Cisco 3800 Series Integrated Services Routers 
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 Cisco 3825 and Cisco 3845 
 Cisco Systems? Through a new integrated multi-service router series redefined the best enterprise routing the series after optimization can secure, wire-speed synchronous data, voice and video services. The Cisco? Built on the basis of 20 years of innovation and technology in Cisco 3800 Series Integrated Services Routers Cisco's leading position in the field of multi-service routing through the network to provide customers with unparalleled flexibility, performance and intelligence to consolidate. With transparent advanced technology, services and secure enterprise communications integrated into a single, resilient system can be adapted to the Cisco 3800 series routers simplify deployment and management, lower network cost and complexity, and provide unmatched investment protection. Cisco 3800 series routers with embedded security processing, substantial system and memory optimization, and new high-density interface can be provided in the most demanding enterprise environments scaling mission-critical security, IP telephone, business video, network analysis, and Web applications required performance, availability and reliability. Cisco 3800 series routers, the core of the design, excellent performance, to wire-speed T3/E3 offers a variety of synchronization services. 

 Figure 1 Cisco 3825 and Cisco 3845 integrated services routers 



 Product Overview 
 The Cisco 3800 series integrated services routing architecture is built on a strong basis of the Cisco 3700 series routers, embedded and integrated security and voice processing, and advanced services, and rapid deployment of new applications, including application layer functions, intelligent network services and converged communications. Cisco 3800 Series support slots multiple Fast Ethernet interface, time-division multiplexing (TDM) interconnections, and fully integrated 802.3af Power over Ethernet (PoE) distribution bandwidth requirements. While still supporting the existing modular interface series. This ensures continuing investment protection to support network expansion or changes in the deployment of new services and applications. By integrating the functions of multiple separate devices into a single compact device into the Cisco 3800 Series dramatically reduces the cost and complexity of the management of remote network. 

 The new models of the Series Cisco 3825 and Cisco 3845, three optional configurations for AC power, the AC power supply with integrated IP phone power support, and DC power. 

 Secure network for data, voice and video connections 
 As an important component of the Cisco Self-Defending Network, the Cisco 3800 series with industry embedded and integrated in the router's most comprehensive security services, providing customers with a resilient platform to rapidly deploy secure networks and applications. 

 Cisco integrated services routers to provide advanced security services and management features, such as built-in hardware encryption acceleration, IP security sex (IPSec) VPN (Advanced Encryption Standard [AES], Triple Digital Encryption Standard [3DES, DES, and multi-protocol Label Switching [MPLS]), stateful firewall protection, dynamic intrusion prevention (Intrusion Prevention System [IPS]), and URL filtering support. Cisco IOS security feature set to support all the rich security features, as well as network access control (NAC), Dynamic Multipoint VPN (DMVPN), and voice and video VPN (V3PN) and other applications. 

 In order to simplify the administration and configuration, the 3800 series also uses intuitive Web Cisco Router and Security Device Manager device (SDM). Security service management, each Cisco integrated services router supports Secure Shell 2 (SSHv2) and Simple Network Management Protocol Version 3 (SNMPv3) protocols to encrypt the management session. 


 Figure 2 with converged IP communications secure network connection 



 Converged IP Communications 
 As shown in Figure 2, Cisco 3800 series to meet the the IP communication requirements of the large and medium-sized branches, and provides industry-leading security within a single routing platform. Through the voice service is embedded in the router, Cisco provides customers with maximum deployment flexibility, as well as for workstations, relay and meeting the higher density. 

 Cisco 3800 series routers provide the award-winning Cisco IP telephony solution, Cisco CallManager Express (CME), as an optional feature set embedded in the Cisco IOS? Software being. This solution is suitable for the customers want to reduce the cost and complexity through the integration of voice and data network. Add a solution to this Cisco UnityTM Express Advanced Integration Module (AIM) or network module, small offices and branch offices may benefit from a comprehensive, integrated data, voice processing, voice mail and automated attendant system. Through a central Cisco CallManager for centralized IP Communications deployments, customers can deploy its Cisco 3800 series routers Remote Site Telephony functions (SRST), in order to achieve highly scalable, highly available enterprise IP communications. SRST is an important component of the Cisco end-to-end IP telephony products, provides a feature-rich call processing redundancy, but can also take advantage of the branches of the existing infrastructure. 

 Cisco 3800 series routers also has the widest range of voice gateway interfaces, network modules, extension voice module (EVM), voice interface card (VIC), voice / WAN interface card (VWIC) and onboard packet voice DSP module (PVDM ) a combination of demand for voice termination densities can be extended to meet the branch offices of all sizes. Customers have unprecedented scalability, support for up to 24 T1/E1 trunks and 88 foreign-exchange-station (FXS) ports for analog phones, fax machines, key systems, and conference workstation. 

 Integrated services 
 Figure 2 also shows a unique Cisco 3800 Series Integrated Services Architecture, customers are now available to traditional IP routing deploy IP communications, security and network module slot reserved for the more advanced services. With optional integration of a variety of service modules, the Cisco 3800 can easily own independent network infrastructure and components integrated into the Cisco 3800 Series chassis. Many network modules, such as the Cisco Network Analysis, Cisco voicemail, Cisco intrusion detection and Cisco Content Engine Network Module, have embedded processors and hard drives, allowing them to independent router running and can be managed from a single management interface they. This flexibility greatly expands the potential applications of the Cisco 3800 series, it goes beyond the traditional route, and still maintain the advantages of integration: convenient management solutions lower costs and faster deployment speed. 

 Key Features and Benefits 
 The global economy is increasingly dependent on networked enterprise applications and the Internet, as to meet the urgent business challenges indispensable tool. Successful companies need to be able to adjust quickly to support a dynamic business, and help enhance the competitive advantage and enhance the security of network efficiency, high-performance network. The network infrastructure to improve communication mode in case they need to invest in important technology and can not interfere with the core business functions. The safe operation of the Cisco 3800 Series helps companies in the networked economy, facilitate the deployment of the network services that will improve their business, and will not affect the existing operators or degrade network performance. 

 Table 1 Cisco 3800 Series features and benefits 
 Features Benefits 
 Architecture optimized for the expansion of services in this high-performance architecture is optimized for simultaneous service deployment. 
 This framework for future service expansion greater default and maximum memory. 
 PVDM slots can be installed on a digital signal processor (DSP) modules for packet voice processing. 
 Enhanced chassis interfaces help to achieve unprecedented levels of performance and service density. 
 Senior service interface directly to application integration into the router, no separate facilities: 

 Network Analysis Module (NAM) - Integrated traffic monitoring helps application-level visibility into network traffic for remote troubleshooting and traffic analysis. 
 Cisco Intrusion Detection System (IDS) module - Cisco IDS module is able to check all traffic through the router interface, identify unauthorized or malicious behavior, such as hacker attacks, worms or denial-of-service attacks; and halt illegal traffic to suppress the threat. 
 Cisco Content Engine Network Module provides application layer services, including Web application acceleration, commercial video streaming, software distribution, and URL filtering 

 Embedded security processing and the best security features support for uninstall encryption services processing integrated hardware, no separate module that supports IPSec DES, 3DES and AES 128, AES 192 and AES 256 encryption. 
 Cisco IOS software features support for the identification of security threats, prevent and adjust, and maintain a self-defense network, including Cisco SDM 2.0, NAC (anti-virus), Dynamic Multipoint VPN, dynamic feeder IDS, Cisco IOS Firewall, and URL filtering function. 

 Ideal platform for integrated IP telephony onboard DSP-integrated the PVDM support analog voice, digital voice, conference, voice transcoding and Secure Real-time Transport Protocol (SRTP) media, while supporting network module or AIM slots for switching, concurrent applications, content, and voice mail. DSP helps to support packet voice technology, VoIP protocols including H.323, Media Gateway Control Protocol (MGCP) and the process of Initiation Protocol (SIP); voice over Frame Relay; (including ATM adaptation layer 5 (AAL5) and ATM Voice and AAL2 adaptation layer). 
 This platform offers scalability for centralized and distributed call processing: 

 With centralized Cisco CallManager SRST - up to 480 call 
 Cisco Unity Express (CUE) voice mail - up to 100 mailboxes 
 Cisco CallManager Express IP phone from -24 to 240 IP phones 
 Of all sizes the branch connection - up to 24 T1/E1 relay 
 Analog phones, fax machines, key systems, and conference workstation - up to 88 FXS port 
 Local or remote call EVM module - up to 48 foreign exchange office (FXO) or 32 Basic Rate Interface (BRI) port 
 The Cisco IOS software provides customized features and applications, such as Tool Command Language (TCL) and Voice Extensible Markup Language (VXML) support. 
 Security can be achieved through Cisco CallManager and Cisco IP phones using Cisco 3800, call: 

 Use IPSec, Transport Layer Security (TLS) and Secure Real Time Protocol (SRTP), IP phone, IP phone to analog phone or public switched telephone network (PSTN) gateway provides a standards-based secure media and signaling authentication and encryption . 
 Maintain high complex codec channel capacity. 

 Investment to protect supported on the Cisco 3800 series can be upgraded in the field of modular components, so customers do not need to upgrade the entire network of branches that can easily change the network interface. Cisco 3800 series utilize the existing WIC, VIC, network modules, and the AIM series, reducing the backup, training, configuration, installation and maintenance costs.