Description
Management of Network Bandwidth
Managing network bandwidth on the CISCO1921-MS/K9 Cisco 1921 Integrated Services Router can be done through a variety of methods, including:
- Quality of Service (QoS): QoS allows you to prioritize certain types of traffic, such as voice or video, over other types of traffic. This helps ensure that critical applications receive the necessary bandwidth while still allowing other applications to function.
- Traffic shaping: Traffic shaping allows you to limit the amount of bandwidth that can be used by specific types of traffic or specific devices on the network. This helps prevent one device or type of traffic from consuming too much bandwidth and disrupting other devices.
- Access Control Lists (ACLs): ACLs allow you to control access to the network by specifying which devices or types of traffic are allowed or denied. This can be used to restrict bandwidth usage by certain devices or types of traffic.
- Bandwidth allocation: The router can be configured to allocate specific bandwidth to the different types of traffic. This can be done on the basis of the protocols, applications, or devices.
- Monitoring: The router can be configured to monitor the network bandwidth usage and send notifications when certain thresholds are exceeded. This allows you to quickly identify and address any issues that may be affecting network performance.
- Class-Based Weighted Fair Queuing (CBWFQ): CBWFQ is a QoS feature that allows you to assign different priority levels to different types of traffic, based on their class. This ensures that critical traffic receives priority over less critical traffic.
All these methods can be implemented through the CLI or web-based interface of the router and can be used in combination for more granular control over the network bandwidth. It’s recommended to consult the router’s documentation for specific details on how to configure these methods for managing network bandwidth on the CISCO1921-MS/K9 Cisco 1921 Integrated Services Router.
Advanced Routing Protocols
The Cisco 1921 Integrated Services Router (ISR) supports several advanced routing protocols, which are used to dynamically exchange routing information between routers in a network. These protocols include:
- Border Gateway Protocol (BGP): BGP is a routing protocol used to exchange routing information between routers in different autonomous systems (AS) on the Internet. BGP is considered a path vector protocol and is used to establish the most efficient path for data to travel between networks.
- Open Shortest Path First (OSPF): OSPF is a routing protocol used for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm, which means that each router in the network maintains a complete map of the network’s topology. OSPF uses a shortest path first (SPF) algorithm to determine the best path for data to travel between networks.
- Enhanced Interior Gateway Routing Protocol (EIGRP): EIGRP is a Cisco proprietary routing protocol that is based on Interior Gateway Routing Protocol (IGRP). EIGRP uses a hybrid routing algorithm that combines the characteristics of both distance-vector and link-state routing protocols. It quickly converges on the network topology and provides faster recovery in case of failures.
- Routing Information Protocol (RIP) version 1 and 2 : RIP is a distance-vector routing protocol that uses hop count as a metric to determine the best path for data to travel. RIP version 2 (RIPv2) has several enhancements over version 1, including support for variable-length subnet masks (VLSMs), which allows for more efficient use of IP address space.
- Static routing: Static routing is a simple and easy-to-configure routing protocol that is used to manually configure routes on a router. It is typically used in small networks where the topology of the network does not change frequently.
These routing protocols, in addition to Quality of Service (QoS) features, access control lists (ACLs) and Network Address Translation (NAT) for secure and efficient network traffic management, makes CISCO1921-MS/K9 Cisco 1921 Integrated Services 2 Ports, 2 Slots Router a reliable solution for various types of enterprise networks.
Security Features
The CISCO1921-MS/K9 Cisco 1921 Integrated Services Router (ISR) offers a variety of security features to protect networks from external threats. Some of the security features include:
- Firewall: Cisco 1921 ISR comes with an integrated firewall that provides stateful packet inspection and access control lists (ACLs) to protect networks from unauthorized access and malicious traffic.
- Virtual Private Network (VPN): Cisco 1921 ISR supports the creation of VPN tunnels using protocols such as IPsec, SSL and L2TP to provide secure remote access to the network.
- Network Address Translation (NAT): NAT allows the use of one IP address space to be shared among multiple hosts, providing an additional layer of security by hiding internal IP addresses from external networks.
- Intrusion Prevention System (IPS): The Cisco 1921 ISR can be integrated with an IPS to provide real-time threat detection and protection against a wide range of network attacks.
- Authentication, Authorization, and Accounting (AAA): Cisco 1921 ISR supports the use of AAA servers to authenticate users, authorize access to network resources, and track user activity for compliance and security purposes.
- Secure Shell (SSH) and Secure Copy Protocol (SCP): Cisco 1921 ISR supports SSH and SCP, which provide secure encrypted communication and file transfer capabilities.
- Secure Sockets Layer (SSL) and Transport Layer Security (TLS): Cisco 1921 ISR supports SSL and TLS, which provide secure encrypted communication between web browsers and web servers.
- Cisco Identity Services Engine (ISE): The Cisco 1921 ISR can be integrated with Cisco ISE to provide identity-based security and network access control.
General Information
- Manufacturer Cisco
- Manufacturer Part Number CISCO1921-MS/K9
- Product Series 1900
- Product Model 1921
- Product Name 1921 Integrated Services Router
- Product Type Router
Interfaces / Ports
- Total Number of Ports 2
- USB Yes
- Management Port Yes
- Number of Broadband (RJ-45) Ports 2
I/O Expansions
- Number of Total Expansion Slots 2
- Expansion Slot Type HWIC
Network & Communication
- Network Technology 10/100/1000Base-T
- Ethernet Technology Gigabit Ethernet
- VoIP Supported No
Management & Protocols
- Security Features –
- Cisco Security Manager
- VPN encryption
- Cisco IOS Firewall
- Cisco IOS Zone-Based Firewall
- Cisco IOS IPS
- Cisco IOS Content Filtering
- AAA
- DES
- 3DES
- AES
Memory
- Standard Memory 512 MB
- Maximum Memory 512 MB
- Memory Technology DDR2 SDRAM
- Flash Memory 256 MB
Power Description
- PoE (RJ-45) Port No
- Input Voltage 110 V AC
- Input Voltage 220 V AC
- Power Source Power Supply
- Redundant Power Supply No
