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As technology progresses, the difference between a router and a switch has grown less clear. Fundamentally, routers are Layer 3 (L3) products designed to connect networks. A common example is connecting an office Ethernet network to the Internet. Switches are L2 devices that interface various devices that share the same network. Basically, routers rely on processors to move data using complex algorithms, offering flexibility at the cost of speed. Switches, on the other hand, rely upon mostly predefined hardware designs to move data at the highest possible rate. Today's routers ordinarily come with Layer 2 switches, and many modern switches have Layer 3 routing functionality. Routers developed by Cisco, the producer of 90% of the industry's routers, have improved significantly in function and speed and Cisco makes an extensive product line that includes routers engineered to handle the needs of users ranging from households to the world's largest ISPs.

The most recent ISR routers from Cisco have the speed and integrated features to support IP voice and video plus virtual environments while at the same time providing fault tolerance, remote administration, easy scalability, and advanced protection. Cisco's ISR routers enable your business to establish a solid foundation for an IT environment that can grow seamlessly as you add new workers, establish new sites, activate additional capabilities, extend your network to customers and partners, and support an expanding mobile user base. Progent’s Cisco CCIE network consultants offer immediate and economical remote support to help your company to select, deploy, administer, update, and support Cisco's latest routers and can assist you to support your older routers or move efficiently to Cisco’s newer router solutions.

Cisco Routers Designed for Small Businesses and Remote Offices
Cisco’s routers for smaller companies and remote offices offer affordable and reliable no-frills alternatives that allow limited groups of users to share safe access to the Internet. These single-configuration desktop routers include at least four 10/100 switched Ethernet with Wi-Fi options plus built-in firewall to provide advanced protection. Designed for simple installation, administration, and support, Cisco’s entry-level routers minimize TCO by lowering equipment and operational expenses. Progent’s remote troubleshooting experts have extensive experience delivering immediate and economical technical help for small companies to set up and maintain these routers, and Progent’s CCIE-certified network consultants can assist your company to determine whether and how Cisco-s small office routers can add to the business value of your IT network.

Cisco Small Business RV Series Routers
Cisco's economical RV Series Routers are designed to provide small organizations with VPN technology that allows remote users to access a network without compromising security. Devices in the Cisco RV Series Routers can support up to 100 IPsec VPN tunnels, include 4-, 8-, or 16-port Ethernet switches, have integrated firewalls with sophisticated data encryption, and support web-based configuration for easy set up and troubleshooting. All RV Series devices support fast Ethernet and some models can handle Gigabit Ethernet. Wireless versions are offered. Cisco's RV Series routers do not incorporate Cisco’s IOS platform.

Cisco’s RV041 model Dual WAN VPN Router includes a 4-port 10/100 Ethernet switch and can safely handle up to 50 remote offices or off-site users through Internet Protocol Security or Point-to-Point VPN. Cisco's RV042G supports Gigabit Ethernet. Cisco's RV082 model VPN Router includes an 8-port 10/100 switch and can support up to 100 remote offices or online users with full IPsec VPN tunneling. Cisco's RV016 Multi WAN VPN Router has 16 switched 10/100 Ethernet ports, supports up to 100 remote connections, and allows as many as 7 switched ports to be set up for load balancing or for service provider backup to provide non-stop Internet connectivity.

Cisco's more current devices in the growing selection of RV Series VPN Wired/Wireless Routers include the Cisco RV120W wired/Wireless-N VPN with a 4-port switch and support for as many as 10 IPsec VPN tunnels and 1000 concurrent sessions, the Cisco RV180W Wireless-N VPN Router with a 4-port Gigabit Ethernet switch and support for 800 Mbps throughput and 10 VPN connections, the low-cost RV215W wired/Wireless-N Router with a 4-port switch and USB support for WAN connectivity, and Cisco's 325 RV325 WAN VPN Router with an integrated a 14-port Gigabit Ethernet switch and Dual Gbit WAN ports for business continuity plus USB ports attaching 3G and 4G modems for WAN failover.

Cisco 800 Family of ISR Routers
Cisco's comprehensive portfolio of 800 Series ISR routers is made up of desktop appliances designed and priced for small businesses, branch locations, retail venues, telecommuters, and clients of broadband service providers. Many devices in Cisco's 800 Series family of routers have been released with various options over many years. Cisco's 881 line of ISR routers suggests the vast array of options available within Cisco's 800 Series product family. Various models in Cisco's 881 Series router catalog can enable converged media environments by providing voice and video, wireless and data in one integrated appliance. Built-in security can include encryption, VPN, firewall, and URL filtering. For survivability, available features for 881 ISR routers include redundant wide area network connections or support for wired broadband WAN links such as DSL plus multiple different cellular 3G and 4G wireless WAN connections all on a single desktop appliance.

The basic Cisco 881 includes a 4-port fast Ethernet managed switch with up to 15 Mbps performance, support for up to 20 users, two-port integrated PoE, and IPv6 compatibility. Cisco's 881W router includes 802.11g/n Wi-Fi. The 881 SRST router features 4 FXS ports and 1 FXO port for public-switched-telephone-network (PSTN) fallback with Cisco SRST. With a Cisco CUBE license, Cisco's 881 ISR router allows SIP trunking as a replacement for outdated Primary Rate Interface (PRI) lines or FXO voice connectivity to a PSTN service provider. CUBE-based SIP trunks can also connect remote agents in Cisco Call Center environments.

Cisco Integrated Services Generation 2 Routers
Cisco's ISR G2 routers are intended to provide branch offices of large businesses with advanced collaboration, virtualization, security, and reliable WAN access. ISR G2 routers feature a design that protects prior investments in modules for older Integrated Services Routers and lowers future expenses by allowing field installation of additional modules as they are developed. In comparison to previous Integrated Services Routers, Cisco's ISR G2 routers feature 2-7 times higher throughput, far more, and easier support. All Cisco Integrated Services Generation 2 routers support Gbit switching and incorporate multi-core processors and multigigabit fabric for faster throughput. Integrated Services G2 routers also offer smart power management for improved energy efficiency.

A key advance with Integrated Services G2 routers is the Cisco IOS Software Universal image which includes all of the IOS feature sets so that your company can quickly authorize and deploy extra features as desired without having to acquire and copy a new IOS image over to yourCisco router. Progent's group of CCIE-certified network consultants can provide proven skills to help your business to plan, implement, and maintain multi-location installations of Cisco ISR Generation 2 routers that enhance satellite office productivity and reduce the costs of expansion and maintenance.

1900 Integrated Services G2 Routers
1900 Series ISR G2 routers offer on-board encryption, optional IOS firewall, intrusion prevention, and a maximum of 11 modular LAN switches. The 1941W router includes an WiFi access point that enables cordless connectivity to high-bandwidth data, voice, and video applications through MIMO technology that improves the range of existing 802.11a/b/g clients. Connectivity options for the Cisco 1941 and 1941W Integrated Services G2 routers include T1/E1, ADSL/SDSL, 3G, and GbE.

In comparison to the previous 1841 ISR router which they are able to substitute for, the 1900 Integrated Services G2 routers have 256 MB vs. 32 of flash storage as a default, and flash can be expanded to 4 gigabytes compared to 128 megabytes. Default dynamic RAM capacity is 256 megabytes compared to 128 and top dynamic RAM capacity is 2.25 gigabytes vs. 384 megabytes. Unlike the 1841 router, the 1900 Series ISR G2 routers feature a USB console in place of the older DB-9 connector and includes an add-in slot for the recently introduced ISM module rather than a slot for the previous and slower Advanced Integration Module. In contrast to top-of-the-line ISR Generation 2 routers, the 1941 Series ISR G2 routers do not allow redundant power supplies or slots for PVDM modules.

2900 Series ISR G2 Routers
2900 Series Integrated Services G2 Routers are released in four versions which are intended as upgrades to the models in Cisco’s popular 2800 router family. Cisco’s 2901, 2911, 2921, and 2951 Integrated Services G2 routers include integrated hardware encryption acceleration, voice and video capable DSP slots, optional firewall, Cisco IOS intrusion prevention, call processing, and from 16 to 50 LAN switchports. The on-board encryption hardware supports IP Security and Secure Sockets Layer VPN for safe remote access and is significantly higher performing than the AIM modules available with Cisco 2800 series routers. The high-end 2951 Series ISR G2 router supports 600 SIP sessions. Connectivity alternatives include T1/E1, T3/E3, xDSL, plus GE.

2911, 2921, and 2951 ISR G2 routers accommodate Cisco’s Enhanced EtherSwitch Service Modules, offering high-performance features identical to Cisco’s Catalyst 2960 and Catalyst 3650-E Series Switches. Compared to the previous 2821 ISR router that the Cisco 2921 ISR G2 router is designed to substitute for, the 2921 router is shipped by default with 256 MB as opposed to 64 megabytes of flash storage and can be loaded with up to 4GB vs. 256 MB. Standard dynamic RAM capacity is 512 megabytes vs. 256 and maximum DRAM capacity is 2.5 gigabytes instead of only 1.

3900 Series ISR G2 Routers
Cisco offers four models for the top-of-the-line 3900 Series ISR G2 router, the 3925, 3945, 3925E, and 3945E. These models deliver the highest throughput and slot densities in Cisco’s ISR Generation 2 family and can accept high-speed DSPs for the most demanding multimedia applications, accelerated hardware encryption, a broad selection of interface alternatives, a maximum 98 modular LAN Switchports, and up to 2,500 Session Initiation Protocol sessions. To preserve your investment, the Cisco 3900 ISR G2 routers include the Cisco Services Performance Engine, a versatile motherboard that can be swapped out in the field to enhance processing power without forcing you to buy a new device. Like other Integrated Services G2 routers, the 3900 family also protects past network investments by accepting most of the modules from first-generation Cisco Integrated Services Routers. For advanced availability, Cisco 3900 Integrated Services G2 offer two power supplies.

In comparison to the previous 3825 ISR router which the Cisco 2921 Integrated Services G2 router is intended to substitute for, the Cisco 3925 is offered by default with 256 MB vs. 64 MB of CompactFlash storage and can be loaded with up to 4 gigabytes instead of 256 megabytes. Default DRAM size is 1 gigabyte vs. 256 MB and maximum DRAM size is 4 gigabytes vs. 1 gigabytes.

Cisco 4000 Series Integrated Services Routers
The Cisco 4000 Series Integrated Services Routers are modular and expandable platforms intended for organizations with a large number of branches and remote workers who need direct communication with private data centers as well as public clouds via VPN tunnels and the Internet. The 4000 series delivers the bandwidth needed for distributed enterprise sites to accommodate mobile workers, Cloud-based services, and multimedia applications by utilizing wide area network optimization, deep packet inspection, and traffic-management technology. Devices in the 4000 family run Cisco's powerful IOS XE operating system, come in a 1-rack-unit (RU) or 2RU form factor, are able to support Up to 2 Gbps of traffic, and can have up to 3 interface module slots, 2 service module slots, 4 integrated Gigabit Ethernet switches, and 8 CPU core integrated server modules. Cisco ISR 4000 models can support integrated Gigabit Ethernet, T1/E1, T3/E3, PRI and xDSL. To handle unified communications, Cisco's 400o ISR provides extensive edge support for SBC, branch telephony survivability, and TDM gateways.

The main difference between Cisco's 4400 ISR and 4300 Series is the inclusion of redundant power supply support in the 4400 Series, offering a greater degree of availability. Cisco's 4321 ISR Router has a 1 RU desktop form factor and includes two network interface modules, provides up to 100 Mbps performance, and can handle 240 Digital Voice/Video Channels. Cisco's 4331 model has a 1 RU form factor with two NIMs, delivers as much as 300 Mbps performance, and can handle 360 Digital Voice and Video Channels. Cisco's 4351 router has a 2 RU package and includes three network interface modules, delivers up to 400 Mbps performance, and allows up to 720 Digital Voice and Video Channels. Cisco's power-redundant 4431 model has a 2 RU form factor and includes three network interface modules, delivers up to 1 Gbps throughput, and supports 720 Digital Voice and Video Channels. Cisco's fault-tolerant 4431 Integrated Services Router features a 2 RU package with three network interface modules, provides up to 2 Gbps throughput, and supports 1200 Digital Voice/Video Channels.

Cisco's First Generation ISR Routers
Cisco's first-generation Integrated Services Routers, with in excess of six million devices deployed, are the world's leading technology for small companies and enterprise satellite offices to ensure high-performance, safe, and reliable connectivity to strategic applications. Progent's CCIE network engineers are seasoned experts at providing online consulting, management, and troubleshooting services for Cisco 1800, 2800, and 3800 family ISR routers. Progent can assist your company to upgrade to the latest version of Cisco IOS control software with minimal service interruption to your IT operations, evaluate the security profile of your existing router configuration, and help your IT organization to move cost effectively to the latest line of Cisco ISR G2 routers when it makes competitive sense for your business.

Cisco 1800 ISR Routers
The Cisco 1800 Series of routers intelligently embed data and protection into one robust solution for high-speed, scalable delivery of vital business programs. The 1800 Series router architecture has been specifically developed to satisfy the requirements of small-to-medium-sized businesses, enterprise branch offices, and service provider-managed services applications for delivery of concurrent services at high speed. The integrated services systems architecture of the Cisco 1800 Series routers offers maximum flexibility and investment protection.

The Cisco 1841 integrated services router provides important advantages compared to previous generations of 1700 Series routers by delivering more than a fivefold throughput increase plus integrated hardware encryption activated by an optional IOS Software security image. The Cisco 1841 integrated services router dramatically improves interface card slot throughput and capacity in comparison to Cisco's 1700 Series while still providing compatibility with over 30 available WAN interface cards and multiflex trunk cards (voice/WICs-for data only). The 1841 integrated services router offers further improvement of VPN speed with an optional VPN acceleration module; an intrusion prevention system and firewall functions; compatibility with a broad array of connectivity requirements, such as support for integrated switch ports; and enough performance and slot capacity for ongoing network expansion and advanced applications.

Cisco 2800 Series Integrated Services Routers
Targeted at small to medium-sized businesses and corporate branch offices, Cisco's 2800 Series consists of four basic versions: the Cisco 2801, the Cisco 2811, the 2821, and the 2851 router. Cisco's 2800 Series routers provide substantial additional value in comparison to older models of Cisco devices at similar price points by delivering up to a 5x throughput improvement, up to a tenfold increase in security and voice performance, embedded service options, and radically enhanced plug-in slot performance and density while preserving compatibility with the vast majority of the almost 100 existing expansion modules in use currently for the 1700, Cisco's 2600 Series, and the 3700 devices.

Cisco's 2800 Series provides an array of common protection functions including a Cisco IOS Software Firewall, an IPS, IP security Virtual Private Network, Secure Sockets Layer (SSL) Virtual Private Network, powerful application inspection and management, Secure Shell (SSH) Protocol Version 2.0, and Simple Network Management Protocol in a single protected solution. Also, by incorporating security functions within the router itself, Cisco can provide special smart security functions other security appliances cannot, such as network admissions control for antivirus defense; V3PN for quality-of-service (QoS) support when mixing voice, video, and Virtual Private Networks; Dynamic Multipoint VPN; Group Encrypted Transport (GET); and Easy VPN for supporting more expandable and easier to manage VPN environments.

Businesses can use the Cisco 2800 router to create a converged IP telephony solution for as many as 96 IP telephones, and can safely deploy data, voice, and IP telephony on a single router for their small to midsize satellite offices.

Cisco 3800 Series Integrated Services Routers
3800 Series integrated services routers are designed for small-to-medium-sized businesses and corporate branch offices to offer companies the highest levels of network agility, performance, and intelligence. Cisco 3800 Series routers smoothly integrate advanced network engineering, adaptive services, and secure corporate communications into a single robust platform. The Cisco 3800 Series routers ease deployment and management, lower network cost and complexity, and provide investment protection. 3800 Series routers feature embedded security processing, excellent performance and large memory capacity, and high-density interfaces that deliver the speed, availability, and dependability necessary for scaling business-critical security, IP telephony, high-volume video, network monitoring, and Web programs in the most competitive corporate networks. Built for performance, the Cisco 3800 Series integrated services routers deliver multiple concurrent services as fast as wired T3/E3 rates.

The proprietary routing architecture of the 3800 Series router is engineered to combine security and voice processing with the latest wireline and wireless support for rapid deployment of new applications, including application layer operations, intelligent network services, and unified communications. The Cisco 3800 Series integrated services router meets the bandwidth demands of several 100Mbps interfaces for each slot, time-division multiplexing connections, and integrated power distribution to expansion modules compatible with 802.3af PoE, while still accommodating the existing selection of modular interfaces. This ensures ongoing return on investment by allowing network expansion or accommodating innovations in technology as the latest services are deployed. By combining the functions of multiple distinct appliances into a single small device, the 3800 router significantly lowers the expense and complexity of managing remote networks.

Cisco's Midrange WAN Edge Routers and Carrier-class Routers
Cisco’s midrange WAN aggregation and carrier routers offer enterprises with fast, secure headends to manage branch office and remote user traffic and to provide service providers economical wide area network edge routing. Cisco’s WAN aggregation and service provider router portfolio includes the Cisco 7600 Series Routers, the ASR 1000 Series Aggregation Services Routers, the ASR 9000 Series Aggregation Services Routers, and the Cisco CRS-X System.

Progent's nationwide group of CCIE certified network consultants have in-depth backgrounds helping global businesses and ISPs to design optimal deployments and seamless upgrades of Cisco's WAN edge routers. Progent's GIAC-certified information assurance experts can provide unbiased, independent security inventory assessments, penetration services and advanced Security information and Event Management (SIEM) solutions to help enterprises with Cisco's Aggregation Services Routers to meet business guidelines and statutory mandates for network information protection and reporting.

Cisco 7600 Series Integrated Services Routers
The Cisco 7600 Integrated Services router benefits from the Cisco Catalyst 6500 Series architecture by using an NEBS-3 compliant chassis, 256-Gbps crossbar, and 30-Mpps switching performance. Fault tolerance is provided via logic and hardware redundancy as well as IOS Software capabilities. In addition, the 7600 provides a broad array of high-touch network services at optical rates via a variety of Optical Services Modules powered by Cisco patented PXF technology.

The Cisco 7609 has the choice to select a 256-Gbps SFM or a 32-Gbps bus, delivering switching performance of 30 Mpps or 15 Mpps each. If the Switch Fabric Module is deployed, the 7609 can also allow distributed switching with rates up to 168 Mpps by running the Cisco Catalyst 6500 16-port Gigabit Ethernet network card, which is powered by the Distributed Forwarding Card (DFC) and the Switch Fabric Module.

The 7603 router provides only the standard 32-Gbps data bus version and provides 15 million packets per second performance. The Cisco 7603 Series does not offer Cisco's distributed switching.

Cisco ASR 1000 Aggregation Services Routers
Cisco’s ASR 1000 Aggregation Services family of routers is designed to fill the middle of Cisco’s midrange routers that focus on aggregating services at the WAN edge. Cisco’s ASR 1000 Aggregation Services routers provide a small footprint, single-product answer for enterprises requiring branch office aggregation at supergigabit Ethernet performance. Cisco’s ASR 1000 routers incorporate an innovative architecture that mixes hardware acceleration with software versatility to deliver a rich set of concurrent services without sacrificing consistent performance.

Cisco’s ASR 1000 routers include Cisco’s proprietary QuantumFlow Processor composed of 40 custom Packet Processing Engines that in combination can support up to 160 concurrent threads. This massive parallelism, combined with on-board acceleration for all services, enables the high-end ASR 1006 Aggregation Services router to expand up to 128K hardware queues, 32K subscribers, 4,000 IP security tunnels at 10,000 sessions/second, and 2 million Netflow records. This processing power permits ASR 1000 Series routers to deliver a wide variety of sophisticated services concurrently in high volume while avoiding throughput degradation that could violate adherence to SLAs. These advanced services include IOS Firewall, IPS, NAT, Flexible Packet Matching, and deep packet inspection. The ASR 1000 also permits sophisticated traffic management for performing numerous levels of Quality of Service to a data packet in one operation, improving the user experience for next-generation multimedia applications.

Cisco ASR 9000 Series Aggregation Services Routers
Cisco ASR 9000 Series Routers are designed as WAN-edge routers for service providers who are required to support the highest quality HD multimedia services to residential, business, and mobile users by offering zero downtime availability, high performance, and application awareness. All models in the ASR 9000 portfolio of Aggregation Services Routers are powered by Cisco's IOS XR operating system, a self-healing, distributed OS built for continuous uptime. Throughput of the Cisco ASR 9000 portfolio of Aggregation Services Routers can be expanded to as high as 96 Tbps per system. the ASR 9000 portfolio of Aggregation Services Routers support high-density Gigabit Ethernet (GE), 10 Gigabit Ethernet, and 100 GE and feature redundant fabric and power supply, power entry modules, and fan trays plus redundant switch fabric.

The ASR 9001 platform is a provider-edge router that comes in a 6 RU package with 120 Gbps of nonblocking fabric capacity. The Cisco ASR 9001 has two bays to support adapters for 1 GE, 10 GE, and 40 GE. The chassis has four 10 Gbit Ethernet SFP+ ports and ports for Stratum 1 clocking, building integrated timing supply (BITS), and management. The ASR 9904 Router has a 6 RU form factor and provides dense 10 and 100 Gigabit Ethernet connections in space-constrained sites. The 4-slot ASR 9094 can scale up to 4 Tbps of switching capacity in one box. The Cisco ASR 9912 Router comes in a 30 RU form factor with 12 slots slots that can handle up to 550 Gbps of switching capacity. The Cisco ASR 9912 Router has 2 route processors and 6+1 Fabric Cards to provide N+1 redundancy.

The CRS Carrier Routing System for Core Networks
Cisco's Carrier Routing System family, powered by Cisco's IOS XR high-availability operating system, offers carriers world-class capacity and availability. The Carrier Routing System product line was introduced in 2004, has been steadily improved, and now includes the world's most widely deployed multishelf network core router system. To preserve past investments in infrastructure, new Carrier Routing System models are compatible with previous products.

Available product lines in the Carrier Routing System family are the CRS-1, CRS-3, and CRS-X Series. Every CRS series features single-chassis 4, 8, and 16 slot units plus multiple-chassis versions. The CRS-1 product line is built on Cisco's Silicon Packet Processor technology and offers up to 92 Tbps throughput. Routers in Cisco's CRS-3 Series use Cisco's QuantumFlow Array technology and can provide up to 322 Tbps performance. Cisco's CRS-X Routers use CMOS photonics CPAK technology and have the ability to deliver up to 922 Tbps.

Cisco's Carrier Routing System Multichassis platforms can scale from 2 to 72 line-card shelves with the ability to provide 400-Gigabit per second of non-stop operations for each slot. CRS Multichassis platforms can support up to 8 fabric shelves. MSCs and physical layer interface modules are compatible throughout the complete Carrier Routing System product line.

Older Cisco Routers Supported by Progent's Network Professionals
Progent's CCIE engineers are familiar with older Cisco routers no longer offered by Cisco. Progent can help you to maintain these routers and can also assist you to prepare for and implement migrations to newer versions. Legacy Cisco routers maintained by Progent include:

• Cisco 500 Series Unified Communications Routers
  Cisco’s 520 model Secure Router, designed to support up to 50 users, features a 4-port 10/100 switch and a single IOS image. By offering a simple yet powerful set of Cisco IOS Software features, the Cisco 520 router streamlines setup, management, and technical support, yet nevertheless provides powerful security and performance alternatives to match the specific requirements of your business.

• Cisco 850 and 870 Model Unified Communications Routers
  Cisco's discontinued 850 Series routers are targeted at small networks, ideal for as many as 10 users or for teleworker sites where protected and affordable access is required. 850 Series access routers offer protected access with Stateful Inspection Firewall and IP security VPN support, a four-port 10/100 Ethernet switch, a secure WLAN 802.11b/g option with a single fixed antenna, and simple setup and deployment and off-site management capabilities through Web-enabled tools and Cisco IOS Software.

  Cisco's discontinued 870 routers are designed for small offices with as many as 20 users or for telecommuter environments where high-quality VoIP and video and reliable access utilizing backup Internet links are needed. Cisco 870 Series access routers deliver excellent performance in small offices as well as tight security through services such as Firewall, IP Security tunneling, 3DES or AES plus DMVPN and Tunnel-less Group Encrypted Transport (GETVPN), IPS, virus defense through Network Admission Control, and enforcement of secure access policies.

• Cisco 1700 Routers
  Cisco 1700 Series access routers are engineered to deliver an affordable, integrated e-business solution for small and medium-sized businesses. 1700 routers provide versatility and manageability to meet demanding e-business needs such as data/voice/video/fax integration, fast broadband Internet access, and comprehensive security options. 1700 Series routers have been replaced by Cisco's 1800 Series of ISR routers and the 1900 ISR Generation 2 routers.

• Cisco 2600 Series Routers
  The Cisco 2600 Series is a line of modular multiservice routers for branch sites, offering flexible LAN and WAN setup options, multiple security capabilities, and a range of high performance processors. 2600 Series routers have been replaced by Cisco's 2800 Series of integrated services routers and the Cisco 2900 Series Integrated Services Generation 2 routers.

• 3700 Routers
  The Cisco 3700 Series is a line of modular, multiservice solutions for mid-size and large office networks. Supported by over 70 modular interface add-in products, the 3700 product line provides a robust solution for data, voice video, Virtual Private Networks, and mixed-protocol data routing. 3700 Series routers have been superseded by Cisco's 3800 family of ISR routers and the 3900 Integrated Services Generation 2 routers.

• 7200 VXR Routers
  The 7200 VXR Integrated Services router delivers speed, modularity, and scalability in a compact form factor with a wide range of configuration options. With processing speeds as high as 2 million packets per second, port and service adapters ranging from NxDS0 to 1 GigE, and OC-3 as well as a variety of high-touch IP services, the Cisco 7200 VXR Series Integrated Services router is a solid services aggregation edge device for enterprises and service providers. The Cisco 7200 VXR Series router provides services aggregation by handling up to 16,000 PPP sessions per device, voice/video/data integration with time-division multiplexer (TDM)-enabled VXR frame and voice interface adapters, IP-to-IP gateway support, and IPsec VPN expandable to 5K tunnels per device.

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