The Cisco 2821 is a router that is part of Cisco's 2800 series of Integrated Services Routers. These routers are designed for small-to-medium sized businesses, as well as enterprise branch offices. The Cisco 2821 is a modular router that can be configured with various WAN interfaces, including T1/E1, ISDN, and DSL, as well as a variety of LAN interfaces, such as Ethernet and Fast Ethernet. It also has a built-in VPN (Virtual Private Network) support, firewall and support for QoS (Quality of Service) to prioritize specific types of network traffic. It also supports a wide range of advanced features, such as IP telephony, wireless connectivity, and network security. This router support both the traditional IOS and the newer IOS-XE which increases its reliability and scalability. It can provide a voice,video, data, and security services all in one box, and it is a good fit for enterprise branch or small offices.
Performance and Reliability
The Cisco 2821 is designed to provide high performance and reliability for small-to-medium sized businesses and enterprise branch offices.
In terms of performance, the router is equipped with a powerful CPU and has a large amount of memory, which allows it to handle a high amount of routing and switching traffic. It also supports advanced Quality of Service (QoS) features that allow you to prioritize critical network traffic and prevent network congestion.
In terms of reliability, the Cisco 2821 includes several features to help ensure that your network remains up and running. For example, it supports redundancy through Hot Standby Router Protocol (HSRP), which allows for automatic failover in the event of a primary router failure. Additionally, it supports several VPN technologies, such as IPSec and Secure Sockets Layer (SSL), to help secure your network from unauthorized access and keep your data safe.
The Cisco 2821 also has a wide range of physical interfaces that provide multiple options for WAN and LAN connections, and the router is built with a modular design that allows for easy expansion and upgrades. All of these features ensure that the 2821 can handle the demands of a busy network and provide high level of performance and reliability.
Interface Provided for Digital Workplace
The Cisco 2821 Integrated Services Router provides a variety of interfaces to support different types of network connections and services, making it suitable for use in a digital workplace.
One of the most notable interfaces provided on the Cisco 2821 is the Gigabit Ethernet interface. This interface can be used to connect the router to other network devices, such as switches and servers, at speeds of up to 1000Mbps. This allows for fast and efficient data transfer between devices on the network.
Another important interface provided on the Cisco 2821 is the serial interface. This interface can be used to connect the router to other network devices or service providers using serial cables. This interface can be used for a variety of purposes, such as connecting to a WAN or a leased line for Internet access.
The router also provides an ISDN interface, which is a digital phone line that can be used for WAN connectivity and remote access. This interface can be used as a backup for primary WAN link or as a primary link in some cases.
The Cisco 2821 also has USB ports that can be used to connect USB storage devices, such as flash drives, for storing backups of the router's configuration and other important data.
All those interfaces are manageable and configurable via the Cisco IOS software which allows for advanced features and customization with the software, as well as providing CLI and web GUI interfaces for easy configuration and management.
General Information about this Cisco CISCO2821
- Manufacturer: Cisco
- Part Number or SKU# CISCO2821
- Product Series: 2800
- Product Model: 2821
- Product Type: Integrated Services Router
Interfaces/Ports for Integrated Services Router
- Total Number of Ports: 2
- Management Port: Yes
- Number of Network (RJ-45) Ports: 2
I/O Expansions of 2 Ports Router
- Number of Total Expansion Slots: 12
- Expansion Slot Type: AIM
- Expansion Slot Type: HWIC
- Expansion Slot Type: NME-X
- Expansion Slot Type: PVDM
- Expansion Slot Type: EVM
Network & Communication
- Ethernet Technology: Gigabit Ethernet
- Network Technology: 10/100/1000Base-T
- Standard Memory: 256 MB
- Maximum Memory Supported: 1GB
- Memory Technology: DRAM
- Flash Memory: 64 MB
- Memory Card Supported: Compact Flash
- Input Voltage: 110 V AC, 220 V AC
- Redundant Power Supply Supported: Yes
Dimensions & Weight
- Compatible Rack Unit: 2U
- Form Factor: Rack-mountable
- Height: 3.5 Inch
- Width: 17.3 Inch
- Depth: 16.4 Inch
- Weight (Approximate): 25 Lbs
- Package Contents-
- 2821 Integrated Services Router
- Cisco 2800 IP BASE W/O CRYPTO (S28NIPB-12403)
- Power Cord 110V (CAB-AC)
- Cisco 2821/51 AC power supply (PWR-2821-51-AC)
- 256MB DDR DRAM Memory (MEM2800-256D-INC)
- 64MB CF Card(MEM2800-64CF-INC)
- Device manager for routers (ROUTER-SDM)
- Rack-mount brackets with screws for 19-inch racks
- Ground lug and two mounting screws
- Cable management bracket
- RJ-45-to-DB-9 console cable
- RJ-45-to-DB-25 modem cable
- Cisco 2800 Series Integrated Services Routers Quick Start Guide
- Cisco 2800 Series Integrated Services Routers Regulatory Compliance and Safety Information document
- Cisco Router and Security Device Manager (SDM) Quick Start Guide
- Product Registration card and Cisco.com card
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