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Flexibility and Scalability • Software compatibility: Cisco NX-OS interoperates with Cisco products jogging any variant of the Cisco IOS Software program functioning method. It also interoperates with any networking OS that conforms to the networking criteria listed as supported in this facts sheet. • Frequent software in the course of the facts center: Cisco NX-OS simplifies the facts heart working surroundings and provides a unified OS created to operate all regions of the data heart community, which includes storage, virtualization, and Layer three network protocols. • Modular software package layout: Cisco NX-OS is developed to assist dispersed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and distributed line-card processors. Computationally intensive tasks, such as components desk programming, can be offloaded to devoted processors distributed throughout the line cards. Cisco NX-OS modular procedures are instantiated on desire, each in a individual guarded memory room. Thus, processes are commenced and process methods allotted only when a attribute is enabled. The modular procedures are governed by a authentic-time preemptive scheduler that can help make certain the well timed processing of essential capabilities. • Virtual device contexts (VDCs): Cisco NX-OS presents the ability to segment OS and components resources into digital contexts that emulate virtual units. Each VDC has its individual computer software procedures, committed hardware resources (bodily interfaces, VLANs, routing desk dimensions, Virtual Route Forwarding [VRF], etc.), and unbiased conduite natural environment. VDCs are instrumental in the consolidation of separate networks onto a frequent infrastructure, keeping the administrative boundary separation and fault-isolation traits of bodily separate networks even though delivering quite a few of the running charge benefits of a solitary infrastructure. Just about every VDC can be restarted with no affecting the manage, info, or management aircraft of other VDCs in the system. • Support for Cisco Nexus Fabric Extender: The Cisco Nexus 7000 Series Switch can act as the guardian switch for the Cisco Nexus 2248TP GE Fabric Extender, the Cisco Nexus 2224TP GE Fabric Extender, and the Cisco Nexus 2232PP 10GE Fabric Extender. Due to the fact it is a reasonable extension of its guardian switch, the Cisco Nexus Fabric Extender inherits the capabilities and added benefits offered by the Cisco Nexus 7000 Series. The mix of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches brings together the benefits of top-of-rack (ToR) and finish-of-row (EoR) network architectures, enabling data centers to scale the amount of Gigabit Ethernet entry ports, lowering cable runs, and lowering conduite factors in the network. Availability • Ongoing process operation: Cisco NX-OS supplies steady system operation, permitting servicing, upgrades, and software package certification without having provider interruption. The mixture of approach modularity, hitless In-Assistance Computer software Up grade (ISSU) ability, and stateful swish restart mitigates the effects of application upgrades and other functions. • Hitless ISSU: Hitless ISSU provides the capability to complete transparent software upgrades on platforms with redundant supervisors, minimizing downtime and enabling consumers to combine the most recent characteristics and functions with small or no damaging outcome on community operation. • Sleek improvement of enhancements and issue fixes: The modularity of Cisco NX-OS will allow new attributes, enhancements, and problem fixes to be transparently built-in into the software program. These up to date photos can then be set up with no disruption employing Cisco ISSU. • Process survivability: Essential processes are operate in secured memory room and independently of just about every other and the kernel, providing specific support isolation and fault containment and enabling modular patching and upgrading and swift restartability. Personal procedures can be restarted independently with no reduction of state info and with out impacting info forwarding, so that right after an up grade or failure, procedures restart in milliseconds without having negatively impacting adjacent products or expert services. Procedures with big amounts of state this sort of as IP routing protocols are restarted making use of specifications-centered nonstop forwarding (NSF) swish restart mechanisms other procedures use a local persistent storage services (PSS) to sustain their state. • Stateful supervisor failover: Redundant supervisors are held synchronized at all times to enable swift stateful supervisor failover. Refined checks are in put to aid make certain that the state is reliable and trustworthy all through the entire distributed architecture after failover takes place. • Reliable interprocess communication: Cisco NX-OS facilitates trusted communication among processes to aid guarantee that all messages are sent and effectively acted on for the duration of failure and adverse situations. This communication aids ensure method synchronization and state consistency throughout procedures that may well be instantiated on processors distributed about a number of 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 among handle and I/O module processors. • Community-based mostly availability: Community convergence is optimized by offering equipment and functions to make the two failover and fallback clear and quick. For instance, Cisco NX-OS gives Spanning Tree Protocol enhancements this sort of as Bridge Protocol Facts Unit (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to assist ensure the wellbeing of the Spanning Tree Protocol command plane Unidirectional Website link Detection (UDLD) Protocol NSF sleek restart of routing protocols millisecond timers for Initial-Hop Resiliency Protocol (FHRP) Shortest-Route Very first (SPF) optimizations such as weblink-state ad (LSA) pacing and incremental SPF IEEE 802.3ad website link aggregation with adjustable timers and Bidirectional Forwarding Detection (BFD). Serviceability • Troubleshooting and diagnostics: Cisco NX-OS is designed with unique serviceability features to allow network operators to require earlier motion primarily based on community trends and activities, enhancing community planning and improving community functions heart (NOC) and vendor reaction instances. Wise Call Household, Cisco Generic On the internet Diagnostics (GOLD), and Cisco Embedded Celebration Manager (EEM) are some of the characteristics that enhance the serviceability of Cisco NX-OS. • Switched Port Analyzer (SPAN): The SPAN function enables an administrator to assess all traffic involving ports (called the SPAN source ports) by nonintrusively directing the SPAN session website traffic to a SPAN location port that has an external analyzer attached to it. Encapsulated Remote SPAN (ERSPAN) enables remote monitoring of several switches throughout the community by encapsulating SPAN targeted traffic into a generic routing encapsulation (GRE) tunnel. • Ethanalyzer: Cisco NX-OS incorporates a developed-in packet analyzer to check and troubleshoot manage- and information-plane visitors. The packet analyzer is based on the popular Wireshark open supply community protocol analyzer. • Intelligent Phone Residence: The Wise Get in touch with Household feature repeatedly screens hardware and software parts to present e-mail-primarily based notification of essential technique activities. A versatile selection of message formats is accessible for ideal compatibility with pager providers, normal email, and XML-dependent automated parsing applications. It gives notify grouping abilities and customizable spot profiles. This function can be employed, for illustration, to immediately webpage a community assistance engineer, ship an email message to a NOC, and employ Cisco AutoNotify solutions to directly produce a case with the Cisco Technical Guidance Middle (TAC). This characteristic is a action toward autonomous program operation, enabling networking units to inform IT when a problem takes place and helping ensure that the difficulty is acted on quickly, cutting down time to resolution and escalating system uptime. • Cisco GOLD: Cisco GOLD is a suite of diagnostic amenities to verify that components and inner knowledge paths are running as designed. Boot-time diagnostics, ongoing monitoring, standby fabric loopback assessments, and on-need and scheduled assessments are part of the Cisco GOLD feature established. This industry-top diagnostics subsystem permits quick fault isolation and continuous program monitoring important in today's constantly functioning environments. • Cisco EEM: Cisco EEM is a powerful unit and technique conduite engineering built-in into Cisco NX-OS. Cisco EEM assists consumers harness the community intelligence intrinsic to the Cisco software package and enables them to personalize behavior primarily based on network occasions as they happen. • Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Versions five and nine exports as properly as the Adaptable NetFlow configuration design and hardware-centered Sampled NetFlow for increased scalability. In addition to Layer three NetFlow, Layer two NetFlow is supported.416120812