPANsources to bring the copy of the production traffic to this tap or SPAN aggregation infrastructure. In addition, youcan distribute these sources and traffic monitoring and analysis tools across multiple Cisco Nexus switches. Formore details, visit r and Cabling OptionsThe Cisco Nexus 3500 platform supports a wide variety of 100 Megabit Ethernet and 1, 10, and 40 GigabitEthernet connectivity options. For in-rack or adjacent-rack cabling, the Cisco Nexus 3500 platform supports SFP direct-attach copper cabling, an innovative solution that integrates transceivers with Twinax cables into an energyefficient and low-cost solution. For longer cable runs, multimode and single-mode optical SFP transceivers aresupported. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 6 of 15

Table 3 lists the supported 40 Gigabit Ethernet transceiver options. 40 Gigabit Ethernet is achieved on the CiscoNexus 3500 platform by combining four sequential SFP interfaces into a logical 40 Gigabit Ethernet port. Theresulting interface is fully compliant with the IEEE standard for 40 Gigabit Ethernet and thus is interoperable withany other 40 Gigabit Ethernet device, regardless of interface form factor, including Quad SFP (QSFP).Table 3.Cisco Nexus 3500 Platform 40 Gigabit Transceiver Support MatrixPart NumberDescriptionSFP-10G-SR10GBASE-SR SFP module (multimode fiber [MMF])SFP-10G-LR10GBASE-LR SFP module (single-mode fiber [SMF])QSFP-4SFP10G-CU1MQSFP to 4 x SFP 10-Gbps passive copper splitter cable, 1m (Twinax cable)QSFP-4SFP10G-CU3MQSFP to 4 x SFP 10-Gbps passive copper splitter cable, 3m (Twinax cable)QSFP-4SFP10G-CU5MQSFP to 4 x SFP 10-Gbps passive copper splitter cable, 5m (Twinax cable)Table 4 lists the supported 10 Gigabit Ethernet transceiver options.Table 4.Cisco Nexus 3500 Platform 10 Gigabit Transceiver Support MatrixPart NumberDescriptionSFP-10G-SR10GBASE-SR SFP module (MMF)SFP-10G-LR10GBASE-LR SFP module (single-mode fiber [SMF])SFP-10G-ERCisco 10GBASE-ER SFP module for SMFDWDM-SFP10G-*10GBASE-DWDM modules (multiple varieties)SFP-H10GB-CU1M10GBASE-CU SFP cable, 1m (Twinax cable)SFP-H10GB-CU3M10GBASE-CU SFP cable, 3m (Twinax cable)SFP-H10GB-CU5M10GBASE-CU SFP cable, 5m (Twinax cable)SFP-H10GB-ACU7MActive Twinax cable assembly, 7mSFP-H10GB-ACU10MActive Twinax cable assembly, 10mThe Cisco Nexus 3500 platform is compatible with existing Gigabit Ethernet infrastructures. Both the uplink anddownlink 10 Gigabit Ethernet interfaces can also operate in 100 Megabit Ethernet and 1 Gigabit Ethernet modes.Table 5 lists the Gigabit Ethernet SFP transceivers that are supported. 100 Megabit Ethernet connectivity can beachieved by using copper-based SFP transceivers (GLC-T).Table 5.Cisco Nexus 3500 Platform Gigabit Ethernet Transceiver Support MatrixPart NumberDescriptionGLC-T1000BASE-T SFPGLC-SX-MMGE SFP, LC connector SX transceiver (MMF)GLC-SX-MMD1000BASE-SX SFP transceiver module, MMF, 850 nm, DOMGLC-LH-SMGE SFP, LC connector LX and LH transceiverGLC-LH-SMD1000BASE-LX/LH SFP transceiver module, MMF and SMF, 1310 nm, DOMFor more information about the transceiver types, ps5455/prod module series home.html. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 7 of 15

Product SpecificationsTable 6 lists the specifications for the Cisco Nexus 3548 and 3524 Switches, and Table 7 lists the specifications forthe Cisco Nexus 3548x and 3524x Switches. Table 8 lists hardware specifications common to all four switches,and Table 9 lists software features common to all four switches. Table 10 lists management standards and support.Table 6.Cisco Nexus 3548 and 3524 SpecificationsSpecificationCisco Nexus 3548 48 fixed SFP ports (1 or 10 Gbps) Dual redundant hot-swappable power suppliesPhysical Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3 QuickConnectconnector type* Two 10/100/1000-Mbps management ports One RS-232 serial console port One USB port Locator LED Locator LED button 24 fixed SFP ports (1 or 10 Gbps); expandable to48 ports Dual redundant hot-swappable power supplies Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3QuickConnect connector type* Two 10/100/1000-Mbps management ports One RS-232 serial console port One USB port Locator LED Locator LED button 960-Gbps switching capacity Forwarding rate of 720 million packets per second (mpps) 480-Gbps switching capacity Forwarding rate of 360 mpps Line-rate traffic throughput (both Layer 2 and 3) on all ports Configurable maximum transmission units (MTUs) of up to9216 bytes (jumbo frames) Line-rate traffic throughput (both Layer 2 and 3) onall ports Configurable MTUs of up to 9216 bytes (jumboframes)Typical operatingpower 152 watts (W) 142WMaximum power 265W 245WTypical heatdissipation 519 BTUs per hr 484 BTUs per hrMaximum heatdissipation 904 BTUs per hr 835 BTUs per hrPerformance*Cisco Nexus 35241-PPS output will be enabled in a future software revision.Table 7.Cisco Nexus 3548x and 3524x SpecificationsSpecificationPhysicalCisco Nexus 3548x 48 fixed SFP ports (1 or 10 Gbps) Dual redundant hot-swappable power supplies Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3 QuickConnectconnector type* One 10/100/1000-Mbps management port One RS-232 serial console port Two USB ports Locator LED Locator LED buttonCisco Nexus 3524x 24 fixed SFP ports (1 or 10 Gbps); expandable to48 ports Dual redundant hot-swappable power supplies Four individual redundant hot-swappable fans One 1-PPS timing port, with the RF1.0/2.3QuickConnect connector type* One 10/100/1000-Mbps management port One RS-232 serial console port Two USB ports Locator LED Locator LED button 960-Gbps switching capacity Forwarding rate of 720 mpps 480-Gbps switching capacity Forwarding rate of 360 mpps Line-rate traffic throughput (both Layer 2 and 3) on allports Configurable MTUs of up to 9216 bytes (jumbo frames) Line-rate traffic throughput (both Layer 2 and 3) onall ports Configurable MTUs of up to 9216 bytes (jumboframes)Typical operatingpower 112W 102WMaximum power 213W 193WPerformance 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 8 of 15

*SpecificationCisco Nexus 3548xCisco Nexus 3524xTypical heatdissipation 383 BTUs per hr 348 BTUs per hrMaximum heatdissipation 727 BTUs per hr 658 BTUs per hr1-PPS output will be enabled in a future software revision.Table 8.Hardware Specifications Common to All SwitchesHardware tables andscalabilityModeNormal ModeWarp ModeNumber of MAC addresses64,0008000Number of IPv4 unicast routes24,0004000Number of IPv4 hosts64,0008000Number of IPv4 multicast routes80008000Number of VLANS4096Number of ACL entries4096Number of spanning-tree instancesRapid Spanning Tree Protocol (RSTP): 512Multiple Spanning Tree (MST) Protocol: 64Number of EtherChannels24Number of ports per EtherChannel24Buffer size6 MB shared among 16 ports; 18 MB totalBoot flash memory2 GB (3524P and 3548P models)4 GB (3524X and 3548X models)PowerNumber of power suppliesPower supply typesCooling2 (redundant) AC (forward and reversed airflow) DC (forward and reversed airflow)Input voltage100 to 240 VACFrequency50 to 60 HzPower supply efficiency89 to 91% at 220VForward and reversed airflow schemes Forward airflow: Port-side exhaust (air enters through fan tray and power supplies and exits through ports) Reversed airflow: Port-side intake (air enters through ports and exits through fan tray and power supplies)Four individual, hot-swappable fans (3 1 redundant)EnvironmentDimensions (height x width x depth)1.72 x 17.3 x 18.38 in. (4.36 x 43.9 x 46.7 cm)Weight17.4 lb (7.9 kg)Operating temperature32 to 104 F (0 to 40 C)Storage temperature-40 to 158 F (-40 to 70 C)Relative humidity (operating) 10 to 85% noncondensing Up to 5 days at maximum (85%) humidity Recommend ASHRAE data center environmentTable 9.DescriptionLayer 2Relative humidity (nonoperating)5 to 95% noncondensingAltitude0 to 10,000 ft (0 to 3000m)Mean time between failure (MTBF)317,030 hoursSoftware Features Common to All SwitchesSpecifications Layer 2 switch ports and VLAN trunks IEEE 802.1Q VLAN encapsulation 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 9 of 15

DescriptionSpecifications Support for up to 4096 VLANs Rapid Per-VLAN Spanning Tree Plus (PVRST ) (IEEE 802.1w compatible) MSTP (IEEE 802.1s): 64 instances Spanning Tree PortFast Spanning Tree Root Guard Spanning Tree Bridge Assurance Cisco EtherChannel technology (up to 24 ports per EtherChannel) LACP: IEEE 802.3ad, IEEE 802.1ax Advanced PortChannel hashing based on Layer 2, 3, and 4 information Jumbo frames on all ports (up to 9216 bytes) Storm control (multicast and broadcast) Link-level flow control (IEEE 802.3x) vPC*2Layer 3 Layer 3 interfaces: Routed ports on interfaces, switch virtual interfaces (SVIs), PortChannels, and subinterfaces(total: 1024) 24-way Equal-Cost Multipath (ECMP) 4096 ACL entries Routing protocols: Static, RIPv2, EIGRP, OSPF, and BGP HSRP and VRRP ACL: Routed ACL with Layer 3 and 4 options to match ingress and egress ACLs VRF: VRF-Lite (IP VPN), VRF-aware unicast (BGP, OSPF, and RIP), and VRF-aware multicast VRF route leaking Jumbo frame support (up to 9216 bytes)Multicast Multicast: PIMv2, PIM Sparse Mode (PIM-SM), SSM, and BiDir Bootstrap router (BSR), Auto-RP, and Static RP MSDP and Anycast RP Internet Group Management Protocol (IGMP) Versions 2 and 3Security Ingress ACLs (standard and extended) on Ethernet Standard and extended Layer 3 to 4 ACLs include IPv4, Internet Control Message Protocol (ICMP), TCP, and UserDatagram Protocol (UDP) VLAN-based ACLs (VACLs) Port-based ACLs (PACLs) Named ACLs ACLs on virtual terminals (VTYs) Dynamic Host Configuration Protocol (DHCP) relay Control Plane Policing (CoPP)Cisco Nexus DataBroker Topology support for tap and SPAN aggregation Traffic load balancing to multiple monitoring tools Time stamping using PTP Packet truncation Traffic filtering based on Layer 1 through Layer 4 header information Traffic replication and forwarding to multiple monitoring tools Robust RBAC Northbound Representational State Transfer (REST) API for all programmability support2vPC is not supported in WARP mode. For more information please see the configuration guide. 2017 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 10 of 15

DescriptionManagementSpecifications Power On Auto Provisioning (POAP)Python scriptingSwitch management using 10/100/1000-Mbps management or console portsCLI-based console to provide detailed out-of-band managementIn-band switch managementLocator and beacon LEDsConfiguration rollbackSSHv2TelnetAAAAAA with RBACRADIUSTACACS Syslog Embedded packet analyzer SNMP v1, v2, and v3 Enhanced SNMP MIB support XML (NETCONF) support Remote monitoring (RMON) Advanced Encryption Standard (AES) for management traffic Unified username and passwords across CLI and SNMP Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) Digital certificates for management between switch and RADIUS server Cisco Discovery Protocol Versions 1 and 2 RBAC SPAN on physical, PortChannel, and VLAN ERSPAN Versions 2 and 3 Ingress and egress packet counters per interface Network Time Protocol (NTP) Cisco OHMS Comprehensive bootup diagnostic tests Cisco Call Home Cisco DCNM Active buffer monitoring PTP (IEEE 1588) boundary clockTable 10.Management and Standards SupportDescriptionSpecificationMIB supportGeneric MIBs SNMPv2-SMIMonitoring MIBs NOTIFICATION-LOG-MIB CISCO-SMI SNMPv2-TM CISCO-SYSLOG-EXT-MIB CISCO-PROCESS-MIB SNMPv2-TC IANA-ADDRESS-FAMILY-NUMBERS-MIB RMON-MIB CISCO-RMON-CONFIG-MIB IANAifType-MIB IANAiprouteprotocol-MIB HCNUM-TC CISCO-TC SNMPv2-MIB SNMP-COMMUNITY-MIB SNMP-FRAMEWORK-MIB SNMP-NOTIFICATION-MIB SNMP-TARGET-MIB

Cisco Nexus 3548x and 3524x with Blue Handles Indicating Port-side Exhaust Airflow Figure 6. Cisco Nexus 3548x and 3524x with Red Handles Indicating Port-side Intake Airflow Cisco NX-OS Software Overview Cisco NX-OS is a data center-class operating system built with modu