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última version al 00:21 18 abr 2012

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Overall flexibility and Scalability • Software compatibility: Cisco NX-OS interoperates with Cisco goods running any variant of the Cisco IOS Computer software running process. It also interoperates with any networking OS that conforms to the networking requirements outlined as supported in this information sheet. • Prevalent application in the course of the data heart: Cisco NX-OS simplifies the information heart operating natural environment and gives a unified OS developed to operate all parts of the data center network, together with storage, virtualization, and Layer three community protocols. • Modular computer software design and style: Cisco NX-OS is developed to support distributed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and distributed line-card processors. Computationally intensive tasks, these kinds of as components desk programming, can be offloaded to dedicated processors dispersed throughout the line cards. Cisco NX-OS modular procedures are instantiated on desire, each in a separate secured memory area. Hence, procedures are started out and process sources allotted only when a element is enabled. The modular procedures are governed by a real-time preemptive scheduler that can help ensure the well timed processing of critical capabilities. • Virtual unit contexts (VDCs): Cisco NX-OS provides the capacity to phase OS and components means into digital contexts that emulate virtual gadgets. Just about every VDC has its possess software package processes, dedicated components sources (bodily interfaces, VLANs, routing table size, Digital Route Forwarding [VRF], etcetera.), and unbiased management setting. VDCs are instrumental in the consolidation of independent networks onto a frequent infrastructure, retaining the administrative boundary separation and fault-isolation attributes of physically individual networks whilst delivering many of the running cost added benefits of a solitary infrastructure. Every single VDC can be restarted without having impacting the control, info, or administration aircraft of other VDCs in the process. • Support for Cisco Nexus Fabric Extender: The Cisco Nexus 7000 Series Switch can act as the mum or dad 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 father or mother switch, the Cisco Nexus Fabric Extender inherits the functions and advantages presented by the Cisco Nexus 7000 Series. The mix of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches combines the added benefits of top-of-rack (ToR) and finish-of-row (EoR) community architectures, enabling information facilities to scale the range of Gigabit Ethernet access ports, minimizing cable runs, and minimizing management factors in the community. Availability • Ongoing system operation: Cisco NX-OS provides continuous process operation, permitting servicing, upgrades, and application certification without having services interruption. The mix of method modularity, hitless In-Service Software package Up grade (ISSU) functionality, and stateful sleek restart mitigates the results of application upgrades and other functions. • Hitless ISSU: Hitless ISSU provides the ability to perform clear application upgrades on platforms with redundant supervisors, reducing downtime and permitting buyers to integrate the latest attributes and capabilities with very little or no damaging effect on network operation. • Smooth advancement of enhancements and problem fixes: The modularity of Cisco NX-OS enables new characteristics, enhancements, and problem fixes to be transparently built-in into the software package. These updated photographs can then be set up without having disruption using Cisco ISSU. • Method survivability: Vital processes are operate in secured memory room and independently of every other and the kernel, delivering detailed service isolation and fault containment and enabling modular patching and upgrading and swift restartability. Specific procedures can be restarted independently devoid of loss of state data and without impacting knowledge forwarding, so that immediately after an improve or failure, procedures restart in milliseconds devoid of negatively affecting adjacent units or solutions. Processes with huge quantities of state these kinds of as IP routing protocols are restarted using expectations-dependent nonstop forwarding (NSF) sleek restart mechanisms other procedures use a community persistent storage support (PSS) to maintain their state. • Stateful supervisor failover: Redundant supervisors are kept synchronized at all periods to make it possible for fast stateful supervisor failover. Refined checks are in location to assist guarantee that the state is reliable and dependable through the entire distributed architecture soon after failover takes place. • Trusted interprocess communication: Cisco NX-OS facilitates dependable communication involving procedures to help make sure that all messages are delivered and effectively acted on for the duration of failure and adverse circumstances. This communication aids assure process synchronization and state consistency across processes that might be instantiated on processors distributed over multiple 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 amongst management and I/O module processors. • Network-dependent availability: Community convergence is optimized by giving applications and features to make equally failover and fallback clear and quickly. For instance, Cisco NX-OS offers Spanning Tree Protocol enhancements these as Bridge Protocol Knowledge Unit (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to support make sure the well being of the Spanning Tree Protocol management plane Unidirectional Website link Detection (UDLD) Protocol NSF graceful restart of routing protocols millisecond timers for First-Hop Resiliency Protocol (FHRP) Shortest-Path 1st (SPF) optimizations such as backlink-state ad (LSA) pacing and incremental SPF IEEE 802.3ad link aggregation with adjustable timers and Bidirectional Forwarding Detection (BFD). Serviceability • Troubleshooting and diagnostics: Cisco NX-OS is developed with one of a kind serviceability functions to enable network operators to take earlier action centered on network developments and functions, boosting network arranging and improving community operations middle (NOC) and vendor reaction instances. Clever Simply call House, Cisco Generic On the internet Diagnostics (GOLD), and Cisco Embedded Occasion Supervisor (EEM) are some of the functions that boost the serviceability of Cisco NX-OS. • Switched Port Analyzer (SPAN): The SPAN function will allow an administrator to evaluate all targeted traffic amongst ports (known as the SPAN supply ports) by nonintrusively directing the SPAN session traffic to a SPAN location port that has an exterior analyzer connected to it. Encapsulated Remote SPAN (ERSPAN) enables remote monitoring of many switches across the network by encapsulating SPAN visitors into a generic routing encapsulation (GRE) tunnel. • Ethanalyzer: Cisco NX-OS contains a created-in packet analyzer to monitor and troubleshoot manage- and data-airplane website traffic. The packet analyzer is primarily based on the popular Wireshark open up supply network protocol analyzer. • Smart Get in touch with Property: The Intelligent Get in touch with Residence attribute constantly monitors components and application parts to provide email-based mostly notification of crucial process occasions. A adaptable selection of concept formats is readily available for optimal compatibility with pager providers, common email, and XML-based mostly automatic parsing purposes. It presents inform grouping capabilities and customizable spot profiles. This characteristic can be used, for illustration, to directly page a community support engineer, ship an electronic mail message to a NOC, and utilize Cisco AutoNotify expert services to straight create a instance with the Cisco Technical Help Middle (TAC). This characteristic is a action towards autonomous process operation, enabling networking gadgets to inform IT when a problem happens and assisting guarantee that the difficulty is acted on quickly, reducing time to resolution and growing method uptime. • Cisco GOLD: Cisco GOLD is a suite of diagnostic amenities to validate that components and inner facts paths are functioning as designed. Boot-time diagnostics, steady monitoring, standby fabric loopback checks, and on-need and scheduled assessments are aspect of the Cisco GOLD attribute set. This sector-major diagnostics subsystem will allow speedy fault isolation and continuous method monitoring vital in today's continually operating environments. • Cisco EEM: Cisco EEM is a highly effective device and process management technological innovation built-in into Cisco NX-OS. Cisco EEM assists customers harness the community intelligence intrinsic to the Cisco computer software and permits them to customize habits primarily based on community events as they take place. • Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Variations five and 9 exports as effectively as the Adaptable NetFlow configuration design and components-based Sampled NetFlow for increased scalability. In addition to Layer 3 NetFlow, Layer two NetFlow is supported.416120812