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última version al 10:37 17 abr 2012
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Overall flexibility and Scalability • Software compatibility: Cisco NX-OS interoperates with Cisco solutions working any variant of the Cisco IOS Software program functioning technique. It also interoperates with any networking OS that conforms to the networking criteria listed as supported in this facts sheet. • Widespread software program through the info middle: Cisco NX-OS simplifies the knowledge heart working setting and gives a unified OS made to run all places of the facts center community, such as storage, virtualization, and Layer 3 network protocols. • Modular computer software style and design: Cisco NX-OS is designed to assistance dispersed multithreaded processing on symmetric multiprocessors (SMPs), multicore CPUs, and dispersed line-card processors. Computationally intensive jobs, this kind of as hardware desk programming, can be offloaded to dedicated processors distributed across the line cards. Cisco NX-OS modular procedures are instantiated on desire, each in a separate safeguarded memory area. Consequently, processes are started and technique methods allocated only when a characteristic is enabled. The modular procedures are ruled by a authentic-time preemptive scheduler that assists make certain the timely processing of vital capabilities. • Digital device contexts (VDCs): Cisco NX-OS gives the capacity to phase OS and components resources into virtual contexts that emulate digital products. Each and every VDC has its personal software package processes, focused components means (bodily interfaces, VLANs, routing table size, Digital Route Forwarding [VRF], and so forth.), and independent administration natural environment. VDCs are instrumental in the consolidation of independent networks onto a prevalent infrastructure, retaining the administrative boundary separation and fault-isolation qualities of bodily separate networks even though giving many of the operating expense rewards of a solitary infrastructure. Just about every VDC can be restarted without having impacting the control, info, or administration plane of other VDCs in the method. • Aid 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. Mainly because it is a logical extension of its mother or father switch, the Cisco Nexus Fabric Extender inherits the features and advantages provided by the Cisco Nexus 7000 Series. The mixture of the Cisco Nexus 2000 Series Fabric Extenders and Cisco Nexus 7000 Series Switches combines the added benefits of top-of-rack (ToR) and conclusion-of-row (EoR) network architectures, enabling facts centers to scale the range of Gigabit Ethernet accessibility ports, minimizing cable runs, and minimizing management factors in the network. Availability • Continuous method operation: Cisco NX-OS gives ongoing technique operation, permitting maintenance, upgrades, and computer software certification without provider interruption. The mixture of approach modularity, hitless In-Support Software package Up grade (ISSU) ability, and stateful sleek restart mitigates the outcomes of computer software upgrades and other functions. • Hitless ISSU: Hitless ISSU delivers the capability to complete transparent computer software upgrades on platforms with redundant supervisors, lowering downtime and enabling buyers to integrate the most recent capabilities and features with minor or no unfavorable effect on community operation. • Easy enhancement of enhancements and dilemma fixes: The modularity of Cisco NX-OS makes it possible for new functions, enhancements, and dilemma fixes to be transparently integrated into the software program. These up-to-date images can then be mounted with out disruption utilizing Cisco ISSU. • Procedure survivability: Crucial processes are run in shielded memory room and independently of each other and the kernel, offering specific service isolation and fault containment and enabling modular patching and upgrading and speedy restartability. Individual processes can be restarted independently with out reduction of state details and with no impacting data forwarding, so that right after an upgrade or failure, procedures restart in milliseconds with no negatively impacting adjacent units or solutions. Processes with large amounts of state these kinds of as IP routing protocols are restarted utilizing specifications-based nonstop forwarding (NSF) sleek restart mechanisms other procedures use a nearby persistent storage provider (PSS) to maintain their state. • Stateful supervisor failover: Redundant supervisors are kept synchronized at all moments to enable rapid stateful supervisor failover. Complex checks are in put to assist guarantee that the state is reliable and dependable through the complete distributed architecture following failover takes place. • Trusted interprocess communication: Cisco NX-OS facilitates reliable communication among procedures to assist guarantee that all messages are sent and effectively acted on through failure and adverse conditions. This communication assists guarantee course of action synchronization and state consistency throughout procedures that could be instantiated on processors dispersed about many 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 in between handle and I/O module processors. • Network-based availability: Community convergence is optimized by offering tools and functions to make equally failover and fallback clear and rapid. For illustration, Cisco NX-OS provides Spanning Tree Protocol enhancements these kinds of as Bridge Protocol Information Unit (BPDU) guard, loop guard, root guard, BPDU filters, and bridge assurance to assist guarantee the well being of the Spanning Tree Protocol handle aircraft Unidirectional Hyperlink Detection (UDLD) Protocol NSF graceful restart of routing protocols millisecond timers for First-Hop Resiliency Protocol (FHRP) Shortest-Path First (SPF) optimizations this kind of as backlink-state advertisement (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 created with exclusive serviceability features to permit community operators to get earlier action dependent on community developments and occasions, boosting network preparing and strengthening community operations middle (NOC) and vendor response occasions. Intelligent Get in touch with Home, Cisco Generic On-line Diagnostics (GOLD), and Cisco Embedded Celebration Manager (EEM) are some of the capabilities that enrich the serviceability of Cisco NX-OS. • Switched Port Analyzer (SPAN): The SPAN element allows an administrator to examine all visitors involving ports (identified as the SPAN source ports) by nonintrusively directing the SPAN session visitors to a SPAN spot port that has an external analyzer hooked up to it. Encapsulated Remote SPAN (ERSPAN) permits remote monitoring of a number of switches throughout the community by encapsulating SPAN traffic into a generic routing encapsulation (GRE) tunnel. • Ethanalyzer: Cisco NX-OS consists of a created-in packet analyzer to watch and troubleshoot management- and knowledge-aircraft traffic. The packet analyzer is based on the preferred Wireshark open up supply network protocol analyzer. • Intelligent Contact Property: The Intelligent Simply call Residence element repeatedly monitors hardware and software package parts to provide e-mail-centered notification of critical program gatherings. A flexible variety of message formats is available for optimal compatibility with pager solutions, regular email, and XML-based automated parsing applications. It gives inform grouping capabilities and customizable location profiles. This feature can be used, for instance, to immediately web page a community help engineer, send an electronic mail concept to a NOC, and employ Cisco AutoNotify services to straight make a situation with the Cisco Technical Aid Heart (TAC). This function is a action toward autonomous method operation, enabling networking devices to inform IT when a problem occurs and aiding assure that the dilemma is acted on swiftly, minimizing time to resolution and rising program uptime. • Cisco GOLD: Cisco GOLD is a suite of diagnostic amenities to verify that hardware and internal information paths are working as intended. Boot-time diagnostics, continuous monitoring, standby fabric loopback exams, and on-demand and scheduled tests are part of the Cisco GOLD feature established. This industry-foremost diagnostics subsystem permits swift fault isolation and steady system monitoring crucial in today's continually operating environments. • Cisco EEM: Cisco EEM is a powerful device and process management technology built-in into Cisco NX-OS. Cisco EEM will help prospects harness the network intelligence intrinsic to the Cisco software program and allows them to customise habits primarily based on community gatherings as they happen. • Cisco NetFlow: The Cisco NX-OS implementation of NetFlow supports Versions 5 and 9 exports as well as the Flexible NetFlow configuration product and hardware-primarily based Sampled NetFlow for enhanced scalability. In addition to Layer 3 NetFlow, Layer 2 NetFlow is supported.416120812
