Network Degn Essay Example For Students

Network Degn Essay 1.2.Strategic Recommendation31.3.Implementation Consideration31.4.Benefits of the Solution43.1.Proposed Network Topology63.2.Hardware and Media Recommendation for the LAN63.3.Hardware and Media Recommendation for the WAN73.4.Network Layer Addressing and Naming Model83.5.Routing and Bridging Protocols Recommendation for the 3.6.Software Features Provisioned for the Network93.7.Network Management Strategy104.1.Benefits of Working with Cisco Systems114.2.Benefits of Working with CD-INC115.1.1.1.2.PH Network Service Corporation135.1.1.1.5.Goals for the New Network145.2.1.3.Naming and Addressing Convention175.3.1.Cisco Device Description18PH 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 referralsProvide redundancy for WAN connectionNetwork four hospitals and doctor officesImprove reliabili ty and speed of the referralsProvide a suggestion for a possible back-up connection to the hospitals. 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). 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. 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 implementationTraining of PH staff for new installed equipmentImproved communication transfer of the referralsNetworking of the four hospitals and doctor officesImproved reliability and speed of the referral systemA suggested connection for back-up hospital WAN linkThe 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. Table A show the Application on the Network. Name and Type of ApplicationProtocols# of users# of Host/ServersPeak hours of usageAutomated referral systemTCP/IP12018-12am/1-5pmHospital Patient RecordsAsync-48-12am/1-5pmPatient Records from Doctor OfficesTelnet-48-12am/1-5pmThe 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. Hardware and Media Recommended for the PH LAN100-Mbps connections between the switch and the servers10-Mbps between the switch and the end stationsSoftware upgrade to Enterprise Edition4 models with 24 10BaseT ports, two slots, and choice of 2K or 8K MAC address cacheChoice of 11 high-speed modules support 100BaseT, FDDI, and ATMFull-duplex operation on all portsWeb-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 portsHardware and Media Recommended for the WANThe Cisco 3620 router at the PH Head officeNM-1E One-port Ethernet network module. ISDN and Channeled Serial Network Modules NM-1CT1 One-port channeled 1/ISDN PRI network moduleFrame Relay supported by an 8-port T1 IMA network interfaceThe Cisco 1004 router at the doctors officesOne ISDN BRI WAN port (RJ-45), with an integrated NT1 deviceThe Cisco 2611 router at the HospitalsISDN and Channeled Serial Network Modules NM-1CT1 One-port channeled 1/ISDN PRI network moduleNetwork Addressing and Naming ConventionFigure C Network Addressing and Naming ConventionThe 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 AddressingDeviceNameLocation# RequiredDevice AddressPortAddressCatalyst 2828PH_SW_1PH LAN3202.12.28.424 Ethernet ports202.12.28.11-254/24PH_SW_1202.12.28.524 Ethernet ports202.12.28.11-254/24PH_SW_1202.12.28.624 Ethernet ports202.12.28.11-254/24Windows 2000 AS/SQL Server 2000PH_SER_1PH LAN2202.12.28.7HOS_RO_2S0202.12.27.12.131-134/26Cisco 1004DRO_RO_#Dr. Offices?Dynamic serial addressingThe 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. 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. 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. 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 todays most popular high-performance LAN technologies leads the way in providing affordable, high-performance LAN solutions. Ciscos solutions designed help you maximize your business potential and cost-effectively meet your expanding networking requirements. These solutions leverage Ciscos 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 todays 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 companys 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 PressCD-INC Company specializes in management, development, implementation and consulting networking solutions for over xx years. 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. Mr. Pero of PH Network is responsible for updating the network to use new technologies. 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. 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 . 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 Catalyst 2820 Series Modular Ethernet SwitchesThe 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, networke d 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. Software upgradable to Enterprise Edition4 models with 24 10BaseT ports, two slots, and choice of 2K or 8K MAC address cacheChoice of 11 high-speed modules support 100BaseT, FDDI, and ATMFull-duplex operation on all portsWeb-based network interface enables configuration and management form any client on the internet with a web-browser. Ulysses By Tennyson (694 words) EssayThe Cisco 2600 series shares modular interfaces with the Cisco 1600, 1700 and 3600 series, providing a cost-effective solution to meet todays branch office needs for applications such as:Secure Internet/intranet access with Firewall protectionMultiservice voice/data integrationAnalog and digital dial access servicesVirtual Private Network (VPN) accessWhile the pace of change in network technology continues to increase, global deregulation of telecommunications has allowed more service providers to compete for data, voice and video network services. Only companies who have designed their network infrastructures with these factors in mind will be able to benefit from the lower prices caused by increased competition and protect themselves from technology lockout in the future. The Cisco 2600 series features single or dual fixed LAN interfaces, a network module slot, two Cisco WAN interface card (WIC) slots, and a new Advanced Integration Module (AIM) slot. LAN support includes single and dual Ethernet options; 10/100 Mbps autosensing Ethernet; mixed Token-Ring and Ethernet; and single Token Ring chassis versions. WAN interface cards support a variety of serial, ISDN BRI, and integrated CSU/DSU options for primary and backup WAN connectivity, while available network modules support multiservice voice/data/fax integration, departmental dial concentration, and high-density serial options. The AIM slot supports integration of advanced services such as hardware-assisted data compression and in the future, encryption. All Cisco 2600 series routers include an auxiliary port supporting 115Kbps Dial On Demand Routing, ideal for back-up WAN connectivity. As part of Ciscos comprehensive end-to-end networking solution, the Cisco 2600 series allows businesses to extend a cost-effective, seamless multiservice network infrastructure to the branch office. By deploying the Cisco 2600 series router, companies can consolidate the functions of multiple separate devices into a single, compact package that can be managed remotely. Because the Cisco 2600 series is modular, interface configurations are easily customized to accommodate a wide variety of network applications. Some of these applications include the following:Multiservice Voice/Data/Fax IntegrationThe Cisco 2600 Series reinforces Ciscos commitment to provide multiservice voice/data integration capabilities across its product portfolio, allowing network managers to save on long-distance inter-office toll charges and enabling next-generation voice-enabled applications such as integrated messaging and Web-based call centers. Using the sophisticated QoS features of Cisco IOS software, suc h as the Resource Reservation Protocol (RSVP), Weighted Fair Queuing (WFQ), FRF.11 and FRF.12, and IP Precedence, the Cisco 2600 series allows voice traffic to be digitized, encapsulated in data packets or Frames, and prioritized over other data traffic for a highly efficient, end-to-end network infrastructure for Voice over Frame Relay or Voice over IP. With support for up to 36 high-speed asynchronous ports or up to 64 ISDN B channels, the Cisco 2600 provides a cost-effective, single-box dial concentration solution for enterprise or service provider networks. By allowing users in remote locations to call a local phone number for access to both the corporate LAN or the Internet, enterprises can reduce toll charges. For example, the Cisco 2600 series provides dial-up capability for up to 32 remote users, accommodating protocols such as PPP, SLIP, ARA, and Xremote on any port, while supporting dedicated connections to the Internet and the corporate intranet. The new integrated 8 and 16 analog modem modules provide for a single box Remote Access Server solution with improved manageability. Virtual Private Network (VPN) Access and Firewall ProtectionMany companies have begun to use Virtual Private networks (VPNs) to reduce WAN costs by deploying secure tunneled connections via the Internet. VPNs can be rapidly set up and torn down to provide extranet links to customers, business partners and remote employees. With extra performance required to support advanced Cisco IOS security features such as IPSec and 3DES encryption, the Cisco 2600 series can support multiple encrypted tunnels and provide the advanced security features of the Cisco IOS Firewall feature set. For example, a Cisco 2610 router in the branch office can provide secure privileged access to business partners while also supporting another connection to a Cisco 2621 in the main office. The dual-LAN architecture of the Cisco 2621 allows the customer to create an external subnet or DMZ for a public Web server outside the firewall while providing security for the internal network. Simultaneously, remote users c an connect to local point of presence Cisco 5300 which tunnels across the Internet to the same 2621 saving on long distance or 1-800 connection charges. Cisco IOS features such as tunneling, data encryption, and termination of Remote Access WANs via IPSec, Layer 2 Forwarding (L2F) and Layer 2 Tunneling Protocols (L2TP) make the Cisco 2600 an ideal platform for building virtual private networks or outsourced dial solutions. The Cisco 2600 provides a cost-effective, flexible solution for concentrating serial devices in remote locations. Async/sync ports provide connections to serial devices such as SDLC concentration devices, alarm systems, ATMs, debit/credit terminals and cash registers. With full Cisco IOS protocol support including SDLC, BSC, BTSUN, STUN, X.25, Frame Relay, and polled async, the Cisco 2600 consolidates traffic from a wide variety of serial devices over a single connection, eliminating costly dial-up BSC links. The 4- or 8-port asynchronous/synchronous network modules can be combined with, for example, the mixed Ethernet/Token Ring Cisco 2612 and integrated CSU/DSU and BRI WICs to address various retail or financial branch office environments. Stacking the Cisco 2600 series with Cisco LAN switches such as the Catalyst 1900, 2820 and 2900XL series enables network administrators to manage remote branch office environments efficiently using CiscoWorks and CiscoView network management solu tions. Cisco 2600 offers a variety of connectivity options with the reliability and high performance required to address todays evolving branch office WANs. Up to 8 dedicated 128-kbps synchronous connections, one ISDN BRI and one T1/fractional T1 Frame Relay connections can be simultaneously supported with a single Cisco 2600. The Cisco 2600 offers a unique combination of versatility, integration and power at an attractive price for branch office LAN-to-LAN routing applications. Many of todays multiple device solutions gateways can be integrated into one Cisco 2600 configuration. Cisco 2600s RISC-based processor provides the power needed for the dynamic requirements of the remote branch office, achieving wire speed Ethernet to Ethernet routing with up to 25 thousand packets per second (Kpps) throughput capacity. The Cisco 2600s combination of fixed LAN port(s) along with modular interfaces provide customers with the ability to change or meet future networking requirements without a forklift upgrade. As part of Ciscos comprehensive end-to-end networking solution, the Cisco 2600 series supports the value of end-to-end Cisco network solutions with the following benefits:Allows network managers to save long-distance inter-office toll charges and enable next-generation voice applications such as integrated messaging and Web-based call centers. Because the Cisco 2600 series supports field-upgradable modular components, customers can easily change network interfaces without a forklift upgrade of the entire branch office solution. The AIM slot of the Cisco 2600 platform further protects investments by enabling new services such as hardware-assisted data compression and, in the future, hardware-assisted data encryption without using an external interface slot. To maximize network uptime, the Cisco 2600 series offers a redundant power supply (RPS), which can be shared with other Cisco products. The Cisco 2600 series also supports Cisco IOS reliability features such as dial-on- demand routing (DDR) to restore both data and voice services automatically in the event of a primary link failure. Integrating the functions of CSU/DSUs, ISDN Network Termination (NTI) devices, modems, firewall, compression and encryption devices and other equipment found in branch office wiring closets in a single, compact unit provides a space-saving solution that can be managed remotely using network management applications such as CiscoWorks and CiscoView. Part of a Cisco end-to-end solutionAs part of Ciscos comprehensive end-to-end networking solution, the Cisco 2600 series allows businesses to extend a cost-effective, seamless multiservice network infrastructure to the branch office. The Cisco 2600 series is available in the following six base configurations:Cisco 2612: One Ethernet port and One Token Ring port Cisco 2620: One 10/100 Mbps auto-sensing Ethernet PortCisco 2621: Two 10/100 Mbps auto-sensing Ethernet PortsEach model also has two WAN interface card slots, one network module slot, and one AIM slot. All Cisco 2600s include the Cisco IOS IP feature set; other feature sets may be selected as upgrade options. http://www.cisco.com/univercd/cc/td/doc/pcat/2600.htmFixed-Configuration Desktop Access RoutersThe Cisco 1000 series of compact, fixed-configuration routers provide low-cost, high-speed connectivity for branch and small offices. Available in synchronous and asynchronous models. There are currently three Cisco 1000 series models:One Type-2 PCMCIA slot for Flash ROM cardOne ISDN BRI WAN port (RJ-45), with an integrated NT1 device One Type-2 PCMCIA slot for Flash ROM cardOne serial WAN port (DB-60) that supports asynchronous serial communications up to 115.2 kbps (EIA/TIA-232 interface) and synchronous serial such as leased lines, Frame Relay, switched 56 kbps, SMDS, and X.25 up to 2.048 Mbps (EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA-530)One Type-2 PCMCIA slot for Flash ROM cardCisco 1003 and Cisco 1004 ISDN RoutersThe Cisco 1003 and Cisco 1004 routers are small, desktop routers that connect small, remote sites with Ethernet LANs to ISDN WANs. The main difference between the two routers is that the Cisco 1004 router includes an integrated network termination 1 (NT1) device and the Cisco 1003 router does not. The ISDN service provider supplies the NT1 connection worldwide, except in North America, where the NT1 device is supplied by the customer. Therefore, the Cisco 1004 router is for use in North America, and the Cisco 1003 router is applicable worldwide. The rear view of the routers looks the same except for the following differences, shown in the following figure:The BRI port on the Cisco 1003 is labeled ISDN S/T, and Cisco 1003 is stamped on the upper left corner of the chassis (not illustrated). The BRI port on the Cisco 1004 is labeled ISDN U, and Cisco 1004 is stamped on the upper left corner of the chassis (not illustrated). The Cisco 1003 and Cisco 1004 routers include the following standard features:One Ethernet 10BaseT port with an RJ-45 connectorOne ISDN BRI port with an RJ-45 connector (the Cisco 1004 router includes an integrated NT1 device)One console port with an RJ-45 connectorConsole cable kit and power supplyOne external PCMCIA slot for optional Type-2 Flash memory cardSoftware booting over an Ethernet LAN using TFTPOptional Flash memory card to store software image and configuration files, allowing network-independent booting and software updates over the WAN or LAN connectionsLAN-to-LAN DDR routing over ISDN linesPPP compression and bandwidth-on-demand with load balancing for throughput up to 512 kbpsIncreased security with CHAP, PAP, packet filters, local password and CLI/ANI Network management and monitoring through the console port or over the network using SNMP or TelnetInformation about devices is from Cisco web site and it can be found on:http://www.cisco.com/univercd/cc/td/doc/pcat/10 00.htmBibliography:IT proffesioanl