Glossary

C

CCK

cell

Complementary code keying. A modulation technique used by IEEE 802.11b-compliant wireless LANs for transmission at 5.5 and 11 Mbps.

The area of radio range or coverage in which the wireless devices can communicate with the base station. The size of the cell depends upon the speed of the transmission, the type of antenna used, and the physical environment, as well as other factors.

client

CSMA

A radio device that uses the services of an Access Point to communicate wirelessly with other devices on a local area network.

Carrier sense multiple access. A wireless LAN media access method specified by the IEEE 802.11 specification.

D

data rates

The range of data transmission rates supported by a device. Data rates are

 

measured in megabits per second (Mbps).

dBi

A ratio of decibels to an isotropic antenna that is commonly used to measure

 

antenna gain. The greater the dBi value, the higher the gain, and the more acute

 

the angle of coverage.

DHCP

Dynamic host configuration protocol. A protocol available with many operating

 

systems that automatically issues IP addresses within a specified range to

 

devices on the network. The device retains the assigned address for a specific

 

administrator-defined period.

dipole

A type of low-gain (2.2-dBi) antenna consisting of two (often internal) elements.

domain name

The text name that refers to a grouping of networks or network resources based

 

on organization-type or geography; for example: name.com—commercial;

 

name.edu—educational; name.gov—government; ISPname.net—network

 

provider (such as an ISP); name.ar—Argentina; name.au—Australia; and so on.

DNS

Domain Name System server. A server that translates text names into IP

 

addresses. The server maintains a database of host alphanumeric names and their

 

corresponding IP addresses.

DSSS

Direct sequence spread spectrum. A type of spread spectrum radio transmission

 

that spreads its signal continuously over a wide frequency band.

Cisco Aironet 1100 Series Access Point Hardware Installation Guide

 

GL-2

OL-4309-07

 

 

 

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Cisco Systems CSACS1121K9 manual GL-2

CSACS1121K9 specifications

Cisco Systems CSACS1121K9 is a part of Cisco's comprehensive suite of security solutions tailored for identity and access management. This device, recognized for its reliability and functionality, plays a crucial role in ensuring that organizations can efficiently manage user access across their networks.

One of the main features of the CSACS1121K9 is its centralized user authentication capabilities. This device simplifies the process of validating user identities, allowing administrators to manage credentials for a variety of access methods, including web-based authentication, RADIUS, and TACACS+. This flexibility plays a significant role in diverse environments where different protocols may be required for various devices or applications.

The CSACS1121K9 is built on the robust Cisco Secure Access Control Server (ACS) platform. This platform supports a wide range of security policies, making it versatile enough for different organizational needs. With its capability to integrate seamlessly with other Cisco solutions and third-party platforms, the device enhances the overall security posture of an organization.

In terms of scalability, the CSACS1121K9 can support a substantial number of users and devices. This scalability ensures that as organizations grow, their access management system can scale proportionately without performance degradation. The ability to handle thousands of simultaneous authentication requests makes it suitable for both small companies and large enterprises.

Another significant characteristic of the CSACS1121K9 is its support for advanced visibility and reporting. Administrators can track authentication attempts, policy enforcement, and other critical events in real time. This level of monitoring is essential for compliance audits and helps organizations quickly react to potential security threats.

Moreover, the CSACS1121K9 includes capabilities for implementing role-based access control (RBAC). This feature allows organizations to define specific access rights based on user roles, which enhances security while facilitating efficient operations.

In conclusion, the Cisco Systems CSACS1121K9 is a powerful tool for organizations seeking to enhance their identity and access management frameworks. With its centralized user authentication, scalability, advanced reporting capabilities, and support for RBAC, it provides a robust solution that can adapt to the evolving security demands of modern networks. Whether deployed in a small business environment or within large enterprises, the CSACS1121K9 stands out for its comprehensive feature set and ability to integrate into existing security infrastructures.