Security and Redundancy
? IEEE 802.1d Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance
? TACACS+ enables designation of a separate access server for authentication, authorization, and accounting (Enterprise Edition only)
? User-selectable address learning mode simplifies configuration and enhances security
? Resilient link support for faster recovery from network failures
Scalability
? Fast EtherChannel provides up to 400 Mbps of bandwidth to switches, routers, and servers by enabling parallel bandwidth links between switches (with Enterprise Edition software).
? Cisco Group Management Protocol (CGMP) enables a switch to selectively and dynamically filter and forward routed IP multicasts to targeted multimedia end stations, optimizing bandwidth for applications such as Intranet, video-conferencing and IPTV.
? Overlapping bridge groups control broadcasts within the switch to manage bandwidth and provide added security.
? Broadcast control for end stations with up to 1024 administrator-defined, port-based VLANs. VLANs can be distributed across multiple switches with Cisco`s dynamic Inter-Switch Link (ISL) trunking on 100BaseT ports (with Enterprise Edition software).
? Support for optional Cisco 600-watt redundant AC power system provides a backup power source for up to four units for improved fault tolerance and network uptime.
Flexible Network Configuration
? No per-port Media Access Control (MAC) addresses limitations ? provides flexibility to connect to individual users or shared hubs. Support for 1024 MAC addresses on Catalyst 1900 and up to 8192 addresses on Catalyst 2820. Allows switch to scale with a growing network
? Configurable network port that supports unlimited MAC addresses for backbone connectivity
Management
? Web-based secured interface allows user to configure and manage the switch from any client on the internet with a web-browser
? Simple Network Management Protocol (SNMP) and Telnet support delivers comprehensive in-band manageability, and a menu-based management console provides out-of-band manageability
? Supports four groups of embedded RMON (history, statistics, alarms, and events). Support for all nine RMON groups through use of a SwitchProbe Analyzer port that permits traffic monitoring of a single port, a group of ports, or the entire switch from a single network analyzer or RMON probe. (Enterprise Edition only)
? Cisco Discovery Protocol (CDP) enables a CiscoWorks network management station to automatically discover the switch in a network topology
? Autonegotiation on 100BaseTX ports automatically selects half- or full-duplex transmission mode to optimize bandwidth
? Domain Name Service (DNS) eases network administration by enabling logical name assignments. Network Administrators can specify an end system or Catalyst 1900/2820 by name, rather than address.
? Dynamic Host Configuration Protocol (DHCP) support eases network administration by automatically requesting an IP address from any network DHCP server.
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http://www.cisco.com/univercd/cc/td/doc/pcat/ca2820.htm
Cisco 3600 Series ? Modular, High-Density Access Routers
Product Overview
The Cisco 3600 series is a multifunction platform that combines dial access, routing, and LAN-to-LAN services and multiservice integration of voice, video and data in the same device. The Cisco 3600 series includes the Cisco 3660, the Cisco 3640, and Cisco 3620 multiservice platforms. As modular solutions the Cisco 3660, the Cisco 3640, and Cisco 3620 have the flexibility to meet both current and future connectivity requirements. The Cisco 3600 series is fully supported by Cisco IOS software, which includes analog and digital voice capability, ATM access with T1/E1 IMA or OC-3 interfaces, dial-up connectivity, LAN-to-LAN routing, data and access security, WAN optimization, and multimedia features.
The Cisco 3660 has six network module slots; The Cisco 3640 has four network module slots; the Cisco 3620 has two slots. Each network module slot accepts a variety of network module interface cards, including LAN and WAN mixed media cards supporting Ethernet, Fast Ethernet, Token Ring, and a variety of WAN technologies. These cards provide the foundation of LAN and WAN connectivity on a single, modular, network module. Additional applications are supported with a series of network module cards offering digital modems, asynchronous and synchronous serial, ISDN PRI, and ISDN BRI interfaces. In addition to the 6 network module slots the Cisco 3660 has 2 internal Advanced Integration Module (AIM) slots for applications such 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.
Key Features and Benefits
The Cisco 3660, Cisco 3640, and Cisco 3620 routers support the following network applications and services:
? Analog and digital voice 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
? ATM networking services
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.
? Dial-up services
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.
? ISDN PRI networks
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.
? ISDN BRI networks
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.
? Serial networks
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.
? Mixed WAN services
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.
? LAN-to-LAN services
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)
? ATM 25 Mbps Network Module
? ATM OC3 155 Mbps Network Module
? 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
? 4-port serial network module
? 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
Product Overview
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
? Inter-VLAN routing
? Routing with Bandwidth Management
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.
? Analog and Digital Dial Services
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.