Cisco CISCO2921/K9 256MB Router 3 Ports SFP Ethernet WAN Refurbished

The Cisco CISCO2921/K9 2921 Integrated Services 256 MB Router is a versatile and powerful networking device designed to meet the demands of modern businesses and organizations. In this comprehensive guide, we will delve into the various aspects of this router, from its key features to its hardware specifications. Whether you're considering purchasing one for your organization or just curious about its capabilities, this article will provide you with all the information you need to know.

The Cisco CISCO2921/K9 2921 Integrated Services Router is a part of Cisco's renowned 2900 series routers. These routers are known for their robust performance and wide range of features that cater to the needs of small and medium-sized businesses as well as larger enterprises. They are designed to provide a seamless and secure networking experience, making them an essential part of any modern IT infrastructure.

Let's explore some of the key features that make the Cisco CISCO2921/K9 2921 Integrated Services Router stand out:

The router comes equipped with three ports, allowing for greater connectivity options. These ports can be used for various purposes, such as connecting to local area networks (LANs), wide area networks (WANs), and more.

The inclusion of four High-Speed WAN Interface Card (HWIC) slots gives users the flexibility to add expansion cards to meet specific networking requirements. This modularity allows for a customized approach to networking, as different HWICs can be added as needed.

The Cisco CISCO2921/K9 2921 router is equipped with 256 MB of RAM, which is crucial for efficient data processing and handling complex networking tasks. With this ample amount of memory, the router can handle multiple tasks simultaneously without slowing down.

The router is equipped with Small Form-Factor Pluggable (SFP) slots, which are commonly used for connecting to fiber-optic networks. SFPs provide flexibility and high-speed data transmission, making them ideal for demanding network environments.

Packet Voice DSP Modules (PVDM) are essential for voice and video communications. With three PVDM modules, the Cisco CISCO2921/K9 2921 router can handle various voice and video applications, ensuring clear and reliable communication.

Services modules are designed to extend the functionality of the router. The inclusion of two service modules in the CISCO2921/K9 enhances its capabilities, allowing for additional features and services to be integrated into the network.

Compact Flash (CF) cards are used for storage and data backup purposes. The two CF card slots in this router provide redundancy and allow for easy configuration and software updates.

In addition to the three ports mentioned earlier, this router features three 10/100/1000Base-T Network ports, commonly known as Gigabit Ethernet ports. These high-speed ports offer fast data transfer and are essential for connecting to the local network.

To have a deeper understanding of the Cisco CISCO2921/K9 2921 router, it's important to explore its hardware specifications in detail:

The router is powered by a high-performance processor that ensures efficient data routing and processing. A robust processor is essential for handling the demands of modern networking, from data traffic to security and advanced applications.

Flash memory is used for storing the router's operating system and configuration files. The CISCO2921/K9 comes with 256 MB of flash memory, providing ample storage capacity for the router's firmware and configurations.

In addition to the mentioned ports and slots, the Cisco CISCO2921/K9 2921 router features various interfaces for connection to other devices and network components. These interfaces include USB, serial, auxiliary, and console ports.

Virtual Private Networks (VPNs) are crucial for secure remote access and data encryption. The CISCO2921/K9 router supports VPNs, allowing organizations to establish secure connections for remote users and branch offices.

Security is a top priority for any networking device. The router includes a wide range of security features, such as firewall capabilities, intrusion prevention, and encryption protocols, to protect the network from threats and unauthorized access.

The router's Quality of Service (QoS) capabilities ensure that critical applications and services receive priority in terms of bandwidth and network resources. This is essential for maintaining a high-quality user experience in data, voice, and video applications.

The router comes with a built-in power supply, ensuring that it can operate without the need for external power sources. This feature adds to the router's reliability and reduces the risk of network downtime.

The Cisco CISCO2921/K9 2921 router is designed to be rack-mounted, which is common in data center and networking environments. Rack mounting allows for efficient use of space and better organization of networking equipment.

Understanding the various use cases for the Cisco CISCO2921/K9 2921 Integrated Services Router is essential for assessing whether it is the right fit for your organization. Here are some common scenarios where this router shines:

For small and medium-sized businesses (SMBs), the Cisco CISCO2921/K9 2921 router is an excellent choice. Its modularity and scalability allow SMBs to start with a basic setup and expand as their networking requirements grow. It provides a cost-effective solution that can handle the evolving needs of the business.

Many organizations have branch offices that require reliable and secure connectivity to the main data center. The CISCO2921/K9 router is ideal for this scenario, offering robust features for branch-to-main-site connectivity and remote access.

In data center environments, network reliability and performance are critical. The Cisco CISCO2921/K9 2921 router can be used for connecting various data center components, including servers, storage devices, and switches. Its high-speed ports and support for Gigabit Ethernet make it suitable for data center applications.

Now that we've covered the router's features and hardware specifications, let's discuss the benefits it offers to organizations:

Versatility

The router's versatility is one of its primary advantages. It can adapt to a wide range of networking scenarios and can be customized to meet specific requirements, making it a valuable asset for organizations with diverse networking needs.

Modularity

The modularity of the Cisco CISCO2921/K9 2921 router allows for easy expansion and upgrade. Organizations can add HWICs, service modules, and other components as their network evolves, thus reducing the need for full-scale replacements.

High Performance

The router's robust hardware, including its processor, RAM, and flash memory, ensures high performance even in demanding network environments. It can handle a multitude of tasks simultaneously, guaranteeing a smooth user experience.

Secure Networking

Security is paramount in today's digital landscape. The router's comprehensive security features, including firewall capabilities and VPN support, provide organizations with the tools needed to protect their networks and sensitive data.

Quality of Service

The Quality of Service (QoS) features in the CISCO2921/K9 router enhance the performance of critical applications. This ensures that voice, video, and other latency-sensitive services run smoothly and without interruptions.

Reliability

The inclusion of features like a built-in power supply and rack-mount compatibility increases the router's reliability. This means less downtime and higher availability for the network.

• Manufacturer: Cisco
• Model Number or SKU# CISCO2921/K9
• Product Type: Router

• Storage Capacity Ports: 3
• Number of Total Expansion Slots: 12
• Expansion Slot Type: HWIC
• Expansion Slot Type: SFP (mini-GBIC)
• Expansion Slot Type: PVDM

• Network Technology: 10/100/1000Base-T
• Ethernet Technology: Gigabit Ethernet

Memory

• Standard Memory: 512 MB
• Flash Memory: 256 MB

In summary, the Cisco CISCO2921/K9 2921 Integrated Services Router is a powerful networking device that offers a wide range of features and capabilities. Its versatility, modularity, high performance, and comprehensive security features make it an ideal choice for various networking scenarios, from small businesses to data center environments.

When setting up and configuring this router, following the proper steps and taking security precautions is essential to ensure smooth operation and network reliability. Additionally, being prepared for common issues and knowing how to troubleshoot them will help maintain a stable and efficient network.