Used Cisco Routing Overview

Routing is the act of moving information across an internetwork from a source to a destination. Along the way, at least one intermediate node typically is encountered. Routing is often contrasted with bridging, which might seem to accomplish precisely the same thing to the casual observer. The primary difference between the two is that bridging occurs at Layer 2 (the link layer) of the OSI reference model, whereas routing occurs at Layer 3 (the network layer). This distinction provides routing and bridging with different information to use in the process of moving information from source to destination, so the two functions accomplish their tasks in different ways.

Integrated Services Routers

The Cisco 800 Series Routers are built for small offices and include firewalls, VPNs, and wireless LANs at broadband speeds. The Cisco 870 Series features include the following: Intrusion Prevention Systems (IPS), Quality of Service (QoS) for voice over IP (VoIP), demilitarized zone (DMZ), dial backup, and out-of-band management.

The Cisco 1800 Series Integrated Services Routers come with a wide variety of LAN and WAN options. These modular, fixed configuration modules have 10/100 Ethernet asymmetric DSL (ADSL) over ISDN, Basic Rate Interface (BRI) (Cisco 1801, 1802, 1803, and 1812 routers) or analog modem (Cisco 1811) backup interfaces.

The Cisco 2800 Series Routers are built for small to medium-sized businesses. These secure routers come with wire-speed delivery of concurrent data, voice, and video services. These secure routers have the following features: enable 1-6 T1/E1 links, Stateful Firewalls, Intrusion Prevention Systems (IPS), VPNs, Cisco Network Admission Control (NAC), built-in encryption uses Digital Encryption Standard
(DES), Triple DES (3DES), Advanced Encryption Standard (AES), and integrated IEEE 802.11 a/b/g standalone access-point high-speed WAN interface cards (HWICs).

The Cisco 3200 Series Rugged Integrated Services Routers support voice, video, and data applications over Ethernet, serial, fiber (the 3270 module), and multiple types of wireless interfaces. These rugged outdoor fixed environments routers support wired interfaces, RJ-45, asynchronous serial, synchronous serial (Cisco 3270 only), and universal serial bus (USB) (Cisco 3270) only). These mobile routers are built for industry-standard PC/104+ design for embedding routing applications in custom enclosure designs. 

The Cisco 3800 Series Integrated Services Routers can run concurrent data, security, voice, and advanced services at wire speeds up to T3/E3.  These resilient routers come with Online Insertion and Removal (OIR), redundant systems, high-speed HWICs, enhanced security, expanded default and maximum memory capacity with Error Correction Code (ECC) Double Data Rate (DDR) synchronous dynamic RAM (SDRAM) memory detects and corrects SDRAM errors without user intervention, integrated IEEE 802.11 a/b/g standalone access-point HWICs, and wireless LAN controllers.

Aggregation Routers

The Cisco ASR 1000 Series Aggregated Services Routers support various Shared-Port-Adapter (SPA) densities, and modular route processors, forwarding processors. The ASR 1000 Series has up to 15 Mpps forwarding performance. They have a wide variety of service provider features and deployments.

The Cisco 7200 Series Routers are optimized OC-3/Gigabit Ethernet WAN-edge routers and come with the following features: 1-rack unit (1RU) or 3RU chassis, 1-, 4-, or 6-slot modules, 1 I/O slot (for the 4- and 6-slot modules), choice of system processors (network processing engines [NPEs]) for up to 2-Mpps performance (Cisco 72-1 comes with built-in NPE), gigabit Ethernet connectivity, and a wide variety of LAN and WAN options.

The Cisco 7300 Series Routers deliver high-performance: The Cisco 7304 network edge router comes with IP services at optical speeds for service providers and business networks. The Cisco 7301 broadband and WAN edge router comes with port-adapter modularity and is a 1-rack unit (1RU) form factor.

The Cisco 7600 Series Routers consolidate WANs, metropolitan-area networks (MAN), and LANs in a single platform. These integrated routers come with the following features: backplane bandwidth scaling from 32-720 Gbps, and performance from 30-400 Mpps with Cisco Catalyst 6500 Series Supervisor Engine 720 or RSP720 engine and distributed forwarding line cards. They have a high-volume aggregation of service-enabled Ethernet and a wide range of WAN and MAN interfaces. They are perfect for service provider edge, MAN, and triple-play (data, voice, and video) deployments.

Service Aggregation Routers

The Cisco 10700 Series Routers are service provider-class metropolitan (metro) edge services routers. They have either 24 10/100 or 4 Gigabit Ethernet and 8 Fast Ethernet ports for customer access and OC-48c/STM-16c Dynamic Packet Transport/Resilient Packet Ring (DPT/RPR) technology or Packet over SONET (PoS) for metro optical connectivity. They support IEEE 802.17 standard-compliant RPR technology.

The Cisco XR 12000 and 12000 Series Routers are service provider-class multiservice-edge routers that are designed to converge IP network infrastructures. These routers support: edge-optimized line cards, up to nine chassis options, Packet over SONET/SDH (PoS), ATM, Ethernet, Dynamic Packet Transport/Resilient Packet Ring (DPT/RPR) and copper, and other service related enhancements.

Cisco Routers - Part Numbers Listed Alphabetically

Browse Through Some of Our Categories of Cisco Equipment:

• Cisco Routing (Integrated Services Routers, Aggregation Routers, and Service Aggregation Routers),
• Cisco LAN Switching (Modular Switching, Fixed Configuration),
• Cisco Wireless LAN (SMB Wireless, Enterprise Wireless),
• Cisco Video, Voice, and Unified Communications (Communications Infrastructure, IP Telephony),
• Security Appliances (Network Security),
• Data Center Networking (Application Acceleration, Data Center Switching, Fibre Channel Switching, WAN
  Optimization),
• Video and Broadband Cable (Video, Broadband Cable),
• Optical Networking (Metro Core; Metro, Regional, and Long-Haul DWDM; and Metro Edge Access).