CISCO 3845 

Condition: 8-9% new 

Configuration: 128M FLASH, 256M DRAM

The machine was originally a spare part in the machine room, and its fineness and performance are very good, and no maintenance records are guaranteed

Ear 100 yuan/pair

Cisco 3825 and Cisco 3845

Cisco Systems ® Redefines the best enterprise routing with a new series of integrated multi-service routers that have been optimized to provide synchronized data, voice and video services securely and at wire speed. The Cisco® 3800 series integrated multi-service routers are built on the basis of 20 years of Cisco''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s innovative technology. By providing customers with unparalleled network flexibility, performance and intelligence, it has consolidated Cisco''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s leading position in the field of multi-service routing. By transparently integrating advanced technology, adaptable services, and secure enterprise communications into a single, sustainable system, the Cisco 3800 series routers simplify deployment and management, reduce network costs and complexity, and provide unmatched investment protection. Cisco 3800 series routers have built-in security processing, substantial system and memory optimization, and new high-density interfaces to provide extended mission-critical security, IP telephony, business video, network analysis, and Web applications in the most demanding enterprise environments Performance, availability and reliability. The design core of Cisco 3800 series routers is excellent performance, which can provide multiple synchronization services at wire-speed T3/E3.

Figure 1 Cisco 3825 and Cisco 3845 integrated services routers

product description

The integrated service routing architecture of the Cisco 3800 series is built on the basis of the powerful Cisco 3700 series routers. It embeds and integrates security and voice processing and advanced services to rapidly deploy new applications, including application layer functions and intelligent network services And converged communications. The Cisco 3800 series supports multiple Fast Ethernet interfaces per slot, time division multiplexing（TDM）Interconnection, and support for 802.3af Ethernet power supply（PoE）Bandwidth requirements such as fully integrated power distribution. It also supports the existing modular interface series. This ensures continuous investment protection and can support network expansion or technological changes as new services and applications are deployed. By integrating the functions of multiple independent devices into a single compact device, the Cisco 3800 series greatly reduces the cost and complexity of managing remote networks.

The new models in this series are Cisco 3825 and Cisco 3845, with three optional configurations for AC power, AC power with integrated IP phone power support, and DC power.

Secure network connection for data, voice and video

As an important component of Cisco''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s self-defending network, the Cisco 3800 series has the most comprehensive security services embedded and integrated in routers in the industry, providing customers with a sustainable platform for rapid deployment of secure networks and applications.

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

To simplify management and configuration, the 3800 series also uses an intuitive Web-based Cisco router and security device manager（SDM）. To achieve secure service management, each Cisco integrated services router supports Secure Shell 2 (SSHv2) and Simple Network Management Protocol version 3 (SNMPv3) protocols to encrypt management sessions.

Figure 2 Secure network connection with converged IP communication

Converged IP communication

As shown in Figure 2, the Cisco 3800 series meets the IP communication requirements of medium and large branches and provides industry-leading security in a single routing platform. By embedding voice services in the router, Cisco provides customers with the highest deployment flexibility, as well as higher density for workstations, trunks, and meetings.

The Cisco 3800 series routers provide the award-winning Cisco IP telephony solution, Cisco CallManager Express (CME), which is embedded in the Cisco IOS® software as an optional feature set. This solution is suitable for customers who want to reduce cost and complexity by converging voice and data networks. By adding a Cisco UnityTM Express advanced integration module to this solution（AIM）Or network module, small organizations and branches can benefit from comprehensive and integrated data, voice processing, voice message and automatic answering systems. For larger centralized IP communication deployments, customers can deploy remote emergency call functions in their Cisco 3800 series routers through a central Cisco CallManager（SRST）, In order to realize the highly scalable, highly available enterprise IP communication. SRST is an important component of Cisco''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s end-to-end IP telephony products, providing feature-rich call processing redundancy while also leveraging the existing infrastructure of branch offices.

Cisco 3800 series routers also have the widest range of voice gateway interfaces, using network modules, extended voice modules (EVM), voice interface cards (VIC), voice/WAN interface cards (VWIC) and on-board packet voice DSP modules (PVDM) The combination of, can be expanded to meet the voice termination density requirements of branches of various sizes. Customers can have unprecedented scalability, supporting up to 24 T1/E1 trunks and 88 external exchange stations（FXS）Port, used for analog phones, fax machines, key systems and conference workstations.

Integrated service

Figure 2 also shows the fact that through the unique integrated service architecture of the Cisco 3800 series, customers can now use traditional IP routing to safely deploy IP communications and reserve network module slots for more advanced services. With the optional integration of multiple service modules, the Cisco 3800 can easily integrate the functions of independent network facilities and components into the Cisco 3800 series chassis. Many network modules, such as Cisco Network Analysis, Cisco Voice Message, Cisco Intrusion Detection, and Cisco Content Engine network modules, have embedded processors and hard drives, allowing them to operate primarily independently of the router and manage them from a single management interface. This flexibility greatly expands the potential applications of the Cisco 3800 series, allowing it to surpass traditional routing while still maintaining the advantages of integration: convenient management, lower solution costs, and faster deployment speed.

Main features and advantages

The global economy is increasingly dependent on networked enterprise applications and the Internet as an indispensable tool for meeting urgent business challenges. Successful companies need secure, high-performance networks that can quickly adjust to support dynamic business, and help improve competitive advantage and network efficiency. They must invest in network infrastructure that adopts important technologies and can improve communication modes without interfering with core business functions. The Cisco 3800 series helps companies operate safely in a networked economy and easily deploy network services that will improve their business without affecting existing operations or degrading network performance.

Table 1 Features and advantages of the Cisco 3800 series