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2012-04-17T15:26:44Z

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Overall flexibility and Scalability
• Software program compatibility: Cisco NX-OS interoperates with Cisco merchandise managing any variant of the Cisco IOS Software running technique. It also interoperates with any networking OS that conforms to the networking criteria detailed as supported in this data sheet.
• Typical application in the course of the knowledge center: Cisco NX-OS simplifies the knowledge center functioning atmosphere and provides a unified OS created to operate all areas of the facts center network, such as storage, virtualization, and Layer 3 network protocols.
• Modular computer software layout: Cisco NX-OS is designed to assist distributed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and distributed line-card processors. Computationally intensive duties, these kinds of as components table programming, can be offloaded to dedicated processors distributed throughout the line cards. Cisco NX-OS modular procedures are instantiated on need, each in a individual shielded memory house. Thus, processes are started off and method means allotted only when a element is enabled. The modular processes are governed by a authentic-time preemptive scheduler that will help ensure the timely processing of critical features.
• Virtual device contexts (VDCs): Cisco NX-OS provides the ability to section OS and hardware methods into digital contexts that emulate virtual gadgets. Every VDC has its possess computer software processes, devoted components methods (physical interfaces, VLANs, routing desk dimension, Virtual Route Forwarding [VRF], and many others.), and unbiased management natural environment. VDCs are instrumental in the consolidation of independent networks onto a common infrastructure, maintaining the administrative boundary separation and fault-isolation features of physically independent networks though supplying several of the operating expense added benefits of a single infrastructure. Every VDC can be restarted without having affecting the manage, info, or conduite aircraft of other VDCs in the process.
• Assistance for Cisco Nexus Fabric Extender: The Cisco Nexus 7000 Series Switch can act as the parent switch for the Cisco Nexus 2248TP GE Fabric Extender, the Cisco Nexus 2224TP GE Fabric Extender, and the Cisco Nexus 2232PP 10GE Fabric Extender. Mainly because it is a logical extension of its guardian switch, the Cisco Nexus Fabric Extender inherits the capabilities and rewards made available by the Cisco Nexus 7000 Series. The combination of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches moyen the rewards of top-of-rack (ToR) and conclude-of-row (EoR) network architectures, enabling information facilities to scale the number of Gigabit Ethernet access ports, reducing cable runs, and decreasing administration points in the network.
Availability
• Ongoing process operation: Cisco NX-OS gives ongoing system operation, permitting maintenance, upgrades, and application certification without assistance interruption. The blend of course of action modularity, hitless In-Service Application Upgrade (ISSU) functionality, and stateful graceful restart mitigates the results of computer software upgrades and other functions.
• Hitless ISSU: Hitless ISSU offers the ability to accomplish clear software package upgrades on platforms with redundant supervisors, reducing downtime and permitting consumers to integrate the newest attributes and features with tiny or no damaging effect on community operation.
• Clean improvement of enhancements and problem fixes: The modularity of Cisco NX-OS permits new attributes, enhancements, and issue fixes to be transparently built-in into the software package. These up to date photos can then be installed with out disruption making use of Cisco ISSU.
• Procedure survivability: Important procedures are operate in shielded memory place and independently of every single other and the kernel, giving detailed provider isolation and fault containment and enabling modular patching and upgrading and swift restartability. Particular person procedures can be restarted independently with no decline of state information and with out impacting info forwarding, so that soon after an update or failure, processes restart in milliseconds devoid of negatively affecting adjacent devices or expert services. Processes with significant amounts of state this kind of as IP routing protocols are restarted utilizing criteria-centered nonstop forwarding (NSF) swish restart mechanisms other procedures use a neighborhood persistent storage assistance (PSS) to sustain their state.
• Stateful supervisor failover: Redundant supervisors are stored synchronized at all moments to permit swift stateful supervisor failover. Advanced checks are in put to assist guarantee that the state is consistent and reputable through the complete distributed architecture soon after failover happens.
• Trustworthy interprocess communication: Cisco NX-OS facilitates dependable communication involving procedures to aid guarantee that all messages are delivered and appropriately acted on through failure and adverse disorders. This communication can help make certain course of action synchronization and state consistency throughout procedures that may possibly be instantiated on processors distributed over many supervisors and I/O modules.
• Redundant switched Ethernet out-of-band channels (EOBCs): Cisco NX-OS can make full use of redundant EOBCs for communication involving manage and I/O module processors.
• Network-based availability: Network convergence is optimized by providing equipment and capabilities to make each failover and fallback transparent and rapidly. For case in point, Cisco NX-OS offers Spanning Tree Protocol enhancements this sort of as Bridge Protocol Info Device (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to enable make certain the wellness of the Spanning Tree Protocol command aircraft Unidirectional Link Detection (UDLD) Protocol NSF swish restart of routing protocols millisecond timers for 1st-Hop Resiliency Protocol (FHRP) Shortest-Path First (SPF) optimizations this kind of as backlink-state ad (LSA) pacing and incremental SPF IEEE 802.3ad weblink aggregation with adjustable timers and Bidirectional Forwarding Detection (BFD).
Serviceability
• Troubleshooting and diagnostics: Cisco NX-OS is constructed with distinctive serviceability capabilities to make it possible for community operators to consider earlier motion dependent on network developments and occasions, improving community setting up and increasing network operations middle (NOC) and vendor reaction moments. Clever Phone Property, Cisco Generic On the internet Diagnostics (GOLD), and Cisco Embedded Celebration Supervisor (EEM) are some of the features that boost the serviceability of Cisco NX-OS.
• Switched Port Analyzer (SPAN): The SPAN function makes it possible for an administrator to assess all traffic in between ports (named the SPAN supply ports) by nonintrusively directing the SPAN session visitors to a SPAN location port that has an exterior analyzer attached to it. Encapsulated Remote SPAN (ERSPAN) will allow remote monitoring of multiple switches throughout the network by encapsulating SPAN site visitors into a generic routing encapsulation (GRE) tunnel.
• Ethanalyzer: Cisco NX-OS includes a created-in packet analyzer to watch and troubleshoot manage- and info-airplane website traffic. The packet analyzer is primarily based on the common Wireshark open supply community protocol analyzer.
• Clever Get in touch with Household: The Sensible Phone House characteristic repeatedly screens hardware and application components to supply e mail-based notification of essential system functions. A flexible array of concept formats is accessible for optimum compatibility with pager services, common electronic mail, and XML-centered automated parsing purposes. It provides alert grouping capabilities and customizable location profiles. This attribute can be utilized, for case in point, to specifically web page a network assist engineer, deliver an e mail concept to a NOC, and hire Cisco AutoNotify companies to specifically crank out a instance with the Cisco Technical Guidance Center (TAC). This feature is a step towards autonomous technique operation, enabling networking devices to inform IT when a difficulty occurs and supporting ensure that the challenge is acted on swiftly, cutting down time to resolution and rising technique uptime.
• Cisco GOLD: Cisco GOLD is a suite of diagnostic services to validate that components and inside information paths are operating as made. Boot-time diagnostics, steady monitoring, standby fabric loopback exams, and on-desire and scheduled exams are part of the Cisco GOLD attribute set. This market-primary diagnostics subsystem will allow swift fault isolation and steady program monitoring critical in today's continuously running environments.
• Cisco EEM: Cisco EEM is a strong system and process conduite technology built-in into Cisco NX-OS. Cisco EEM aids clients harness the network intelligence intrinsic to the Cisco application and allows them to customize habits based on network functions as they come about.
• Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Versions five and nine exports as properly as the Flexible NetFlow configuration model and components-dependent Sampled NetFlow for improved scalability. In addition to Layer 3 NetFlow, Layer two NetFlow is supported.416120812

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