1. © 2006 Cisco Systems, Inc. All rights reserved. Implementing Secure Converged Wide Area Networks (ISCW) Module 1 Remote Network Connectivity Requirements

2. © 2006 Cisco Systems, Inc. All rights reserved. Lesson 1.1 Enterprise Networking Module 1 Remote Network Connectivity Requirements

3. © 2006 Cisco Systems, Inc. All rights reserved. Objectives  Define IIN and Cisco SONA frameworks  Describe the traditional three-layer hierarchical network model.  Identify remote network requirements and options.

4. © 2006 Cisco Systems, Inc. All rights reserved. Traditional Three-layer Hierarchical Model

5. © 2006 Cisco Systems, Inc. All rights reserved. Elements of Cisco Enterprise Architecture

6. © 2006 Cisco Systems, Inc. All rights reserved. Remote Network Requirements  The central site must: Provide secure and reliable access to resources for remote users. Accommodate many types of WAN connections from remote locations.  Remote sites: Branch office — A remote location that accommodates employees who have a reason to be located away from the central site. A branch office is also called a remote site or remote office. SOHO site — A small office with one to several employees or the home office of a telecommuter. Mobile workers sites — Remote locations for mobile users who tend to access the company network using an asynchronous dialup connection or access the corporate intranet using broadband Internet service.

7. © 2006 Cisco Systems, Inc. All rights reserved. Setting Up WAN Connections for Remote Sites FactorOptions Multiple access optionsLeased line, broadband, MPLS, Frame Relay, VPN, ISDN CostPermanent, on-demand, public or private Access controlRouter and firewall rulesets Secure connectivityIPsec or MPLS VPN AuthenticationRemote to central RedundancyDuplicate services in case of failure Infrastructure availabilityNot all services are available in all areas

8. © 2006 Cisco Systems, Inc. All rights reserved. Example: Integrated Services for Secure Remote Access

9. © 2006 Cisco Systems, Inc. All rights reserved. Intelligent Information Network  Intelligent Information Network (IIN) integrates networked resources and information assets.  IIN extends intelligence across multiple products and infrastructure layers.  IIN actively participates in the delivery of services and applications.  Three phases in building an IIN are: Integrated transport Integrated services Integrated applications

10. © 2006 Cisco Systems, Inc. All rights reserved. Cisco SONA Framework  The Cisco Service-Oriented Network Architecture (SONA) is an architectural framework.  SONA brings several advantages to enterprises: Outlines how enterprises can evolve towards the IIN Illustrates how to build integrated systems across a fully converged intelligent network Improves flexibility and increases efficiency

11. © 2006 Cisco Systems, Inc. All rights reserved. Cisco SONA Layers

12. © 2006 Cisco Systems, Inc. All rights reserved. Self Check 1.What are the 3 layers included in the traditional hierarchical model? 2.What 3 types of remote sites that must be accommodated at the central site? 3.What are some examples of the types of WAN technologies used to connect a remote site to the central site?

13. © 2006 Cisco Systems, Inc. All rights reserved. Summary  The traditional three-layer hierarchical model no longer completely meets the needs of large enterprise networks with remote sites.  Cisco Enterprise Architecture integrates the entire network—campus, data center, branches, teleworkers, and WAN—to provide secure access to all tools, processes, and services across all sectors of the company.  Providing secure remote access is a key feature of Cisco Enterprise Architecture. The infrastructure layer of SONA addresses remote access.  IIN aligns IT resources with business priorities.  Cisco SONA provides an evolutionary path to IIN.

14. © 2006 Cisco Systems, Inc. All rights reserved. Q and A

15. © 2006 Cisco Systems, Inc. All rights reserved. Resources  What is IIN? http://www.cisco.com/en/US/netsol/ns650/networking_solutions _market_segment_solution.html  At-a-Glance: What is Cisco SONA? http://www.cisco.com/application/pdf/en/us/guest/netsol/ns477/c 643/cdccont_0900aecd8039b324.pdf  Service Orientated Network Architecture http://cisco.com/en/US/netsol/ns629/networking_solutions_mark et_segment_solutions_home.html

16. © 2006 Cisco Systems, Inc. All rights reserved.