Scalable Network Design BSCI Module Lesson - INN, SONA and the ECNM BSCI © 2008 Cisco Systems, Inc All rights reserved Cisco Confidential CCNP – BSCI Bachkhoa Networking Academy Objectives Define IIN and Cisco SONA frameworks Describe the Cisco Enterprise Architecture and how it maps to the traditional three-layer hierarchical network model Describe the devices in a nonhierarchical network Identify problems that can occur in a nonhierarchical switched network Identify problems that can occur in a nonhierarchical routed network Define multilayer switches in a nonhierarchical network List the issues that occur with multilayer switches and VLANs in a nonhierarchical network Describe the Enterprise Composite module, which can be used to divide the enterprise network into physical, logical, and functional boundaries List the benefits of the ECNM Describe the Campus Infrastructure module of the ECNM BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy Technological Revolution Cycles BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy Intelligent Information Network Issue of Enterprise: –Vital networked resources, applications, and information assets remain largely unlinked, despite a large investment in IT resources –In fact, it is not uncommon for organizations to have hundreds of ―siloed‖ applications and databases that cannot communicate with each other For example, sales applications and databases cannot be accessed easily by customer service or purchasing departments without creating different overlay networks that join applications and information The result is an inability to share information efficiently across the organization Integrating intelligence into the network involves aligning network and business requirements To accommodate today’s and tomorrow’s network requirements, the Cisco vision of the future includes the Intelligent Information Network (IIN), a strategy that addresses how the network is integrated with businesses BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy Intelligent Information Network features: Integration of networked resources and information assets that have been largely unlinked: The modern converged networks with integrated voice, video, and data require that IT departments (and other departments traditionally responsible for other technologies) more closely link the IT infrastructure with the network Intelligence across multiple products and infrastructure layers: The intelligence built in to each component of the network is extended networkwide and applies end-to-end Active participation of the network in the delivery of services and applications: With added intelligence, it is possible for the network to actively manage, monitor, and optimize service and application delivery across the entire IT environment BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy BUILDING AN INTELLIGENT NETWORK The Intelligent Information Network distinguishes Cisco architecturally from its competitors This technology vision offers an evolutionary approach that consists of three phases in which functionality can be added to the infrastructure as required: PHASE 1—Integrated Transport –Everything—data, voice, and video—consolidates onto an IP network for secure network convergence –By integrating data, voice, and video transport onto a single, standards-based, modular network, organizations can simplify network management and generate enterprisewide efficiencies – Network convergence also lays the foundation for a new class of IP-enabled applications delivered through Cisco IP Communications solutions BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy BUILDING AN INTELLIGENT NETWORK PHASE 2—Integrated Services – Once the network infrastructure has been converged, IT resources can be pooled and shared or ―virtualized‖ to flexibly address the changing needs of the organization –Integrated services help to unify common elements such as storage and data center server capacity –By extending virtualization capabilities to encompass server, storage, and network elements, an organization can transparently use all of its resources more efficiently BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy BUILDING AN INTELLIGENT NETWORK PHASE 3—Integrated Applications –With Application-Oriented Networking (AON) technology, Cisco has entered Phase of building the Intelligent Information Network –This phase focuses on making the network ―application aware‖ so it can optimize application performance and more efficiently deliver networked applications to users –In addition to capabilities such as content caching, load balancing, and application-level security, Cisco AON makes it possible for the network to simplify the application infrastructure by integrating intelligent application message handling, optimization, and security into the existing network BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy BUILDING AN INTELLIGENT NETWORK BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com CCNP – BSCI Bachkhoa Networking Academy Cisco SONA Framework The Cisco SONA is an architectural framework that illustrates how to build integrated systems and guides the evolution of enterprises toward more intelligent networks Using the SONA framework, enterprises can improve flexibility and increase efficiency by optimizing applications, business processes, and resources to enable IT to have a greater effect on business The SONA framework leverages the extensive productline services, proven architectures, and experience of Cisco and its partners to help enterprises achieve their business goals BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 10 CCNP – BSCI Bachkhoa Networking Academy Access layer switches An access layer switch should provide this functionality with low cost and high port density –Catalyst 2950 series –Catalyst 2960 series –Catalyst 2960 series –Catalyst Express 500 series –Catalyst Express 520 series Catalyst Express 500 series BSCI © 2008 Cisco Systems, Inc All rights reserved Catalyst Express 520 series Học viện mạng Bách-Khoa - www.bkacad.com Học viện mạng Bach Khoa Website: www.bkacad.com 32 32 CCNP – BSCI Bachkhoa Networking Academy Enterprise Campus Infrastructure Distribution Layer BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách-Khoa - www.bkacad.com Học viện mạng Bach Khoa Website: www.bkacad.com 33 33 CCNP – BSCI Bachkhoa Networking Academy Distribution Layer The purpose of this layer is to provide a boundary definition in which packet manipulation can take place Networks are segmented into broadcast domains by this layer Policies can be applied and access control lists can filter packets The distribution layer also prevents problems from affecting the core layer Switches in this layer operate at Layer and Layer The distribution layer includes several functions such as the following: –Aggregation of the wiring closet connections –Broadcast/multicast domain definition –Virtual LAN (VLAN) routing BSCI Học viện mạng Bách- occurwww.bkacad.com Học viện mạng Bach Khoa Website: –Any media transitions that need toKhoa - www.bkacad.com © 2008 Cisco Systems, Inc All rights reserved 34 34 CCNP – BSCI Bachkhoa Networking Academy Distribution layer switches 4500 6500 Distribution layer switches are the aggregation points for multiple access layer switches The switch must be able to accommodate the total amount of traffic from the access layer devices The distribution layer combines VLAN traffic and is a focal point for policy decisions about traffic flow For these reasons distribution layer switches operate at both Layer and Layer The following Cisco switches are suitable for the distribution layer: BSCI –Catalyst 3550/3560 series –Catalyst 45 series –Catalyst 6500 series Học viện mạng Bách-Khoa - www.bkacad.com © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bach Khoa Website: www.bkacad.com 35 35 CCNP – BSCI Bachkhoa Networking Academy Enterprise Campus Infrastructure Core Layer BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách-Khoa - www.bkacad.com Học viện mạng Bach Khoa Website: www.bkacad.com 36 36 CCNP – BSCI Bachkhoa Networking Academy Core Layer The core layer is a high-speed switching backbone If they not have an associated router module, an external router is used for the Layer function This layer of the network design should not perform any packet manipulation Packet manipulation, such as access list filtering, would slow down the switching of packets BSCI Providing a core infrastructure with redundant alternate paths gives stability to the networkviện mạngevent of awww.bkacad.com failure Học in the Bách Khoa - single device © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bach Khoa - Website: www.bkacad.com 37 37 CCNP – BSCI Bachkhoa Networking Academy Core Layer Switches 6500 4500 In a network design, the core layer can be a routed, or Layer 3, core Core layer switches are designed to provide efficient Layer functionality when needed Factors such as need, cost, and performance should be considered before a choice is made The following Cisco switches are suitable for the core layer: –Catalyst 4500 and 4500-E series –Catalyst 6500 and 6500-E series BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách-Khoa - www.bkacad.com Học viện mạng Bach Khoa Website: www.bkacad.com 38 38 CCNP – BSCI Bachkhoa Networking Academy Campus Infrastructure Module BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 39 CCNP – BSCI Bachkhoa Networking Academy Activity Research case studies to see how enterprises are making use of the SONA architecture Navigate to www.cisco.com and search on ―SONA Case Studies‖ From the SONA homepage, find the link for case studies Select one of the case studies to read about an application of the SONA approach BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 40 CCNP – BSCI Bachkhoa Networking Academy Self Check Name the layers of the SONA Framework What are the phases in building an Intelligent Information Network? What are the main issues with non-hierarchical network devices? How is the hierarchical model divided? What are the functional areas in the Enterprise Composite Model? BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 41 CCNP – BSCI Bachkhoa Networking Academy Summary The SONA framework guides the evolution of the enterprise network towards IIN Cisco Enterprise Architecture with a hierarchical network model facilitates the deployment of converged networks Nonhierarchical network designs not scale and not provide the required security necessary in a modern topology Layer networks not provide adequate security or hierarchical networking Router-based networks provide greater security and hierarchical networking; however, they can introduce latency issues BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 42 CCNP – BSCI Bachkhoa Networking Academy Summary Multilayer switches combine both Layer and Layer functionality to support the modern campus network topology Multilayer switches can be used in nonhierarchical networks; however, they will not perform at the optimal level The enterprise composite model identifies the key components and logical design for a modern topology Implementation of an ECNM provides a secure, robust network with high availability The Campus infrastructure, as part of an ECNM, provides additional security and high availability at all levels of the campus BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 43 CCNP – BSCI Bachkhoa Networking Academy Q and A BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 44 CCNP – BSCI Bachkhoa Networking Academy Resources Cisco Service-Oriented Network Architecture –http://cisco.com/en/US/partner/netsol/ns629/networking_soluti ons_market_segment_solutions_home.html Cisco Intelligent Information Network –http://cisco.com/en/US/partner/netsol/ns650/networking_soluti ons_market_segment_solution.html BSCI © 2008 Cisco Systems, Inc All rights reserved Học viện mạng Bách Khoa - www.bkacad.com 45 CCNP – BSCI BSCI © 2008 Cisco Systems, Inc All rights reserved Bachkhoa Networking Academy Học viện mạng Bách Khoa - www.bkacad.com 46 ... enterprise network into physical, logical, and functional boundaries List the benefits of the ECNM Describe the Campus Infrastructure module of the ECNM BSCI © 2008 Cisco Systems, Inc All rights... are making use of the SONA architecture Navigate to www.cisco.com and search on ? ?SONA Case Studies‖ From the SONA homepage, find the link for case studies Select one of the case studies... other technologies) more closely link the IT infrastructure with the network Intelligence across multiple products and infrastructure layers: The intelligence built in to each component of the