Network Design and Implementation Solution Table of Contents 1.
Executive Summary 1.1. Purpose of the Project 3 1.2. Strategic Recommendation 3 1.3. Implementation Consideration 3 1.4. Benefits of the Solution 4 2.
Designing Requirements 2.1. Existing Network 5 2.2. Network Requirements 5 3. Design Solution 3.1. Proposed Network Topology 6 3.2.
Hardware and Media Recommendation for the LAN 6 3.3. Hardware and Media Recommendation for the WAN 7 3.4. Network Layer Addressing and Naming Model 8 3.5. Routing and Bridging Protocols Recommendation for the Network 9 3.6. Software Features Provisioned for the Network 9 3.7.
Network Management Strategy 10 4. Summary 4.1. Benefits of Working with Cisco Systems 11 4.2. Benefits of Working with CD-INC 11 4.3.
Conclusion 12 5. Appendixes 5.1. Appendix A 13 5.1.1. Professors benefit 13 5.1.1.1.
Introduction: 13 5.1.1.1.1. Case Study: 13 5.1.1.1.2. PH Network Service Corporation 13 5.1.1.1.3. Company Background 13 5.1.1.1.4. Current Network 13 5.1.1.1.5. Goals for the New Network 14 5.2.
Appendix B 15 5.2.1. Visio Diagrams 5.2.1.1. Data Flow 15 5.2.1.2. Network Topology 16 5.2.1.3. Naming and Addressing Convention 17 5.3. Appendix C 5.3.1.
Cisco Device Description 18 Executive Summary Purpose of the Project PH Network Service Corporation (PH) requested that CD-INC to provide a network design and implementation solution to connect four Hospitals and 120 doctor offices. PH Network Service Corporation objectives are to: Improve communication transfer of the referrals Improve patient service Provide redundancy for WAN connection Network four hospitals and doctor offices Improve reliability and speed of the referrals Provide a suggestion for a possible back-up connection to the hospitals. Strategic Recommendation Timely access to information between the hospitals and the doctor offices is critical to patient care. The Network must be reliable, secure, and enable the doctors to access this system remotely from their offices with a remote access connection (RAS). Implementation Consideration CD-INC will design and implement entire solution. After the network is installed and functioning properly PH Network Solution will take over and provide their daily services to hospitals and doctors offices.
CD-INC will provide training for installed equipment. Benefits of the Solution The solution designed by CD-INC will provide the following benefits: Two of their employees will be assistants in phase of developing solution (training) One of their employees will be involved in phase of implementation Training of PH staff for new installed equipment Improved communication transfer of the referrals Improved patient service Redundancy for WAN connection Networking of the four hospitals and doctor offices Improved reliability and speed of the referral system A suggested connection for back-up hospital WAN link Design Requirements Existing Network The network must be built on a limited budget. Must be scalable for future WAN connections. The network must work with the servers on the network. The data must be readily available.
120 Offices transmitting data. Table A show the Application on the Network. Applications used by PH. Name and Type of Application Protocols # of users # of Host/Servers Peak hours of usage Automated referral system TCP/IP 120 1 8-12am/1-5pm Hospital Patient Records Async – 4 8-12am/1-5pm Patient Records from Doctor Offices Telnet – 4 8-12am/1-5pm Network Requirements The ISDN connections provide adequate bandwidth to support the needs of the Doctors offices connecting to the hospitals. This also means provisions must be taken to ensure more connections can be added when necessary. An ISDN connection should also be considered for the hospital as a back-up connection to the referral system.
There are bandwidth considerations for the Windows 2000 SQL 2000 servers using a Microsoft Access front end and 2400 referrals being made each day (48000 Packets). Figure A Data Flow of a Referral Request. Design Solution Proposed Network Topology Figure B Proposed Network Topology. Hardware and Media Recommended for the PH LAN 100-Mbps connections between the switch and the servers 10-Mbps between the switch and the end stations The Catalyst 2828 switch Software upgrade to Enterprise Edition 4 models with 24 10BaseT ports, two slots, and choice of 2K or 8K MAC address cache Choice of 11 high-speed modules support 100BaseT, FDDI, and ATM Full-duplex operation on all ports Web-based network interface enables configuration and management form any client on the Internet with a web-browser. Congestion control features including IEEE 802.3x-based flow control, and back – pressure based flow control on 10BaseT ports Hardware and Media Recommended for the WAN The Cisco 3620 router at the PH Head office LAN Interface: NM-1E One-port Ethernet network module. WAN Interface: ISDN and Channeled Serial Network Modules NM-1CT1 One-port channeled 1/ISDN PRI network module Frame Relay supported by an 8-port T1 IMA network interface The Cisco 1004 router at the doctors offices LAN Interface: One 10BaseT Ethernet port (RJ-45) WAN Interface: One ISDN BRI WAN port (RJ-45), with an integrated NT1 device The Cisco 2611 router at the Hospitals LAN Interface: Two Ethernet ports WAN Interface: ISDN and Channeled Serial Network Modules NM-1CT1 One-port channeled 1/ISDN PRI network module Network Addressing and Naming Convention Figure C Network Addressing and Naming Convention The Hospitals have provided two Network addresses (202.12.27.0 & 202.12.28.0).
The Network 202.12.27.0 was provided for the two WAN connections. This network will be sub-netted with a 26 bit sub-net mask to create a sub-network of 202.12.27.64/26 for the frame relay WAN and 202.12.27.128 for the ISDN WAN. The Network 202.12.28.0 has been given to PH for internal use on their LAN with a 24 bit sub-net mask. Table B Device List and Network Addressing Device Name Location # Required Device Address Port Address Catalyst 2828 PH SW 1 PH LAN 3 202.12.28.4 24 Ethernet ports 202.12.28.11-254/24 PH SW 1 202.12.28.5 24 Ethernet ports 202.12.28.11-254/24 PH SW 1 202.12.28.6 24 Ethernet ports 202.12.28.11-254/24 Windows 2000 AS/SQL Server 2000 PH SER 1 PH LAN 2 202.12.28.7 PH SER 2 202.12.28.8 Cisco 3620 PH RO 1 PH LAN 1 S0 202.12.27.129/26 S1 202.12.27.65/26 E0 202.12.28.1/24 E1 – Cisco 2611 HOS RO 1 Hospitals 4 HOS RO 2 S0 202.12.27.12.131-134/26 HOS RO 3 S1 – HOS RO 4 E0 – E1 – Cisco 1004 DRO RO # Dr. Offices ? Dynamic serial addressing S0 202.12.27.66-126/26 E0 – Routing and Bridging Protocols The common program running at all locations is the patient referral system and it is IP based so routing it is not a problem. The NT names do not need to be routed.
We recommend that OSPF (an open standard supported by all major network vendors) be used as the routing protocol to support a multi-vendor environment. Software Features Additional security maybe required too protect the sensitive information being sent even though both WAN networks an inherent amount of security built in. Implementing a full security solution would be very expensive especially on the ISDN Network. The most cost-effective solution would be to: 1. Place a layer2 encryption protocol (such as Ciscos Encryption Services) on the Frame Relay Network and an application layer encryption protocol on the ISDN Network. 2.
Put all the LANs behind DMZ (Demilitarized Zone) using PIX firewalls. Network Management Strategy The network should be easy to manage depending on the number of doctors office that need their routers maintained. ABC could manage the network if needed or Network Management tools that the junior administrator is comfortable with could be installed. Summary Benefits of working with Cisco systems **”Cisco Systems, Inc. is the worldwide leader in networking for the Internet. Cisco routers arc the basis for over 80 percent of the Internet infrastructure, and Cisco supplies 60 percent of the access solutions used by companies to provide connectivity for remote users and connect to the Internet.
Additionally, Cisco, the inventor of switched Ethernet and Fast Ethernet today’s most popular high-performance LAN technologies leads the way in providing affordable, high-performance LAN solutions. Cisco’s solutions designed help you maximize your business potential and cost-effectively meet your expanding networking requirements. These solutions leverage Cisco’s vast networking experience, innovative technologies, outstanding service, and high-quality products, and they help organizations make the transition that extend beyond the main office to multiple offices, mobile users telecommuters, and to the Internet. These solutions give network managers the tools they needed to build networks that are scalable, flexible, and powerful enough to handle the challenges today’s networking environment. Cisco products include a wide range of high-performance LAN products, such as 100BaseT hubs and Ethernet switches, routers, dial access servers, and network management software solutions.
All of these products are based on the Cisco IOS technologies an integrated of network services that provides the native intelligence for more than 1 million “installed Cisco units and comprises an integral part of the products of many global partners. All Cisco products provide quality, reliability, network security, and interoperability based on industry standards Headquartered in San Jose, California, Cisco employs more than 12,000 people in over 125 worldwide locations. The company’s stock is traded over the counter on the Nasdaq National Market under the symbol CSCO.” ** Cisco Network Design edited by Diane Teare published by Cisco Press Benefits of Working with CD-INC CD-INC Company specializes in management, development, implementation and consulting networking solutions for over xx years. Conclusion CD-INC will provide the design and the product solution that will meet 100% of the PH Network Solution requirements and be in the required budget. The entire system will meet PH Network request for redundancy on the hospitals sides. Products that are selected will provide for entire network the best performance and quality available.
Appendix A * Introduction to Case Study PH Network Service Corporation The Client Mr. Pero of PH Network is responsible for updating the network to use new technologies. Company Background PH Network is joint venture between the New Life hospital system and 750 physicians in the community served by New Life. The company was formed to improve patient service by the hospital system and physicians, and to provide leverage when negotiating with managed care health plan companies. One problem area and cost for the doctors is the specialist referral authorization system. The doctors must get authorized referrals for specialist service for their patients before the managed care health plans will cover the cost for the patient.
PH Network has negotiated with a number of health plans to take on the risk of these referrals in exchange for more of the premium. PH has determined that this scenario will make economic sense if it can implement an automated referral system. Mr. Pero has indicated that referrals are nearly always made during normal office hours of 8 a.m. to 12 p.m.
and 1 p.m. to 5 p.m. Current Network The company maintains a 56kbps leased-line connection to the hospital facilities, plus a dial-up terminal connection to some of the larger doctor offices for access to the hospitals patient records. Both direct terminal access and Telnet access are available on the hospital hosts.
There are total of 120 doctor offices and 4 hospitals. The actual PH Network staff consists of 50 employees in a single office location. Because the number of these referral transactions will average 20 per day, PH Network plans to use IDSN to network to all the doctor offices, and a Frame Relay network between the PH office and the four hospitals. The connection between doctor offices and the PH referrals system will be a “dial as needed” design. Each doctors office will have a PC for this purpose.
Some of the larger offices already have small Ethernet LANs. However, PH is concerned that the doctors will simply stop using the system if it is not available when needed, which would mean failure for the venture. Goals for the New Network PH also knows doctors do not like to spend non-medical money. Therefore, it wants a network with the best estimate of sufficient ISDN connection to start and the capability to add new connection rapidly. The software is being developed for a Windows NT/SQL Server system with a Microsoft Access front end using an ODBC interface to the SQL Server. The hospital connection is critical, so PH would like to look at possible redundancy or backup for this connection.
*Cisco Network Design – edited by Diane Teare Publisher Cisco Press Appendix B Visio Diagrams Data Flow Solution Network Topology Solution Addressing and Naming Convention Appendix C Cisco Device Description Catalyst 2820 Series Modular Ethernet Switches Product Overview The modular Catalyst 2820 series switches are the ideal solution for Ethernet workgroups and individual users who need increased performance at a surprisingly affordable price, and 100BaseT, Fiber Distributed Data Interface (FDDI), or Asynchronous Transfer Mode (ATM) connectivity to servers and network backbones. A Catalyst 2820 series Standard Edition switch is an effective backbone in a small/medium business network, aggregating 10BaseT hubs and network resources, or used at the workgroup level in a large network for dedicated, high speed connections from individual desktops to servers and other network devices. All Catalyst 2820 series switches offer unrivaled ease of use through an intuitive and comprehensive Web-based management interface. Standard Edition switches are upgradable to provide unmatched flexibility and scalability when combined with Enterprise Edition software. Enterprise Edition software enables these switches to deliver comprehensive management and security, bandwidth optimization, networked multimedia, and virtual LAN (VLAN) support. Enterprise Edition software enables these switches to deliver unmatched network configuration flexibility and scalability through embedded Cisco technologies, delivering comprehensive management and security, bandwidth optimization, networked multimedia, and virtual LAN (VLAN) support.
The Enterprise Edition software is pre-installed in Enterprise Edition switches, and available as an Upgrade Kit for Standard Edition switches. Key Features and Benefits Standard Edition Feature Summary Software upgradable to Enterprise Edition 4 models with 24 10BaseT ports, two slots, and choice of 2K or 8K MAC address cache Choice of 11 high-speed modules support 100BaseT, FDDI, and ATM Full-duplex operation on all ports Web-based network interface enables configuration and management form any client on the internet with a web-browser. Congestion control features including IEEE 802.3x-based flow control, and back-pressure based flow control on 10BaseT ports Performance Twelve or twenty-four 10BaseT ports deliver dedicated 10 Mbps of bandwidth to individual users or workgroups to support bandwidth-intensive applications Two high-speed expansion slots maximize high-speed configuration and backbone flexibility One switched Attachment Unit Interface (AUI) port for connecting to fiber or legacy 10Base2 or 10Base5 networks Shared-memory architecture with 3 MB packet buffer virtually eliminates packet loss Non-blocking, ClearChannel architecture supports wire-speed bridging on all ports, delivering up to 370 Mbps maximum forwarding bandwidth, and 550,000 pps aggregate CollisionFree full-duplex operation on switched 10BaseT and 100BaseT ports delivers up to 200 Mbps of bandwidth tend stations, servers and between switches Choice of congestion control options for applications that require zero packet loss: Enhanced congestion control accelerates packet forwarding when the switch buffers are full Back-pressure on half-duplex Ethernet ports throttles network transmission using the IEEE 802.3 Layer 2 back-off algorithm IEEE 802.3x flow control on 100BaseTX ports provides intelligent flow management between switches and between a switch and a server Per-port broadcast storm control prevents faulty end stations from degrading overall system performance with broadcast storms Choice of cut-through or store-and-forward switching lets administrators optimize for performance or error checking Security and Redundancy IEEE 802.1d Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance TACACS+ enables designation of a separate access server for authentication, authorization, and accounting (Enterprise Edition only) User-selectable address learning mode simplifies configuration and enhances security Resilient link support for faster recovery from network failures Scalability Fast EtherChannel provides up to 400 Mbps of bandwidth to switches, routers, and servers by enabling parallel bandwidth links between switches (with Enterprise Edition software). Cisco Group Management Protocol (CGMP) enables a switch to selectively and dynamically filter and forward routed IP multicasts to targeted multimedia end stations, optimizing bandwidth for applications such as Intranet, video-conferencing and IPTV.
Overlapping bridge groups control broadcasts within the switch to manage bandwidth and provide added security. Broadcast control for end stations with up to 1024 administrator-defined, port-based VLANs. VLANs can be distributed across multiple switches with Cisco`s dynamic Inter-Switch Link (ISL) trunking on 100BaseT ports (with Enterprise Edition software). Support for optional Cisco 600-watt redundant AC power system provides a backup power source for up to four units for improved fault tolerance and network uptime. Flexible Network Configuration No per-port Media Access Control (MAC) addresses limitations provides flexibility to connect to individual users or shared hubs.
Support for 1024 MAC addresses on Catalyst 1900 and up to 8192 addresses on Catalyst 2820. Allows switch to scale with a growing network Configurable network port that supports unlimited MAC addresses for backbone connectivity Management Web-based secured interface allows user to configure and manage the switch from any client on the internet with a web-browser Simple Network Management Protocol (SNMP) and Telnet support delivers comprehensive in-band manageability, and a menu-based management console provides out-of-band manageability Supports four groups of embedded RMON (history, statistics, alarms, and events). Support for all nine RMON groups through use of a SwitchProbe Analyzer port that permits traffic monitoring of a single port, a group of ports, or the entire switch from a single network analyzer or RMON probe. (Enterprise Edition only) Cisco Discovery Protocol (CDP) enables a CiscoWorks network management station to automatically discover the switch in a network topology Autonegotiation on 100BaseTX ports automatically selects half- or full-duplex transmission mode to optimize bandwidth Domain Name Service (DNS) eases network administration by enabling logical name assignments.
Network Administrators can specify an end system or Catalyst 1900/2820 by name, rather than address. Dynamic Host Configuration Protocol (DHCP) support eases network administration by automatically requesting an IP address from any network DHCP server. http://www.cisco.com/univercd/cc/td/doc/pcat/ca282 0.htm Cisco 3600 Series Modular, High-Density Access Routers Product Overview The Cisco 3600 series is a multifunction platform that combines dial access, routing, and LAN-to-LAN services and multiservice integration of voice, video and data in the same device. The Cisco 3600 series includes the Cisco 3660, the Cisco 3640, and Cisco 3620 multiservice platforms. As modular solutions the Cisco 3660, the Cisco 3640, and Cisco 3620 have the flexibility to meet both current and future connectivity requirements. The Cisco 3600 series is fully supported by Cisco IOS software, which includes analog and digital voice capability, ATM access with T1/E1 IMA or OC-3 interfaces, dial-up connectivity, LAN-to-LAN routing, data and access security, WAN optimization, and multimedia features.
The Cisco 3660 has six network module slots; The Cisco 3640 has four network module slots; the Cisco 3620 has two slots. Each network module slot accepts a variety of network module interface cards, including LAN and WAN mixed media cards supporting Ethernet, Fast Ethernet, Token Ring, and a variety of WAN technologies. These cards provide the foundation of LAN and WAN connectivity on a single, modular, network module. Additional applications are supported with a series of network module cards offering digital modems, asynchronous and synchronous serial, ISDN PRI, and ISDN BRI interfaces. In addition to the 6 network module slots the Cisco 3660 has 2 internal Advanced Integration Module (AIM) slots for applications such …
