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Overall flexibility and Scalability • Software program compatibility: Cisco NX-OS interoperates with Cisco goods operating any variant of the Cisco IOS Computer software operating method. It also interoperates with any networking OS that conforms to the networking standards listed as supported in this information sheet. • Widespread software program in the course of the information heart: Cisco NX-OS simplifies the info heart running atmosphere and provides a unified OS designed to operate all parts of the info heart community, like storage, virtualization, and Layer three network protocols. • Modular software program design: Cisco NX-OS is designed to assistance dispersed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and dispersed line-card processors. Computationally intensive responsibilities, these kinds of as hardware desk programming, can be offloaded to committed processors distributed across the line cards. Cisco NX-OS modular processes are instantiated on need, every in a individual safeguarded memory house. As a result, processes are started and process sources allocated only when a function is enabled. The modular processes are governed by a authentic-time preemptive scheduler that assists guarantee the well timed processing of essential capabilities. • Digital device contexts (VDCs): Cisco NX-OS delivers the capacity to segment OS and components means into digital contexts that emulate digital devices. Each and every VDC has its possess application procedures, devoted hardware sources (physical interfaces, VLANs, routing desk measurement, Digital Route Forwarding [VRF], etc.), and independent conduite environment. VDCs are instrumental in the consolidation of individual networks onto a widespread infrastructure, keeping the administrative boundary separation and fault-isolation features of physically different networks whilst offering several of the operating expense rewards of a simple infrastructure. Each and every VDC can be restarted with out impacting the management, info, or conduite airplane of other VDCs in the technique. • 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 rational extension of its guardian switch, the Cisco Nexus Fabric Extender inherits the capabilities and positive aspects presented by the Cisco Nexus 7000 Series. The blend of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches moyen the added benefits of prime-of-rack (ToR) and stop-of-row (EoR) community architectures, enabling knowledge centers to scale the range of Gigabit Ethernet entry ports, reducing cable runs, and decreasing administration points in the community. Availability • Ongoing program operation: Cisco NX-OS gives steady technique operation, permitting upkeep, upgrades, and software program certification with no services interruption. The combination of approach modularity, hitless In-Service Computer software Improve (ISSU) capability, and stateful graceful restart mitigates the results of computer software upgrades and other functions. • Hitless ISSU: Hitless ISSU delivers the ability to complete clear software upgrades on platforms with redundant supervisors, cutting down downtime and enabling clients to combine the newest capabilities and features with little or no negative influence on network operation. • Sleek advancement of enhancements and issue fixes: The modularity of Cisco NX-OS allows new characteristics, enhancements, and difficulty fixes to be transparently integrated into the computer software. These up-to-date images can then be put in with out disruption working with Cisco ISSU. • Approach survivability: Vital procedures are operate in safeguarded memory room and independently of each other and the kernel, providing specific support isolation and fault containment and enabling modular patching and upgrading and quick restartability. Particular person processes can be restarted independently with out reduction of state data and with no impacting facts forwarding, so that soon after an update or failure, processes restart in milliseconds with no negatively affecting adjacent gadgets or solutions. Processes with huge amounts of state these as IP routing protocols are restarted using requirements-primarily based nonstop forwarding (NSF) sleek restart mechanisms other processes use a neighborhood persistent storage service (PSS) to sustain their state. • Stateful supervisor failover: Redundant supervisors are kept synchronized at all moments to permit rapid stateful supervisor failover. Refined checks are in place to aid make sure that the state is constant and reliable during the entire distributed architecture following failover happens. • Trustworthy interprocess communication: Cisco NX-OS facilitates trustworthy communication among procedures to support make certain that all messages are sent and properly acted on for the duration of failure and adverse conditions. This communication helps make sure procedure synchronization and state consistency throughout procedures that may be instantiated on processors distributed above multiple supervisors and I/O modules. • Redundant switched Ethernet out-of-band channels (EOBCs): Cisco NX-OS can make total use of redundant EOBCs for communication between manage and I/O module processors. • Network-primarily based availability: Community convergence is optimized by offering tools and capabilities to make each failover and fallback clear and rapid. For illustration, Cisco NX-OS supplies Spanning Tree Protocol enhancements these kinds of as Bridge Protocol Knowledge Device (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to support guarantee the well being of the Spanning Tree Protocol control aircraft Unidirectional Backlink Detection (UDLD) Protocol NSF swish restart of routing protocols millisecond timers for First-Hop Resiliency Protocol (FHRP) Shortest-Route Very first (SPF) optimizations this kind of as website link-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 developed with exclusive serviceability capabilities to make it possible for network operators to take early action primarily based on network developments and functions, boosting community planning and bettering community functions heart (NOC) and vendor reaction occasions. Intelligent Call Home, Cisco Generic On the web Diagnostics (GOLD), and Cisco Embedded Occasion Supervisor (EEM) are some of the features that improve the serviceability of Cisco NX-OS. • Switched Port Analyzer (SPAN): The SPAN element enables an administrator to examine all traffic in between ports (referred to as the SPAN supply ports) by nonintrusively directing the SPAN session website traffic to a SPAN spot port that has an external analyzer connected to it. Encapsulated Remote SPAN (ERSPAN) makes it possible for remote monitoring of several switches across the network by encapsulating SPAN targeted traffic into a generic routing encapsulation (GRE) tunnel. • Ethanalyzer: Cisco NX-OS involves a designed-in packet analyzer to watch and troubleshoot command- and info-airplane site visitors. The packet analyzer is based mostly on the popular Wireshark open up source network protocol analyzer. • Sensible Call Household: The Wise Contact Household function continuously screens components and computer software elements to give e mail-centered notification of vital method events. A adaptable selection of message formats is obtainable for ideal compatibility with pager providers, common email, and XML-centered automatic parsing apps. It offers alert grouping abilities and customizable location profiles. This element can be used, for illustration, to straight page a network assist engineer, send an email concept to a NOC, and use Cisco AutoNotify providers to right generate a instance with the Cisco Technical Assistance Center (TAC). This feature is a step towards autonomous technique operation, enabling networking gadgets to inform IT when a issue occurs and aiding guarantee that the problem is acted on promptly, lowering time to resolution and growing program uptime. • Cisco GOLD: Cisco GOLD is a suite of diagnostic amenities to validate that components and inside info paths are working as created. Boot-time diagnostics, continuous monitoring, standby fabric loopback checks, and on-demand and scheduled checks are part of the Cisco GOLD characteristic established. This industry-leading diagnostics subsystem allows rapid fault isolation and ongoing program monitoring important in today's continuously functioning environments. • Cisco EEM: Cisco EEM is a highly effective system and program management technological innovation integrated into Cisco NX-OS. Cisco EEM aids buyers harness the community intelligence intrinsic to the Cisco software package and enables them to customise habits dependent on network occasions as they come about. • Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Variants five and 9 exports as properly as the Adaptable NetFlow configuration design and components-dependent Sampled NetFlow for improved scalability. In addition to Layer three NetFlow, Layer 2 NetFlow is supported.416120812
