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Cisco Systems CISCO881SECK9 manual Wireless Device Overview, Software Modes

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C H A P T E R 2

Wireless Device Overview

Wireless devices (commonly configured as access points) provide a secure, affordable, and easy-to-use wireless LAN solution that combines mobility and flexibility with the enterprise-class features required by networking professionals. When configured as a access point, the wireless device serves as the connection point between wireless and wired networks or as the center point of a stand-alone wireless network. In large installations, wireless users within radio range can roam throughout a facility while maintaining seamless, uninterrupted access to the network.

With a management system based on Cisco IOS software, wireless devices are Wi-Fi CERTIFIED™, 802.11b-compliant, 802.11g-compliant, and 802.11n-compliant wireless LAN transceivers.

Software Modes

The access point is shipped with an autonomous image and a recovery image on the access point’s flash. The default mode is autonomous; however, the access point can be upgraded to operate in Cisco Unified Wireless mode.

Each mode is described below:

–Autonomous mode—supports standalone network configurations, where all configuration settings are maintained locally on the wireless device. Each autonomous device can load its starting configuration independently, and still operate in a cohesive fashion on the network.

–Cisco Unified Wireless mode—operates in conjunction with a Cisco Unified Wireless LAN controller, where all configuration information is maintained within the controller. In the Cisco Unified Wireless LAN architecture, wireless devices operate in the lightweight mode using Leightweight Access Point Protocol (LWAPP), (as opposed to autonomous mode). The lightweight access point, or wireless device, has no configuration until it associates to a controller. The configuration on the wireless device can be modified by the controller only when the networking is up and running. The controller manages the wireless device configuration, firmware, and control transactions such as 802.1x authentication. All wireless traffic is tunneled through the controller.

See Why Migrate to a Cisco Unified Wireless Network? on Cisco.com for more about this network architecture design.

Cisco 880 Series Integrated Services Router Software Configuration Guide

 

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Cisco Systems CISCO881SECK9 manual Wireless Device Overview, Software Modes
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CISCO881SECK9 specifications

The Cisco Systems CISCO881SECK9 is a robust and flexible router designed to cater to the needs of small to medium-sized businesses and branch offices. It is part of the Cisco 8800 series, known for its powerful performance, security features, and advanced functionalities, making it suitable for various networking applications.

One of the standout features of the CISCO881SECK9 is its integrated security capabilities. With a built-in Cisco IOS Firewall and comprehensive security features such as intrusion prevention systems (IPS), secure virtual private network (VPN) services, and support for advanced encryption protocols, businesses can confidently protect their data and communications. This level of security is crucial in today’s cyber threat landscape, where data breaches and cyberattacks can have severe implications.

Another key characteristic of the CISCO881SECK9 is its support for multiple WAN connectivity options, including Ethernet, DSL, and 3G/4G cellular connections. This versatility allows organizations to choose their preferred internet connection method, providing reliable and continuous connectivity. The device also supports load balancing across multiple WAN links, which helps optimize bandwidth utilization and enhance the overall network performance.

The router also features a range of integrated services, including voice, video, and data services, which are essential for modern business operations. With support for Voice over IP (VoIP) and video conferencing, the CISCO881SECK9 ensures that organizations can maintain effective communication and collaboration among employees, partners, and clients. This dual functionality enhances productivity while simplifying network management.

In terms of performance, the CISCO881SECK9 is equipped with advanced Quality of Service (QoS) features that prioritize critical applications and ensure optimal performance even during peak traffic periods. This capability is particularly important for businesses that rely on real-time applications such as video conferencing and VoIP, ensuring high-quality service delivery.

Moreover, the router's scalability allows organizations to grow without needing to overhaul their entire network infrastructure. It supports various expansion modules, providing flexibility to add additional features and capabilities as business needs evolve.

With its combination of security, performance, and integrated services, the Cisco Systems CISCO881SECK9 stands out as a reliable choice for enterprises looking to enhance their networking capabilities while ensuring a secure and scalable infrastructure. Its thoughtful design, robust features, and adaptability make it suitable for a wide range of business applications, enabling companies to thrive in a fast-paced digital landscape.