CISCO3945E-V/K9 Cisco 3945E 4 Ports Router Voice Bundle Refurbished

The CISCO3945E-V/K9, commonly known as the Cisco 3945E, is a powerful router designed to cater to the diverse networking needs of businesses. This router, equipped with 4 ports and bundled with voice capabilities, falls under the category of Integrated Services Routers (ISRs). In this comprehensive guide, we'll delve into the key features, specifications, and applications of the Cisco 3945E, exploring how it serves as a robust solution for organizations seeking a reliable and efficient networking infrastructure.

The CISCO3945E-V/K9 is part of Cisco's 3900 Series Integrated Services Routers, renowned for their versatility and performance. This router model, in particular, stands out due to its inclusion of 4 ports and a voice bundle. Let's break down these features to understand their significance.

• 4 Ports Configuration: The Cisco 3945E comes equipped with 4 ports, providing ample connectivity options for various devices within a network. These ports support high-speed data transfer, ensuring efficient communication between connected devices. This feature is particularly valuable in environments where multiple devices need to be seamlessly integrated, such as in a business setting with numerous workstations and peripherals.
• Voice Bundle Integration: One of the distinguishing features of the CISCO3945E-V/K9 is its voice bundle integration. This signifies the router's ability to handle voice communication, making it an ideal choice for organizations with Voice over Internet Protocol (VoIP) requirements. VoIP enables voice communication over the Internet, offering a cost-effective and scalable solution for businesses. The inclusion of a voice bundle in the Cisco 3945E streamlines the implementation of VoIP services, consolidating voice and data functionalities into a single, robust platform.

To better understand the capabilities of the Cisco 3945E, it's essential to explore its key features, each contributing to its overall performance and reliability.

• High Performance: The Cisco 3945E is designed for high-performance networking, capable of handling demanding tasks and large amounts of data. With advanced hardware and processing capabilities, this router ensures that data is transmitted efficiently, minimizing latency and enhancing the overall user experience.
• Security Features: Security is a paramount concern in modern networking, and the Cisco 3945E addresses this by incorporating a comprehensive set of security features. These may include firewall capabilities, VPN (Virtual Private Network) support, and intrusion prevention systems, safeguarding the network against potential threats and unauthorized access.
• Scalability: Businesses evolve, and so do their networking needs. The Cisco 3945E is designed with scalability in mind, allowing organizations to expand their network infrastructure as requirements grow. This scalability ensures that the router remains a viable and cost-effective solution in the long term.
• Modular Design: The router's modular design is another standout feature, allowing users to customize and expand its functionality by adding modules and interfaces. This adaptability is particularly advantageous as it enables businesses to tailor the router to their specific needs, whether it involves additional connectivity options or specialized services.

• Understanding the technical specifications of the CISCO3945E-V/K9 is crucial for those looking to deploy it in their network infrastructure. Let's delve into the specifications that make this router a reliable and high-performing choice.
• Processor and Memory: The Cisco 3945E is equipped with a powerful processor and ample memory to handle the demands of modern networking. The specific processor model and memory capacity contribute to the router's ability to efficiently process and manage data traffic.
• Ports and Interfaces: As mentioned earlier, the Cisco 3945E features 4 ports, providing essential connectivity. Additionally, it offers a variety of interfaces, including USB and Ethernet ports, enabling seamless integration with different devices and peripherals.
• Voice Capabilities: The voice bundle integration encompasses features such as voice codec support, echo cancellation, and QoS (Quality of Service) settings specifically tailored for voice traffic. These specifications ensure clear and reliable voice communication over the network.
• Dimensions and Form Factor: The physical dimensions and form factor of the router are crucial considerations, especially for organizations with limited space. The Cisco 3945E's compact design allows for flexible deployment options while maintaining robust performance.

To illustrate the practical applications of the CISCO3945E-V/K9, let's explore some common use cases where this router excels.

• Enterprise Networking: In large enterprises with diverse networking needs, the Cisco 3945E can serve as a central hub for data and voice communication. Its high-performance capabilities and scalability make it suitable for managing the complex networking requirements of large organizations.
• VoIP Deployments: The inclusion of a voice bundle makes the Cisco 3945E an excellent choice for businesses implementing VoIP solutions. Whether it's a call center or a distributed workforce requiring reliable voice communication, this router can effectively handle the demands of VoIP deployments.
• Branch Office Connectivity: For organizations with branch offices, the Cisco 3945E offers a reliable solution for connecting remote locations to the main network. Its modular design allows for the addition of interfaces to support various connectivity options, ensuring seamless communication between different branches.

Before deploying the CISCO3945E-V/K9 in network infrastructure, several considerations should be taken into account:

• Network Requirements: Understanding the specific networking requirements of the organization is crucial. This includes the number of devices, the type of data traffic, and the need for voice communication.
• Future Growth: Scalability is an essential factor, especially for businesses anticipating growth. Choosing a router that can seamlessly accommodate an expanding network ensures a cost-effective and future-proof solution.
• Security Policies: Network security is paramount, and the router's security features should align with the organization's security policies. This includes considerations for data encryption, access control, and threat detection.

Quality of Service (QoS) and Traffic Management on the Cisco 3945E

Quality of Service (QoS) and traffic management are important features that can be used to ensure that critical applications and services receive the necessary bandwidth and resources on a Cisco 3945E Voice Bundle Integrated Services Router. The CISCO3945E-V/K9 router includes several QoS and traffic management features that can be used to prioritize and shape network traffic, including:

• Class-Based Weighted Fair Queuing (CBWFQ) - This is a queuing algorithm that assigns different priorities to different types of traffic, based on predefined class maps. This allows for the prioritization of important traffic such as voice and video, while still allowing other traffic to be transmitted.
• Low Latency Queuing (LLQ) - This is a queuing algorithm that prioritizes delay-sensitive traffic such as voice and video over other traffic. It uses a strict priority queue to ensure that delay-sensitive traffic is transmitted as soon as possible.
• Traffic Policing and Shaping - These features allow for the control of incoming and outgoing traffic on a per-interface basis. Traffic policing can be used to limit the rate of incoming traffic, while traffic shaping can be used to delay outgoing traffic to control the rate at which it is transmitted.
• Quality of Service Marking - The router allows for the marking of packets with specific DSCP (Differentiated Services Code Point) values, which can be used to identify the priority of the traffic. This marking can be used to ensure that the packets receive the appropriate priority when traversing other network devices.
• MQC (Modular Quality of Service Command-Line Interface) - MQC is a command-line interface that allows for the configuration of QoS and traffic management on the router. It enables the use of various queuing, scheduling, and congestion management methods, and also enables the creation of class maps and policy maps.

Power over Ethernet (PoE) and EnergyWise Capabilities

The CISCO3945E-V/K9 Cisco 3945E Voice Bundle Integrated Services Router is capable of supporting Power over Ethernet (PoE) and EnergyWise capabilities.

• Power over Ethernet (PoE) - The CISCO3945E-V/K9 is capable of providing power over Ethernet (PoE) to connected devices through the Ethernet ports. This allows for devices such as IP phones and wireless access points to receive power through the same cable that is used for data connectivity, eliminating the need for separate power outlets for these devices.
• EnergyWise - The CISCO3945E-V/K9 has EnergyWise capabilities, which is a Cisco technology that enables energy management and monitoring of network devices. EnergyWise allows the router to monitor power consumption and adjust power usage accordingly, such as by shutting down idle devices or reducing power to non-critical devices. This can help to reduce energy costs and improve overall network efficiency.

To use these capabilities, you will need to configure the router to support PoE and EnergyWise. This can be done through the Cisco IOS command-line interface (CLI) or a management tool such as Cisco Prime Infrastructure. Additionally, the devices that you want to connect to the router must be compatible with PoE and EnergyWise.

It's important to note that to use PoE and EnergyWise capabilities, you will need to have the appropriate access and permissions, as well as a good understanding of Cisco IOS and network management concepts, and you may need to purchase additional hardware and software licenses.

High Availability and Redundancy Options for the Cisco 3945E

The CISCO3945E-V/K9 Cisco 3945E Voice Bundle Integrated Services Router supports many high availability and redundancy options to ensure that the router is always available and that network traffic is always being routed correctly. Some of the options for high availability and redundancy include:

• HSRP (Hot Standby Router Protocol) - HSRP is a Cisco proprietary protocol that allows multiple routers to work together to present the appearance of a single virtual router to hosts on a LAN. This allows for redundancy in case one of the routers fails.
• VRRP (Virtual Router Redundancy Protocol) - VRRP is an open standard protocol that allows multiple routers to work together to present the appearance of a single virtual router to hosts on a LAN. This allows for redundancy in case one of the routers fails.
• GLBP (Gateway Load Balancing Protocol) - GLBP is a Cisco proprietary protocol that allows multiple routers to work together to present the appearance of a single virtual router to hosts on a LAN and also load balance the traffic between the routers. This allows for redundancy in case one of the routers fails and also improves the network traffic flow.
• Redundant Power Supply - The Cisco 3945E Voice Bundle Integrated Services Router supports a redundant power supply, which allows the router to continue operating even if one of the power supplies fails.
• Redundant WAN connections - The Cisco 3945E Voice Bundle Integrated Services Router can have multiple WAN connections, which can be configured as active-standby or active-active. This allows for redundancy in case one of the WAN connections fails.
• Cisco ISSU (In-Service Software Upgrade) - Cisco ISSU allows the software of the router to be upgraded without taking the router down. This allows for high availability of the router during software upgrades.

It's important to note that to implement these high availability and redundancy options, you will need to have the appropriate access and permissions, as well as a good understanding of Cisco IOS and network management concepts.

• Manufacturer: Cisco
• Part Number or SKU# CISCO3945E-V/K9
• Product Series: 3900
• Product Model: 3945E
• Product Name: 3945E Integrated Services Router
• Product Type: Router

• Total Number of Ports: 4
• Powerline: No
• Management Port: Yes
• Number of Total Expansion Slots: 9

• Network Technology: 10/100/1000Base-T
• Ethernet Technology: Gigabit Ethernet
• VoIP Supported: No

• PoE (RJ-45) Port: Yes
• Redundant Power Supply Supported: Yes

Outline, the CISCO3945E-V/K9 Cisco 3945E 4 Ports Router Voice Bundle Integrated Services stands as a robust solution for organizations seeking a versatile and high-performance networking infrastructure. With its 4 ports, voice bundle integration, and a host of features catering to performance, security, and scalability, the Cisco 3945E is well-suited for a variety of applications, from enterprise networking to VoIP deployments and branch office connectivity. Understanding its technical specifications, key features, and practical use cases is essential for making informed decisions when considering the deployment of this router in a network environment. As technology continues to advance, the Cisco 3945E remains a reliable and adaptable choice for meeting the evolving needs of modern businesses.