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Network Degn

November 20, 2018 0 Comment

1.2.Strategic Recommendation3
1.3.Implementation Consideration3
1.4.Benefits of the Solution4
3.1.Proposed Network Topology6
3.2.Hardware and Media Recommendation for the LAN6
3.3.Hardware and Media Recommendation for the WAN7
3.4.Network Layer Addressing and Naming Model8
3.5.Routing and Bridging Protocols Recommendation for the
3.6.Software Features Provisioned for the Network9
3.7.Network Management Strategy10
4.1.Benefits of Working with Cisco Systems11
4.2.Benefits of Working with CD-INC11
5.1.1.1.2.PH Network Service Corporation13
5.1.1.1.5.Goals for the New Network14
5.2.1.3.Naming and Addressing Convention17
5.3.1.Cisco Device Description18
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
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.

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 implementation
Training of PH staff for new installed equipment
Improved communication transfer of the referrals
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
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.

Table A show the Application on the Network.

Name and Type of ApplicationProtocols# of users# of Host/ServersPeak hours of usage
Automated referral systemTCP/IP12018-12am/1-5pm
Hospital Patient RecordsAsync-48-12am/1-5pm
Patient Records from Doctor OfficesTelnet-48-12am/1-5pm
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.

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
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
NM-1E One-port Ethernet network module.

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
One ISDN BRI WAN port (RJ-45), with an integrated NT1 device
The Cisco 2611 router at the Hospitals
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
DeviceNameLocation# RequiredDevice AddressPortAddress
Catalyst 2828PH_SW_1PH LAN3202.12.28.424 Ethernet ports202.12.28.11-254/24
PH_SW_1202.12.28.524 Ethernet ports202.12.28.11-254/24
PH_SW_1202.12.28.624 Ethernet ports202.12.28.11-254/24
Windows 2000 AS/SQL Server 2000PH_SER_1PH LAN2202.12.28.7
HOS_RO_2S0202.12.27.12.131-134/26
Cisco 1004DRO_RO_#Dr. Offices?Dynamic serial addressing
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.

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 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
CD-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 Switches
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.

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
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
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
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.

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
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/ca2820.htm
Cisco 3600 Series Modular, High-Density Access Routers
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 as hardware accelerated compression and the chassis incorporates 1 or optionally 2 integrated 10/100 (Ethernet/Fast Ethernet) ports.

The Cisco 3600 series shares network modules, WAN Interface Cards, and Voice Interface Cards with the Cisco 2600 series. The Cisco 3600 series shares WAN Interface Cards with the Cisco 1600 and Cisco 1700 series.

The Cisco 3660, Cisco 3640, and Cisco 3620 routers support the following network applications and services:
The voice/fax network modules for the Cisco 2600 and Cisco 3600 series multiservice access routers enable packet voice technologies including VoIP and VoFR. Cisco’s voice solutions provide the means for integrating both voice and data within a single network and allow users to take advantage of services, such as toll-bypass, without sacrificing voice quality. The digital T1/E1 Packet Voice Trunk Network Module provides a flexible and scalable T1/E1 voice solution and supports up to 60 voice channels in a single network module. The analog voice/fax network modules slide into Cisco 2600 and 3600 chassis slots and contain either one or two voice interface card (VIC) slots. The VICs currently available are two-port foreign exchange station (FXS), foreign exchange office (FXO), E;M 2-wire and 4-wire interfaces and a basic rate interface (BRI). The voice modules support all major industry codecs including G.711, G.723, G.726, G.728, G.729 and G.729a/b for customized solutions and to meet the need for high voice quality and bandwidth efficiency
Four new multiport T1/E1 ATM network modules with Inverse Multiplexing over ATM (IMA) and 3 ATM OC-3 network module are now available for the 3600 series multiservice access platforms. These new multiport ATM modules allow service provider and enterprise customers to cost-effectively increase bandwidth, extending multiservice capabilities to remote-branch-office locations through ATM. These network modules support a robust set of ATM features including UBR, VBR-rt, VBR-nrt, and ABR ATM class of services, ATM Forum User Network Interface (UNI) 3.0, UNI 3.1, and UNI 4.0 signaling, Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs), and ATM Adaptation Layer 5 (AAL5) to name a few.

The Cisco 3600 is a mid-range dial-up platform that fits between Cisco’s AccessPath and AS5300 products at the high end and the Cisco 2500 series access servers at the low end. Mixed-mode and high density ISDN and asynchronous configurations offer substantial flexibility in dial-up applications. Integrated digital modems (with support for PRI, BRI, CT1 and R2) and new integrated analog modems further enhance the dial access flexibility and scalability of the Cisco 3600.
The Cisco 3600 series offers high levels of cost effective ISDN PRI concentration. A Cisco 3640 configured with a Mixed Media LAN/ISDN PRI network module and three 2-port ISDN PRI network modules supports up to 186 (T1) or 240 (E1) B channels. This is a powerful and cost effective way to aggregate many branch offices and telecommuters onto one corporate network.
For areas of the world where ISDN BRI services are more widely available or cost effective, the Cisco 3600 series supports many BRI interfaces. Configured with a LAN network module and three 8-port network modules, a Cisco 3640 connects up to 48 B channels. In this way, one system provides high-density BRI interface dial-up support and local LAN and WAN routing connectivity.
With support for up to 48 synchronous serial interfaces on the Cisco 3660, the Cisco 3600 series and its RISC processor are the perfect complement to the Cisco 2600, 2500, 1700, and 1600 series. The Cisco 3600’s higher performance and modular design are appropriate for locations needing support for multiple T1/E1 links or the ability to change configurations in the future.

Many corporate environments require support for a mixture of ISDN PRI, ISDN BRI, asynchronous serial, and synchronous serial connections. The Cisco 3600 series is ideal for this scenario. It allows migration between interfaces or simultaneous support of several technologies.

Multiservice access solutions and applications
The three Cisco 3600 models allow new levels of connectivity and performance for branch offices with their scalable size, slot density, and cost. Combinations of network modules provide new opportunities for branch offices needing more than a fixed-configuration solution. The Cisco 3620, for example, provides multiple LAN access server support for asynchronous, ISDN, analog modem and digital modem environments, which complements the Cisco 2500 series access servers. Alternatively, a Cisco 3620 adds multiple LAN capabilities to branch bank environments needing to assimilate legacy serial devices, connecting them all to a high-speed Frame Relay network.
Consistent with its other capabilities, the Cisco 3600 series offers midrange LAN-to-LAN connectivity for branch offices needing a flexible modular platform. The Cisco 2500 series, with a multitude of fixed configurations, offers cost effective branch office solutions including integrated routers and hubs, single and dual LAN routers, and multiple serial routers.
Network Module Options for the Cisco 3600 Series
The Cisco 3660, Cisco 3640, and Cisco 3620 routers are 6-, 4- and 2-slot multiservice access routers, respectively, whose LAN and WAN connections are configured by means of interchangeable network modules and WAN interface cards. The Cisco 3660 also incorporates 1 or optionally 2 integrated 10/100 (Ethernet/Fast Ethernet) ports.The following network modules are available for the Cisco 3660, Cisco 3640, and Cisco 3620 routers:
Analog and Digital (T1) Voice Network Modules
Single-Port High-Speed Serial Interface (HSSI)
6, 12, 18, 24 and 30 digital modem network modules
LAN with modular WAN (WAN Interface Cards)
8 and 16 analog modem network modules
Channelized T1, ISDN PRI and E1 ISDN PRI network modules
Combined FastEthernet and PRI network modules
4- and 8-port ISDN BRI network modules
16- and 32-port asynchronous network modules
4- and 8-port synchronous/asynchronous network modules
1- and 4-port Ethernet network modules
1-port Fast Ethernet (10/100) network modules (100BaseT – “TX” and Fiber – “FX”)
8- and 16-port analog modem modules
Compression network module (Cisco 3620 and Cisco 3640, AIM for the Cisco 3660)
In addition the Cisco 3660 supports 2 internal AIM slots. The Data Compression Advanced Integration Module (AIM) for the Cisco 3660 Series delivers a cost-effective option for reducing recurring wide-area network (WAN) costs and maximizing the benefit of the advanced bandwidth management features of Cisco IOS. The Data Compression AIM takes advantage of either of the two available Cisco 3660 internal AIM slots, ensuring that external slots remain available for components such as integrated analog voice/fax, digital voice/fax, ATM, channel service unit/digital service units (CSU/DSUs), analog and digital modems.

The figure below shows how a vacant chassis slot on the Cisco 3640 accepts a mixed media network module, which in turn accepts a WAN interface card.
Cisco 2600 Series Modular Access Routers
Cisco Systems extends enterprise-class versatility, integration and power to branch offices with the Cisco 2600 series modular access router family, for an attractive price.
The Cisco 2600 series modular architecture offers network managers and service providers a branch office solution that provides the versatility needed to adapt to changes in network technology, as new services and applications become available. With full support of the Cisco IOS software, Cisco 2600 modular architecture provides the power to support the advanced Quality of Service (QoS), security, and network integration features required in today’s evolving enterprise and service provider networks.

The Cisco 2600 series shares modular interfaces with the Cisco 1600, 1700 and 3600 series, providing a cost-effective solution to meet today’s branch office needs for applications such as:
Secure Internet/intranet access with Firewall protection
Multiservice voice/data integration
Analog and digital dial access services
Virtual Private Network (VPN) access
While 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 Cisco’s 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 Integration
The Cisco 2600 Series reinforces Cisco’s 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, such 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 Protection
Many 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 can 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 solutions.
Cisco 2600 offers a variety of connectivity options with the reliability and high performance required to address today’s 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 today’s multiple device solutions gateways can be integrated into one Cisco 2600 configuration. Cisco 2600’s 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 2600’s 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 Cisco’s 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 solution
As part of Cisco’s 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 Port
Cisco 2621: Two 10/100 Mbps auto-sensing Ethernet Ports
Each 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.htm
Fixed-Configuration Desktop Access Routers
The 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 card
One ISDN BRI WAN port (RJ-45), with an integrated NT1 device
One Type-2 PCMCIA slot for Flash ROM card
One 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 card
Cisco 1003 and Cisco 1004 ISDN Routers
The 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 connector
One ISDN BRI port with an RJ-45 connector (the Cisco 1004 router includes an integrated NT1 device)
One console port with an RJ-45 connector
Console cable kit and power supply
One external PCMCIA slot for optional Type-2 Flash memory card
Software booting over an Ethernet LAN using TFTP
Optional Flash memory card to store software image and configuration files, allowing network-independent booting and software updates over the WAN or LAN connections
LAN-to-LAN DDR routing over ISDN lines
PPP compression and bandwidth-on-demand with load balancing for throughput up to 512 kbps
Increased 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 Telnet
Information about devices is from Cisco web site and it can be found on:
http://www.cisco.com/univercd/cc/td/doc/pcat/1000.htm
Bibliography:
IT proffesioanl