300-115 exam Dumps Source : Implementing Cisco IP Switched Networks (SWITCH v2.0)
Test Code : 300-115
Test name : Implementing Cisco IP Switched Networks (SWITCH v2.0)
Vendor name : Cisco
: 332 real Questions
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The enforcing Cisco IP Switched Networks (switch 300-one hundred fifteen) exam is hypothetical for candidates who wish to certify their switching scholarship and talents. Candidates should be able to plan, configure, and determine the implementation of advanced commercial enterprise Cisco switching options that expend the Cisco enterprise Campus architecture.
imposing Cisco IP Switched Networks (swap 300-a hundred and fifteen) is required for Cisco’s CCNP Routing and Switching and CCDP certifications.
This test includes 174 questions and covers the following pursuits:
This test includes references to here media:
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KT agency, Korea’s largest telecommunications carrier issuer reestablished in 1981 under the Telecommunications company Act, is leading the era of improvements on earth’s most linked nation. The enterprise leads the 4th industrial revolution with elevated velocity wire/instant community and resourceful ICT know-how. For ongoing information, gratify proceed to https://corp.kt.com/eng/
About CiscoCisco (NASDAQ: CSCO) is the international chief in IT that helps groups seize the opportunities of the following day by using proving that mind-blowing issues can occur if you chance to connect the previously unconnected. For ongoing news, gratify proceed to http://thenetwork.cisco.com.
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Every time you proceed to an office to work or proceed to class at school, college, or university, you will expend a campus network to access critical applications, tools, the Internet, and so on over wired or wireless connections. Often, you may even gain access by using a portable device such as an Apple iPhone connected on a corporate Wi-Fi to achieve applications such as e-mail, calendaring, or instant messaging over a campus network. Therefore, the persons liable for edifice this network requisite to deploy sound fundamentals and design principles for the campus networks to function adequately and provide the necessary stability, scalability, and resiliency necessary to sustain interconnectivity with a 100 percent uptime.
This chapter begins the journey of exploring campus network design fundamentals by focusing on a few core concepts around network design and structure and a few details about the architecture of Cisco switches. This is useful scholarship when designing and edifice campus networks. Specifically, this chapter focuses on the following two high-level topics:
A campus network describes the portion of an enterprise infrastructure that interconnects finish devices such as computers, laptops, and wireless access points to services such as intranet resources or the Internet. Intranet resources may be company web pages, muster focus applications, file and print services, and almost anything finish users connect to from their computer.
In different terms, the campus network provides for connectivity to company applications and tools that reside in a data focus for finish users. Originally, prior to around 2005, the term campus network and its architectures were germane for application server farms and computing infrastructure as well. Today, the infrastructure that interconnects server farms, application servers, and computing nodes are clearly distinguished from campus networks and referred to as data centers.
Over the past few years, data focus architectures believe become more knotty and require sophistication not required in the campus network due to high-availability, low-latency, and high-performance requirements. Therefore, data centers may expend bleeding-edge technologies that are not institute in the campus network, such as FabricPath, VXLAN, and Application Centric Infrastructure (ACI). For the purpose of CCNP Switch at the time of this writing, these technologies, as well as data focus architectures, are out of scope. Nevertheless, they will point out some of the differences as to avoid any confusion with campus network fundamentals.
The next subsection describes the hierarchical network design with the following subsections breaking down the components of the hierarchical design in detail.Hierarchical Network Design
A flat enterprise campus network is where every PCs, servers, and printers are connected to each other using Layer 2 switches. A flat network does not expend subnets for any design purposes. In addition, every devices on this subnet are in the identical broadcast domain, and broadcasts will be flooded to every attached network devices. Because a broadcast packet received by an finish device, such as tablet or PC, uses compute and I/O resources, broadcasts will waste available bandwidth and resources. In a network size of ten devices on the identical flat network, this is not a significant issue; however, in a network of thousands of devices, this is a significant waste of resources and bandwidth (see design 2-1).
Figure 2-1 Flat Versus Hierarchical Network Design
As a result of these broadcast issues and many other limitations, flat networks accomplish not scale to meet the needs of most enterprise networks or of many tiny and medium-size businesses. To address the sizing needs of most campus networks, a hierarchical model is used. design 2-2 illustrates, at a elevated level, a hierarchical view of campus network design versus a flat network.
Hierarchical models for network design allow you to design any networks in layers. To understand the consequence of layering, reckon the OSI reference model, which is a layered model for understanding and implementing computer communications. By using layers, the OSI model simplifies the task that is required for two computers to communicate. Leveraging the hierarchical model moreover simplifies campus network design by allowing focus at different layers that build on each other.
Referring to design 2-2, the layers of the hierarchical model are divided into specific functions categorized as core, distribution, and access layers. This categorization provides for modular and resilient design, with the aptitude to grow and scale the design without major modifications or reworks.
For example, adding a unusual wing to your office edifice may be as simple as adding a unusual distribution layer with an access layer while adding capacity to the core layer. The existing design will wait intact, and only the additions are needed. Aside from the simple physical additions, configuration of the switches and routes is relatively simple because most of the configuration principles around hierarchy were in plot during the original design.
By definition, the access, distribution, and core layer adhere to the following characteristics:
The next subsections of this chapter report the access layer, distribution layer, and core layer in more detail.Access Layer
The access layer, as illustrated in design 2-3, describes the analytic grouping of the switches that interconnect finish devices such as PCs, printers, cameras, and so on. It is moreover the plot where devices that extend the network out one more even are attached. Two such prime examples are IP phones and wireless APs, both of which extend the connectivity out one more layer from the actual campus access switch.
The wide variety of feasible types of devices that can connect and the various services and dynamic configuration mechanisms that are necessary Make the access layer one of the most capable parts of the campus network. These capabilities are as follows:
The next subsection discusses the upstream layer from the access layer, the distribution layer.Distribution Layer
The distribution layer in the campus design has a unique role in which it acts as a services and control frontier between the access layer and the core. Both the access layer and the core are essentially dedicated special-purpose layers. The access layer is dedicated to meeting the functions of end-device connectivity, and the core layer is dedicated to providing nonstop connectivity across the entire campus network. The distribution layer, in contrast, serves multiple purposes. design 2-4 references the distribution layer.
Availability, snappily path recovery, load balancing, and QoS are every vital considerations at the distribution layer. Generally, elevated availability is provided through Layer 3 redundant paths from the distribution layer to the core, and either Layer 2 or Layer 3 redundant paths from the access layer to the distribution layer. retain in reason that Layer 3 equal-cost load sharing allows both uplinks from the distribution to the core layer to be used for traffic in a variety of load-balancing methods discussed later in this chapter.
With a Layer 2 design in the access layer, the distribution layer generally serves as a routing frontier between the access and core layer by terminating VLANs. The distribution layer often represents a redistribution point between routing domains or the demarcation between static and dynamic routing protocols. The distribution layer may perform tasks such as controlled routing decision making and filtering to implement policy-based connectivity, security, and QoS. These features allow for tighter control of traffic through the campus network.
To improve routing protocol performance further, the distribution layer is generally designed to summarize routes from the access layer. If Layer 3 routing is extended to the access layer, the distribution layer generally offers a default route to access layer switching while leveraging dynamic routing protocols when communicating with core routers.
In addition, the distribution layer optionally provides default gateway redundancy by using a first-hop routing protocol (FHRP) such as Host Standby Routing Protocol (HSRP), Gateway Load Balancing Protocol (GLBP), or Virtual Router Redundancy Protocol (VRRP). FHRPs provide redundancy and elevated availability for the first-hop default gateway of devices connected downstream on the access layer. In designs that leverage Layer 3 routing in the access layer, FHRP might not be applicable or may require a different design.
In summary, the distribution layer performs the following functions when Layer 3 routing is not configured in the access layer:
The core layer, as illustrated in design 2-5, is the backbone for campus connectivity, and is the aggregation point for the other layers and modules of an enterprise network. The core must provide a elevated even of redundancy and adjust to changes quickly.
From a design point-of-view, the campus core is in some ways the simplest yet most critical piece of the campus. It provides a limited set of services and is designed to be highly available and requires 100 percent uptime. In big enterprises, the core of the network must operate as a nonstop, always-available service. The key design objectives for the campus core are based on providing the usurp even of redundancy to allow for near-immediate data-flow recovery in the event of the failure of any component (switch, supervisor, line card, or fiber interconnect, power, and so on). The network design must moreover permit the occasional, but necessary, hardware and software upgrade or change to be made without disrupting any network applications. The core of the network should not implement any knotty policy services, nor should it believe any directly attached user or server connections. The core should moreover believe the minimal control plane configuration that is combined with highly available devices that are configured with the amend amount of physical redundancy to provide for this nonstop service capability. design 2-6 illustrates a big campus network interconnected by the core layer (campus backbone) to the data center.
From an enterprise architecture point-of-view, the campus core is the backbone that binds together every the elements of the campus architecture to include the WAN, the data center, and so on. In other words, the core layer is the piece of the network that provides for connectivity between finish devices, computing, and data storage services that are located within the data center, in addition to other areas and services within the network.
Figure 2-7 illustrates an example of the core layer interconnected with other parts of the enterprise network. In this example, the core layer interconnects with a data focus and edge distribution module to interconnect WAN, remote access, and the Internet. The network module operates out of troupe from the network but is noiseless a critical component.
Figure 2-7 Core Layer Interconnecting with the Enterprise Network
In summary, the core layer is described as follows:
As switch products become more commoditized, the cost of Layer 3 switches has diminished significantly. Because of the reduced cost and a few inherit benefits, Layer 3 switching in the access layer has become more common over typical Layer 2 switching in the access layer. Using Layer 3 switching or traditional Layer 2 switching in the access layer has benefits and drawbacks. design 2-8 illustrates the comparison of Layer 2 from the access layer to the distribution layer with Layer 3 from the access layer to the distribution layer.
As discussed in later chapters, deploying a Layer 2 switching design in the access layer may result in suboptimal usage of links between the access and distribution layer. In addition, this routine does not scale as well in very big numbers because of the size of the Layer 2 domain.
Using a design that leverages Layer 3 switching to the access layer VLANs scales better than Layer 2 switching designs because VLANs accept terminated on the access layer devices. Specifically, the links between the distribution and access layer switches are routed links; every access and distribution devices would participate in the routing scheme.
The Layer 2-only access design is a traditional, slightly cheaper solution, but it suffers from optimal expend of links between access and distribution due to spanning tree. Layer 3 designs introduce the challenge of how to separate traffic. (For example, guest traffic should wait separated from intranet traffic.) Layer 3 designs moreover require careful planning with respect to IP addressing. A VLAN on one Layer 3 access device cannot be on another access layer switch in a different piece of your network because each VLAN is globally significant. Traditionally, mobility of devices is limited in the campus network of the enterprise in Layer 3 access layer networks. without using an advanced mobility networking features.
In summary, campus networks with Layer 3 in the access layer are becoming more popular. Moreover, next-generation architectures will alleviate the biggest problem with Layer 3 routing in the access layer: mobility.
The next subsection of this chapter applies the hierarchical model to an enterprise architecture.The Cisco Enterprise Campus Architecture
The Cisco enterprise campus architecture refers to the traditional hierarchical campus network applied to the network design, as illustrated in design 2-9.
The Cisco enterprise campus architecture divides the enterprise network into physical, logical, and functional areas while leveraging the hierarchical design. These areas allow network designers and engineers to associate specific network functionality on gear that is based on its placement and function in the model.
Note that although the tiers accomplish believe specific roles in the design, no absolute rules apply to how a campus network is physically built. Although it is True that many campus networks are constructed by three physical tiers of switches, this is not a strict requirement. In a smaller campus, the network might believe two tiers of switches in which the core and distribution elements are combined in one physical switch: a collapsed distribution and core. However, a network may believe four or more physical tiers of switches because the scale, wiring plant, or physical geography of the network might require that the core be extended.
The hierarchy of the network often defines the physical topology of the switches, but they are not the identical thing. The key principle of the hierarchical design is that each component in the hierarchy has a specific set of functions and services that it offers and a specific role to play in the design.
In reference to CCNP Switch, the access layer, the distribution layer, and core layer may be referred to as the edifice access layer, the edifice distribution layer, and the edifice core layer. The term edifice implies but does not circumscribe the context of layers as physical buildings. As mentioned previously, the physical demarcation does not believe to be a building; it can be a floor, group of floors, wiring closets, and so on. This book will solely expend the terms access layer, distribution layer, and core layer for simplicity.
In summary, network architects build Cisco enterprise campus networks by leveraging the hierarchical model and dividing the layers by some physical or analytic barrier. Although campus network designs proceed much further beyond the basic structure, the key takeaway of this section is that the access, distribution, and core layers are applied to either physical or analytic barriers.The requisite for a Core Layer
When first studying campus network design, persons often question the requisite for a core layer. In a campus network contained with a few buildings or a similar physical infrastructure, collapsing the core into the distribution layer switches may rescue on initial cost because an entire layer of switches is not needed. design 2-10 shows a network design example where the core layer has been collapsed into the distribution layer by fully meshing the four distinct physical buildings.
Despite a feasible lower cost to the initial build, this design is difficult to scale. In addition, cabling requirements increase dramatically with each unusual edifice because of the requisite for full-mesh connectivity to every the distribution switches. The routing complexity moreover increases as unusual buildings are added because additional routing peers are needed.
With admiration to design 2-10, the distribution module in the second edifice of two interconnected switches requires four additional links for full-mesh connectivity to the first module. A third distribution module to support the third edifice would require 8 additional links to support the connections to every the distribution switches, or a total of 12 links. A fourth module supporting the fourth edifice would require 12 unusual links for a total of 24 links between the distribution switches.
As illustrated in design 2-11, having a dedicated core layer allows the campus to accommodate growth without requiring full-mesh connectivity between the distribution layers. This is particularly vital as the size of the campus grows either in number of distribution blocks, geographical area, or complexity. In a larger, more knotty campus, the core provides the capacity and scaling capability for the campus as a entire and may house additional services such as security features.
The question of when a separate physical core is necessary depends on multiple factors. The aptitude of a distinct core to allow the campus network to resolve physical design challenges is important. However, bethink that a key purpose of having a distinct campus core is to provide scalability and to minimize the risk from (and simplify) moves, adds, and changes in the campus network. In general, a network that requires routine configuration changes to the core devices does not yet believe the usurp degree of design modularization. As the network increases in size or complexity and changes begin to palpate the core devices, it often points out design reasons for physically separating the core and distribution functions into different physical devices.
In brief, although design networks without a core layer may work at tiny scale, medium-sized to enterprise-sized networks, they require a core layer for design modularization and scalability.
In conclusion of the hierarchical model presented in this section, despite its age, the hierarchical model is noiseless germane to campus network designs. For review, the layers are described as follows:
The next section delves into a major edifice obscure of the campus network: the Cisco switch itself.
Now fully updated for the unusual Cisco SWITCH 300-115 exam, Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning pilot is your Cisco (R) authorized learning utensil for CCNP (R) or CCDP (R) preparation. piece of the Cisco Press Foundation Learning Series, it teaches you how to plan, configure, verify, secure, and maintain knotty enterprise switching solutions using Cisco ferment (R) switches and Enterprise Campus Architecture.
The authors show you how to build scalable multilayer switched networks, create and deploy global intranets, and perform basic troubleshooting in environments using Cisco multilayer switches for client hosts and services. They begin by reviewing basic switching concepts, network design, and campus network architecture. Next, they present in-depth coverage of spanning-tree, inter-VLAN routing, first-hop redundancy, network management, advanced switch features, elevated availability, and campus network security.
Each chapter opens with a list of topics that clearly identify its focus. Each chapter ends with a summary of key concepts for quick study, as well as review questions to assess and reinforce your understanding. Throughout, configuration examples, and sample verification outputs illustrate critical issues in network operation and troubleshooting.
This pilot is exemplar for every certification candidates who want to master every the topics covered on the SWITCH 300-115 exam.
Serves as the official textbook for version 7 of the Cisco Networking Academy CCNP SWITCH course
Covers basic switching terminology and concepts, and the unique features of Cisco ferment switch designs
Reviews campus network design, including network structure, roles of Cisco ferment switches, and differences between Layer 2 and multilayer switches
Introduces VLANs, VTP, Trunking, and port-channeling
Explains Spanning Tree Protocol configuration
Presents concepts and modern best practices for interVLAN routing
Covers first-hop redundancy protocols used by Cisco ferment switches
Outlines a holistic approach to network management and Cisco ferment device security with AAA, NTP, 802.1x, and SNMP
Describes how to expend advanced features to improve campus network resiliency and availability
Shows how to establish switch physical redundancy using Stackwise, VSS, or redundant supervisors
Explains advanced security features
Related Resources: Books Training Practice_Exams
Skill Level: Intermediate Status: Active
Low Cost: $600 (shortest track)
Summary:For individuals who believe at least one year of networking flavor and are ready to promote their skills and work independently on knotty network solutions. CCNPs plan, implement, verify and troubleshoot local and wide-area enterprise networks and work collaboratively with specialists on advanced security, voice, wireless and video solutions.
Initial Requirements:You must first hold a cogent CCNA or any CCIE designation. Then you must pass three exams: Implementing Cisco IP Routing (ROUTE), Implementing Cisco IP Switched Networks (SWITCH), and Troubleshooting and Maintaining Cisco IP Networks (TSHOOT). Exams are 2 hours and $200 each.
There are additional CCNP certifications available for specialized tracks such as wireless, data center, and security. For the replete list of current CCNP titles, supervene the "See every Cisco Certifications" link near the bottom of this page.
Continuing Requirements:Cisco professional even certifications are cogent for three years. To recertify, pass ONE of the following before the certification expiration date:
CCNP Pay Chart:
See every Cisco Certifications
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