Introduction to the Cisco Router
The Cisco 2901-AX/K9 is a modular router that is part of the Cisco 2900 series. It provides a wide range of features and capabilities to support the needs of small to medium-sized businesses and enterprise branch offices.
Some of the key features of the Cisco 2901-AX/K9 include:
- 2 Gigabit Ethernet interfaces
- 4 Enhanced High-Speed WAN Interface Card (EHWIC) slots
- 256MB CompactFlash memory
- 2GB DRAM memory
- IP Base feature set
- Security features such as IPsec, firewall, and VPN
The router supports various networking protocols such as IPv4 and IPv6, and it has a built-in switch functionality, enabling the router to act as a switch, allowing the connection of multiple devices to the network.
The Cisco 2901-AX/K9 also supports Cisco IOS Software and Cisco SDM, a web-based interface that can be used to configure and monitor Cisco network devices. This allows for easy configuration, monitoring and troubleshooting of the router.
The router also supports advanced security features such as firewall, VPN and intrusion detection and prevention. This provides an additional layer of security to the network and protects against various types of cyber attacks.
Remote Management Protocols
The Cisco 2901 router with the specified configuration includes several remote management protocols that can be used to access and configure the device remotely. These protocols include:
- SSH (Secure Shell): SSH is a secure remote access protocol that allows you to connect to the router's command-line interface (CLI) and execute commands. SSH uses encryption to secure the connection and prevent eavesdropping, tampering, or message forgery. SSH is typically used for remote management and troubleshooting of the router.
- SNMP (Simple Network Management Protocol): SNMP is a standard protocol for monitoring and managing network devices, including routers. It allows you to collect various information about the router's performance, configuration, and status, and to receive alerts when certain thresholds are exceeded. SNMP is typically used for network monitoring and performance management.
- Telnet: Telnet is a remote access protocol that allows you to connect to the router's CLI and execute commands. Telnet is not secure because it transmits data in clear text, making it susceptible to eavesdropping, tampering, or message forgery. Telnet is typically used for testing and troubleshooting, but not for production use.
- HTTP/HTTPS: HTTP (Hypertext Transfer Protocol) and HTTPS (HTTP Secure) are protocols for accessing the router's web-based management interface. HTTP is typically used for basic management tasks, while HTTPS is used for secure management tasks that require authentication and encryption.
The router also supports IPsec AX encryption for secure communication. IPsec is a set of protocols that provide confidentiality, integrity, and authenticity for IP packets. IPsec can be used to secure remote management sessions, as well as other types of IP traffic, such as VPN (Virtual Private Network) connections.
Quality of Service (QoS) Capabilities
The Cisco 2901 router with the specified configuration includes several Quality of Service (QoS) capabilities that can be used to manage and prioritize network traffic. These capabilities include:
- Class-Based Weighted Fair Queuing (CBWFQ): CBWFQ allows you to assign different priorities to different types of traffic based on their IP Precedence or DSCP (Differentiated Services Code Point) values. CBWFQ ensures that higher-priority traffic is serviced before lower-priority traffic, reducing the chances of congestion and packet loss.
- Low Latency Queuing (LLQ): LLQ is a variation of CBWFQ that allows you to assign a strict priority to a specific type of traffic, such as voice or video. LLQ ensures that the strict-priority traffic is serviced with minimal delay and jitter, providing a more predictable and reliable service.
- Priority Queueing (PQ): PQ allows you to assign a priority level to each packet, ensuring that higher-priority packets are serviced before lower-priority packets. PQ is typically used for critical applications that require low-latency and jitter-free service, such as voice and video.
- Weighted Random Early Detection (WRED): WRED is a congestion-avoidance mechanism that uses random early detection (RED) to drop packets before the queue becomes full. WRED uses different thresholds and drop probabilities for different IP Precedence or DSCP values, allowing you to provide different levels of service to different types of traffic.
- Cisco Modular Quality of Service Command-Line Interface (MQC) : MQC is a powerful, flexible and easy-to-use interface for configuring QoS on Cisco routers. MQC allows you to define a wide range of QoS policies, including CBWFQ, LLQ, PQ, and WRED, and apply them to different types of traffic based on a wide range of match criteria, such as IP address, port, and protocol.
The router with this configuration allows you to apply all the above QoS capabilities for ensuring the quality of service for various types of traffic.
- Manufacturer Cisco
- Manufacturer Part Number C2901-AX/K9
- Product Series 2900
- Product Model 2901
- Product Name 2901 Router
- Product Type Router
- Total Number of Ports 2
- USB Yes
- Powerline No
- Management Port Yes
- Token Ring Port No
- Serial V.35 Interface No
- Number of Network (RJ-45) Ports 2
- Number of Total Expansion Slots 7
- Expansion Slot Type HWIC
- Expansion Slot Type PVDM
Network & Communication
- Network Technology 10/100/1000Base-T
- Ethernet Technology Gigabit Ethernet
- VoIP Supported Yes
Management & Protocols
- Security Features
- Content Filtering
- Flexible Packet Matching
- Standard Memory 2.50 GB
- Memory Technology DRAM
- Flash Memory 256 MB
- Memory Card Supported CompactFlash
- PoE (RJ-45) Port Yes
- Input Voltage 110 V AC
- Input Voltage 220 V AC
- Power Source Power Supply
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