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última version al 18:05 17 abr 2012

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Versatility and Scalability • Software compatibility: Cisco NX-OS interoperates with Cisco products managing any variant of the Cisco IOS Software running method. It also interoperates with any networking OS that conforms to the networking standards listed as supported in this data sheet. • Common software package all through the info middle: Cisco NX-OS simplifies the knowledge middle working setting and supplies a unified OS created to run all areas of the facts middle community, which includes storage, virtualization, and Layer three network protocols. • Modular software program style and design: Cisco NX-OS is intended to assist dispersed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and dispersed line-card processors. Computationally intensive responsibilities, this kind of as hardware desk programming, can be offloaded to dedicated processors distributed across the line cards. Cisco NX-OS modular processes are instantiated on need, each in a individual shielded memory area. Hence, processes are started out and process assets allocated only when a attribute is enabled. The modular processes are governed by a actual-time preemptive scheduler that assists make sure the timely processing of essential capabilities. • Digital gadget contexts (VDCs): Cisco NX-OS provides the capability to section OS and components methods into virtual contexts that emulate virtual gadgets. Each and every VDC has its very own software program procedures, committed components means (bodily interfaces, VLANs, routing desk measurement, Virtual Route Forwarding [VRF], and many others.), and unbiased management environment. VDCs are instrumental in the consolidation of separate networks onto a typical infrastructure, retaining the administrative boundary separation and fault-isolation features of physically individual networks even though delivering numerous of the running cost added benefits of a one infrastructure. Each and every VDC can be restarted without having affecting the management, info, or administration plane of other VDCs in the system. • Assistance 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. Simply because it is a rational extension of its father or mother switch, the Cisco Nexus Fabric Extender inherits the features and rewards made available by the Cisco Nexus 7000 Series. The mixture of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches combines the rewards of prime-of-rack (ToR) and conclusion-of-row (EoR) network architectures, enabling knowledge facilities to scale the amount of Gigabit Ethernet access ports, cutting down cable runs, and minimizing conduite details in the network. Availability • Steady program operation: Cisco NX-OS offers constant technique operation, permitting routine maintenance, upgrades, and software package certification with out support interruption. The combination of process modularity, hitless In-Support Software package Improve (ISSU) ability, and stateful sleek restart mitigates the effects of software upgrades and other functions. • Hitless ISSU: Hitless ISSU delivers the ability to complete clear software package upgrades on platforms with redundant supervisors, cutting down downtime and making it possible for clients to integrate the latest characteristics and functions with small or no adverse result on community operation. • Sleek development of enhancements and problem fixes: The modularity of Cisco NX-OS will allow new capabilities, enhancements, and dilemma fixes to be transparently built-in into the application. These up-to-date photographs can then be mounted without disruption using Cisco ISSU. • Process survivability: Vital procedures are operate in shielded memory house and independently of every single other and the kernel, giving specific support isolation and fault containment and enabling modular patching and upgrading and speedy restartability. Specific processes can be restarted independently with out decline of state facts and devoid of impacting facts forwarding, so that after an improve or failure, processes restart in milliseconds with out negatively affecting adjacent devices or expert services. Processes with massive quantities of state such as IP routing protocols are restarted working with criteria-dependent nonstop forwarding (NSF) graceful restart mechanisms other processes use a community persistent storage provider (PSS) to keep their state. • Stateful supervisor failover: Redundant supervisors are kept synchronized at all moments to make it possible for rapid stateful supervisor failover. Sophisticated checks are in put to aid make sure that the state is steady and dependable through the entire dispersed architecture soon after failover occurs. • Reliable interprocess communication: Cisco NX-OS facilitates trustworthy communication amongst processes to support make certain that all messages are delivered and appropriately acted on through failure and adverse conditions. This communication will help guarantee method synchronization and state consistency across processes that may be instantiated on processors distributed over numerous 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 control and I/O module processors. • Community-based mostly availability: Community convergence is optimized by offering applications and functions to make both equally failover and fallback clear and rapidly. For instance, Cisco NX-OS delivers Spanning Tree Protocol enhancements these as Bridge Protocol Info Device (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to aid guarantee the health of the Spanning Tree Protocol control plane Unidirectional Link Detection (UDLD) Protocol NSF graceful restart of routing protocols millisecond timers for Initially-Hop Resiliency Protocol (FHRP) Shortest-Path First (SPF) optimizations such as link-state advertisement (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 created with one of a kind serviceability features to permit network operators to have earlier action based mostly on network developments and gatherings, boosting network organizing and enhancing community functions middle (NOC) and vendor reaction moments. Wise Call Home, Cisco Generic On-line Diagnostics (GOLD), and Cisco Embedded Celebration Manager (EEM) are some of the attributes that enhance the serviceability of Cisco NX-OS. • Switched Port Analyzer (SPAN): The SPAN attribute enables an administrator to review all traffic involving ports (known as the SPAN resource ports) by nonintrusively directing the SPAN session website traffic to a SPAN vacation spot port that has an exterior analyzer connected to it. Encapsulated Remote SPAN (ERSPAN) will allow remote monitoring of numerous switches across the community by encapsulating SPAN targeted traffic into a generic routing encapsulation (GRE) tunnel. • Ethanalyzer: Cisco NX-OS consists of a developed-in packet analyzer to monitor and troubleshoot handle- and facts-aircraft site visitors. The packet analyzer is based mostly on the preferred Wireshark open up source community protocol analyzer. • Intelligent Call Home: The Clever Simply call Home attribute continually screens components and software package parts to give e-mail-based notification of important process functions. A flexible variety of message formats is obtainable for ideal compatibility with pager providers, standard email, and XML-primarily based automated parsing purposes. It provides alert grouping capabilities and customizable destination profiles. This element can be utilised, for instance, to right webpage a community support engineer, deliver an email message to a NOC, and utilize Cisco AutoNotify companies to straight crank out a scenario with the Cisco Technical Help Middle (TAC). This attribute is a step toward autonomous process operation, enabling networking units to inform IT when a challenge occurs and supporting guarantee that the dilemma is acted on promptly, lowering time to resolution and raising method uptime. • Cisco GOLD: Cisco GOLD is a suite of diagnostic amenities to confirm that components and inside knowledge paths are running as designed. Boot-time diagnostics, continuous monitoring, standby fabric loopback checks, and on-demand and scheduled checks are part of the Cisco GOLD characteristic set. This sector-foremost diagnostics subsystem enables quick fault isolation and ongoing method monitoring essential in today's continuously operating environments. • Cisco EEM: Cisco EEM is a powerful device and program management technology integrated into Cisco NX-OS. Cisco EEM assists clients harness the community intelligence intrinsic to the Cisco software program and permits them to customise behavior based mostly on network functions as they come about. • Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Variations 5 and 9 exports as very well as the Flexible NetFlow configuration design and hardware-dependent Sampled NetFlow for increased scalability. In addition to Layer three NetFlow, Layer 2 NetFlow is supported.416120812