Cisco 2851 DC Router w/ DC PWR, 2GE, 4HWIC, 3PVDM, 1NME-XD, 2AIM, IP BASE - CISCO2851-DC

Cisco 2851 Router with DC Power Overview

Manufacturer Information

The Cisco 2851 Router with DC Power is produced by Cisco Systems, Inc., a leading name in network technology.

Product Details

• Brand: Cisco
• Series: 2800 Series
• Model: 2851
• Part Number: CISCO2851-DC

Interfaces and Ports

• Total Ports: 2
• USB Port: Yes
• Management Port: Yes
• Network (RJ-45) Ports: 2

I/O Expansion Options

• Total Expansion Slots: 11
• Expansion Slot Types:
• NME (Network Module Expansion)
• EVM (Enhanced Voice Module)
• PVDM (Packet Voice Digital Modem)
• AIM (Advanced Integration Module)

Network and Communication Features

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

Memory Specifications

• Standard Memory: 256 MB
• Maximum Memory Capacity: 1 GB
• Memory Type: DRAM (Dynamic Random Access Memory)
• Flash Memory: 64 MB

Power

The Cisco 2851 Router is equipped with a powerful DC power supply, making it an ideal choice for users who require a reliable and efficient power source. With its DC power capability, this router ensures uninterrupted connectivity and enhanced performance.

Reliability

One of the key benefits of the DC power feature in the Cisco 2851 Router is its reliability. DC power supplies are known for their stability and consistency, providing a steady flow of power to the router. This eliminates the risk of sudden power fluctuations or surges that could potentially damage the device or disrupt network operations.

Additionally, DC power supplies are less susceptible to interference from external factors such as electromagnetic radiation or radio frequency signals. This ensures a more reliable and consistent power supply, minimizing downtime and maximizing network availability.

Efficiency

The DC power capability of the Cisco 2851 Router also offers increased energy efficiency. Compared to AC power supplies, DC power supplies are more efficient in converting electrical energy into usable power for the router. This results in lower energy consumption and reduced operating costs for users.

Furthermore, DC power supplies typically generate less heat compared to AC power supplies. This not only contributes to energy efficiency but also helps in maintaining optimal operating temperatures for the router. By reducing heat generation, the DC power feature enhances the overall longevity and reliability of the device.

Flexibility

The Cisco 2851 Router's DC power feature also provides users with greater flexibility in terms of deployment options. With support for DC power input, this router can be easily integrated into various network environments, including those where AC power sources may not be readily available or practical.

This flexibility allows users to deploy the router in a wide range of scenarios, such as remote locations, outdoor setups, or mobile deployments. Whether it's a construction site, a temporary event, or a remote office, the Cisco 2851 Router's DC power capability ensures seamless connectivity and reliable performance.

Power Redundancy

In addition to the benefits mentioned above, the Cisco 2851 Router's DC power feature also supports power redundancy. By connecting multiple DC power sources to the router, users can ensure continuous operation even in the event of a power failure or outage.

This redundancy feature is particularly crucial for businesses and organizations that cannot afford any downtime or loss of connectivity. With power redundancy, the router can automatically switch to an alternate power source, ensuring uninterrupted network operations and minimizing disruptions.

Scalability

The DC power feature of the Cisco 2851 Router also enables scalability. As businesses grow and their network requirements expand, additional routers can be easily added to the existing setup without the need for complex power infrastructure upgrades.

With DC power supplies, users can connect multiple routers to a single power source, reducing the overall complexity and cost of deploying and managing the network infrastructure. This scalability feature allows businesses to adapt to changing needs and seamlessly expand their network capabilities.

Interfaces

The Cisco 2851 Router boasts a comprehensive set of interfaces, making it a versatile solution for various networking applications. With its 2 WAN interfaces, 4 LAN interfaces, 3 high-speed serial interfaces, 1 USB interface, and 2 integrated network module slots, this router offers extensive connectivity options to meet diverse user requirements.

WAN Connectivity

The 2 WAN interfaces of the Cisco 2851 Router provide users with flexible options for connecting to external networks or internet service providers (ISPs). These interfaces support various protocols such as Ethernet, T1/E1, and DSL, allowing users to choose the most suitable WAN connectivity method for their specific needs.

Whether it's connecting to a high-speed fiber network, utilizing traditional T1 or E1 lines, or leveraging DSL connections, the Cisco 2851 Router's WAN interfaces offer seamless integration and reliable connectivity. This flexibility ensures that users can establish and maintain stable connections with external networks, enabling efficient data transfer and communication.

LAN Connectivity

The 4 LAN interfaces of the Cisco 2851 Router enable users to connect multiple devices within their local network. These interfaces support various Ethernet standards, including Fast Ethernet and Gigabit Ethernet, providing high-speed data transfer capabilities.

With multiple LAN interfaces, users can easily connect computers, servers, printers, and other network devices to create a robust and efficient local area network (LAN). This facilitates seamless communication and data sharing within the organization, improving productivity and collaboration.

Advanced Networking Capabilities

In addition to basic LAN connectivity, the Cisco 2851 Router's LAN interfaces also offer advanced networking capabilities. These interfaces support features such as VLAN (Virtual Local Area Network) tagging and routing protocols like OSPF (Open Shortest Path First) and EIGRP (Enhanced Interior Gateway Routing Protocol).

VLAN tagging allows users to segment their network into multiple virtual LANs, providing enhanced security and improved network management. Routing protocols enable efficient data routing and load balancing across the network, optimizing performance and ensuring reliable connectivity.

Serial Connectivity

The Cisco 2851 Router is equipped with 3 high-speed serial interfaces, enabling connectivity with serial-based devices or networks. These interfaces support various serial protocols such as HDLC (High-Level Data Link Control), PPP (Point-to-Point Protocol), and Frame Relay.

Serial connectivity is particularly useful in scenarios where legacy equipment or specialized devices rely on serial communication. With the Cisco 2851 Router's serial interfaces, users can seamlessly integrate these devices into their network infrastructure, ensuring compatibility and efficient data transfer.

License

The Cisco 2851 Router comes with the IP BASE license, providing users with a comprehensive set of networking features and capabilities. This license is essential for unlocking the full potential of the router and leveraging advanced functionalities.

Feature Set

The IP BASE license of the Cisco 2851 Router includes a wide range of features and protocols that are crucial for building a robust and secure network infrastructure. These features include advanced routing protocols, security capabilities, and Quality of Service (QoS) mechanisms.

With the IP BASE license, users can take advantage of routing protocols such as OSPF, EIGRP, BGP (Border Gateway Protocol), and RIP (Routing Information Protocol). These protocols enable efficient data routing, load balancing, and dynamic network discovery, ensuring optimal performance and scalability.

Security

The IP BASE license also includes essential security features to protect the network against threats and unauthorized access. These features include access control lists (ACLs), stateful firewall capabilities, Virtual Private Network (VPN) support, and Network Address Translation (NAT).

ACLs allow users to define granular access control policies, restricting network traffic based on specific criteria such as source IP addresses or protocols. The stateful firewall capability provides additional protection by inspecting packet content and filtering potentially malicious traffic.

VPN support allows users to establish secure connections over public networks, ensuring data confidentiality and integrity. NAT enables the translation of private IP addresses to public IP addresses, enabling seamless communication between internal and external networks.

Quality of Service

The IP BASE license of the Cisco 2851 Router also includes Quality of Service (QoS) mechanisms, enabling users to prioritize and manage network traffic based on their specific requirements. QoS ensures that critical applications and services receive the necessary bandwidth and latency guarantees, optimizing their performance.

With QoS, users can prioritize real-time applications such as voice or video conferencing, ensuring minimal latency and high-quality communication. This feature is particularly important in environments where network resources are shared among multiple applications or users.

Scalability and Upgradability

The IP BASE license provides users with a solid foundation for their networking needs. However, as businesses grow and their requirements evolve, the Cisco 2851 Router allows users to upgrade their license to unlock additional features and capabilities.

This scalability and upgradability ensure that the router can adapt to changing needs and future-proof the network infrastructure. Users can easily upgrade their license to higher-tier options, such as IP SERVICES or ADVANCED ENTERPRISE SERVICES, to access advanced features like multicast routing, MPLS (Multiprotocol Label Switching), or IPv6 support.

Overall, the Cisco 2851 Router's IP BASE license is a valuable asset for users, providing them with a comprehensive set of features and capabilities to build a secure, scalable, and efficient network infrastructure.