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2012-04-17T23:07:10Z

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Versatility and Scalability
• Application compatibility: Cisco NX-OS interoperates with Cisco goods jogging any variant of the Cisco IOS Software working method. It also interoperates with any networking OS that conforms to the networking criteria detailed as supported in this information sheet.
• Prevalent software during the knowledge center: Cisco NX-OS simplifies the knowledge middle functioning setting and gives a unified OS designed to operate all regions of the information heart community, such as storage, virtualization, and Layer three community protocols.
• Modular software layout: Cisco NX-OS is intended to aid dispersed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and dispersed line-card processors. Computationally intensive tasks, such as hardware desk programming, can be offloaded to focused processors dispersed throughout the line cards. Cisco NX-OS modular processes are instantiated on desire, each and every in a independent safeguarded memory house. As a result, procedures are started out and system sources allotted only when a attribute is enabled. The modular procedures are governed by a real-time preemptive scheduler that will help make sure the well timed processing of important functions.
• Digital system contexts (VDCs): Cisco NX-OS offers the capability to phase OS and hardware means into digital contexts that emulate virtual products. Each and every VDC has its individual software program processes, focused components assets (physical interfaces, VLANs, routing desk size, Virtual Route Forwarding [VRF], and many others.), and unbiased administration atmosphere. VDCs are instrumental in the consolidation of different networks onto a common infrastructure, maintaining the administrative boundary separation and fault-isolation characteristics of physically different networks while giving a lot of of the running price advantages of a single infrastructure. Every single VDC can be restarted with no affecting the control, data, or management airplane of other VDCs in the process.
• Assistance for Cisco Nexus Fabric Extender: The Cisco Nexus 7000 Series Switch can act as the mother or father switch for the Cisco Nexus 2248TP GE Fabric Extender, the Cisco Nexus 2224TP GE Fabric Extender, and the Cisco Nexus 2232PP 10GE Fabric Extender. Because it is a logical extension of its mother or father switch, the Cisco Nexus Fabric Extender inherits the functions and advantages made available by the Cisco Nexus 7000 Series. The blend of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches combines the positive aspects of top rated-of-rack (ToR) and conclusion-of-row (EoR) network architectures, enabling data facilities to scale the amount of Gigabit Ethernet access ports, reducing cable runs, and lowering conduite factors in the community.
Availability
• Steady method operation: Cisco NX-OS offers steady process operation, permitting routine maintenance, upgrades, and software program certification with no services interruption. The blend of procedure modularity, hitless In-Services Software package Up grade (ISSU) capacity, and stateful graceful restart mitigates the outcomes of software package upgrades and other operations.
• Hitless ISSU: Hitless ISSU provides the functionality to complete clear software program upgrades on platforms with redundant supervisors, lowering downtime and making it possible for consumers to integrate the most recent functions and features with little or no detrimental influence on community operation.
• Sleek enhancement of enhancements and difficulty fixes: The modularity of Cisco NX-OS permits new features, enhancements, and issue fixes to be transparently integrated into the software program. These updated photos can then be mounted with out disruption using Cisco ISSU.
• Approach survivability: Important processes are operate in safeguarded memory room and independently of just about every other and the kernel, giving thorough assistance isolation and fault containment and enabling modular patching and upgrading and rapid restartability. Individual processes can be restarted independently devoid of decline of state information and without affecting information forwarding, so that after an upgrade or failure, procedures restart in milliseconds with out negatively affecting adjacent devices or expert services. Procedures with big amounts of state this kind of as IP routing protocols are restarted employing expectations-based mostly nonstop forwarding (NSF) sleek restart mechanisms other procedures use a local persistent storage assistance (PSS) to sustain their state.
• Stateful supervisor failover: Redundant supervisors are stored synchronized at all instances to help quick stateful supervisor failover. Sophisticated checks are in position to aid make certain that the state is reliable and trustworthy through the entire distributed architecture right after failover happens.
• Reliable interprocess communication: Cisco NX-OS facilitates trusted communication involving procedures to help assure that all messages are sent and appropriately acted on in the course of failure and adverse situations. This communication assists make sure procedure synchronization and state consistency throughout procedures that may be instantiated on processors dispersed more than several supervisors and I/O modules.
• Redundant switched Ethernet out-of-band channels (EOBCs): Cisco NX-OS can make entire use of redundant EOBCs for communication involving manage and I/O module processors.
• Network-dependent availability: Network convergence is optimized by delivering equipment and functions to make each failover and fallback clear and fast. For instance, Cisco NX-OS provides Spanning Tree Protocol enhancements this kind of as Bridge Protocol Information Unit (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to enable make sure the wellbeing of the Spanning Tree Protocol management aircraft Unidirectional Weblink Detection (UDLD) Protocol NSF graceful restart of routing protocols millisecond timers for First-Hop Resiliency Protocol (FHRP) Shortest-Route Very first (SPF) optimizations such as weblink-state advertisement (LSA) pacing and incremental SPF IEEE 802.3ad hyperlink aggregation with adjustable timers and Bidirectional Forwarding Detection (BFD).
Serviceability
• Troubleshooting and diagnostics: Cisco NX-OS is designed with exclusive serviceability features to make it possible for community operators to have earlier action primarily based on network trends and functions, improving community preparing and improving network operations center (NOC) and vendor response occasions. Intelligent Phone Household, Cisco Generic Online Diagnostics (GOLD), and Cisco Embedded Event Manager (EEM) are some of the functions that enhance the serviceability of Cisco NX-OS.
• Switched Port Analyzer (SPAN): The SPAN attribute makes it possible for an administrator to assess all website traffic involving ports (named the SPAN supply ports) by nonintrusively directing the SPAN session website traffic to a SPAN location port that has an exterior analyzer connected to it. Encapsulated Remote SPAN (ERSPAN) will allow remote monitoring of many switches across the network by encapsulating SPAN site visitors into a generic routing encapsulation (GRE) tunnel.
• Ethanalyzer: Cisco NX-OS involves a constructed-in packet analyzer to keep track of and troubleshoot management- and knowledge-aircraft traffic. The packet analyzer is dependent on the preferred Wireshark open up supply network protocol analyzer.
• Sensible Phone Residence: The Sensible Contact Household attribute repeatedly screens components and computer software elements to present e-mail-centered notification of crucial process activities. A flexible variety of message formats is accessible for optimum compatibility with pager companies, typical e-mail, and XML-based mostly automated parsing apps. It offers alert grouping capabilities and customizable destination profiles. This function can be used, for illustration, to straight webpage a community assist engineer, deliver an e mail concept to a NOC, and hire Cisco AutoNotify expert services to directly crank out a situation with the Cisco Technical Support Heart (TAC). This attribute is a stage toward autonomous method operation, enabling networking products to inform IT when a issue occurs and serving to assure that the dilemma is acted on swiftly, decreasing time to resolution and raising program uptime.
• Cisco GOLD: Cisco GOLD is a suite of diagnostic services to confirm that hardware and inside data paths are working as designed. Boot-time diagnostics, continuous monitoring, standby fabric loopback assessments, and on-desire and scheduled assessments are element of the Cisco GOLD characteristic set. This sector-foremost diagnostics subsystem makes it possible for rapid fault isolation and ongoing process monitoring crucial in today's continually running environments.
• Cisco EEM: Cisco EEM is a strong system and process administration technologies built-in into Cisco NX-OS. Cisco EEM can help clients harness the network intelligence intrinsic to the Cisco software package and enables them to customize conduct dependent on network occasions as they happen.
• Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Variations five and 9 exports as effectively as the Flexible NetFlow configuration model and components-centered Sampled NetFlow for enhanced scalability. In addition to Layer 3 NetFlow, Layer 2 NetFlow is supported.416120812

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