Wireless technology in computer networks at Cisco

Cisco is a prominent technology company that offers a wide range of networking and communication solutions, including wireless technology. Cisco wireless technology encompasses various products and services designed to provide reliable and secure wireless connectivity for businesses and organizations. Here are some key aspects of Cisco's wireless technology:

1. Cisco Wireless Access Points (APs):
Cisco offers a diverse portfolio of wireless access points that provide Wi-Fi connectivity for different environments, ranging from small offices to large enterprise networks. These APs support various wireless standards, such as Wi-Fi 6 (802.11ax) and Wi-Fi 5 (802.11ac), and provide features like high-density deployments, integrated security, and advanced radio frequency (RF) management capabilities.

2. Cisco Wireless LAN Controllers (WLCs):
Wireless LAN controllers are an integral part of Cisco's wireless infrastructure. WLCs centralize the management and control of access points, enabling network administrators to configure, monitor, and secure the wireless network. They provide features like centralized authentication, policy enforcement, RF optimization, and seamless roaming across access points.

3. Cisco Mobility Express:
Cisco Mobility Express is a simplified deployment option for small to medium-sized businesses. It allows businesses to set up a wireless network using Cisco's integrated wireless LAN controller functionality within select access points. This solution simplifies deployment, reduces complexity, and provides essential wireless management capabilities without requiring a separate controller appliance.

4. Cisco DNA Center:
Cisco DNA Center is a centralized network management platform that provides end-to-end management and automation for Cisco's networking infrastructure, including wireless networks. It offers features like network provisioning, monitoring, troubleshooting, policy management, and advanced analytics for optimizing wireless performance and user experience.

5. Cisco Identity Services Engine (ISE):
Cisco ISE is a powerful network access policy management platform that integrates with Cisco's wireless infrastructure. It enables administrators to define and enforce policies based on user identity, device type, and other contextual information, ensuring secure and compliant access to the wireless network.

6. Cisco Meraki:
Cisco Meraki is a cloud-managed networking solution that includes wireless access points, switches, security appliances, and other network devices. Meraki provides a simplified and intuitive interface for managing and monitoring wireless networks, making it popular for small to mid-sized deployments or distributed environments.

7. Cisco Wireless Security:
Cisco's wireless technology incorporates robust security features to protect the wireless network from unauthorized access, data breaches, and other threats. These features include secure authentication protocols, encryption standards, intrusion prevention systems, and integration with other security solutions like Cisco Firepower Next-Generation Firewall.

These are just some of the key elements of Cisco's wireless technology portfolio. Cisco continually innovates and evolves its wireless offerings to meet the growing demands of wireless connectivity and the security requirements of modern networks.

Here are a few more aspects of Cisco's wireless technology:

8. Cisco Digital Network Architecture (DNA):
Cisco DNA is an architectural framework that encompasses various technologies, including wireless, to create a unified network infrastructure. It provides a programmable and software-defined approach to network management, allowing organizations to automate and streamline their operations, including wireless deployments and policies.

9. Cisco Hyperlocation:
Hyperlocation is a technology offered by Cisco that provides highly accurate indoor location services using Wi-Fi. It enables businesses to track and analyze the movements of people and assets within their facilities, allowing for improved resource allocation, customer engagement, and operational efficiency.

10. Cisco Mobility Services Engine (MSE):
MSE is a platform that provides location-based services in wireless networks. It uses a combination of Wi-Fi and other technologies like Bluetooth Low Energy (BLE) to offer services such as asset tracking, proximity marketing, and analytics based on user location.

11. Cisco CleanAir Technology:
CleanAir is a feature integrated into Cisco wireless access points that enables proactive identification and mitigation of wireless interference. It scans the RF environment and detects sources of interference, such as Bluetooth devices or microwave ovens, to ensure optimal wireless performance.

12. Cisco Wireless Controllers and Management:
Cisco offers various wireless controllers and management solutions to centralize the configuration, monitoring, and management of wireless networks. These controllers provide features like guest access management, Quality of Service (QoS) enforcement, RF optimization, and detailed reporting and analytics.

13. Cisco Wireless Services Modules (WiSM):
WiSM modules are specialized hardware modules that can be installed in Cisco Catalyst switches. They provide integrated wireless LAN controller functionality within the switch, allowing for centralized management and control of access points while leveraging the existing switch infrastructure.

14. Cisco Aironet Developer Platform (ADP):
ADP is an open platform that allows developers to build applications and services that integrate with Cisco Aironet access points. It enables the creation of custom applications that leverage wireless infrastructure for various purposes, such as location-based services, IoT integration, or data analytics.

These are some additional elements of Cisco's wireless technology ecosystem. Cisco's wireless solutions are widely adopted across various industries and organizations, ranging from small businesses to large enterprises, due to their reliability, scalability, and comprehensive feature sets.

Here are some commonly used mobile terminologies related to Cisco technologies:

1. Mobile Device Management (MDM):
MDM refers to the management of mobile devices, such as smartphones and tablets, within an organization. Cisco offers Cisco Meraki Systems Manager, a cloud-based MDM solution that helps manage and secure mobile devices, enforce policies, and facilitate device deployment and configuration.

2. Bring Your Own Device (BYOD):
BYOD is a policy that allows employees to use their personal mobile devices for work purposes. Cisco provides solutions like Cisco Identity Services Engine (ISE) to enforce security policies and control access for BYOD devices, ensuring secure connectivity and protecting corporate data.

3. Mobile Application Management (MAM):
MAM involves managing and securing mobile applications within an organization. Cisco's AppDynamics Mobile Real-User Monitoring (RUM) provides insights into mobile application performance, user experience, and crash reporting, helping organizations optimize their mobile app performance.

4. Mobile Device Security:
Mobile device security refers to measures taken to protect mobile devices and the data they store from unauthorized access and threats. Cisco provides solutions like Cisco Umbrella to protect mobile devices against malware, phishing, and other online threats by enforcing DNS security and providing secure web browsing.

5. Mobile Virtual Private Network (Mobile VPN):
Mobile VPN allows mobile devices to securely connect to a private network, such as a corporate network, over a public network like the internet. Cisco offers mobile VPN solutions through Cisco AnyConnect, providing secure remote access to corporate resources for mobile users.

6. Mobile Application Development:
Mobile application development refers to the process of creating software applications for mobile devices. Cisco provides tools and resources, such as Cisco DevNet, which offers APIs and software development kits (SDKs) to help developers build and integrate Cisco technologies into their mobile applications.

7. Mobile Collaboration:
Mobile collaboration involves using mobile devices and applications to facilitate communication and collaboration among individuals or teams. Cisco offers mobile collaboration solutions like Cisco Webex, which enables mobile users to participate in audio and video conferences, share content, and collaborate in real-time.

8. Mobile Data Offloading:
Mobile data offloading refers to the process of transferring mobile data traffic from cellular networks to alternative networks, such as Wi-Fi, to reduce network congestion and improve data speeds. Cisco provides solutions like Cisco Service Provider Wi-Fi to enable seamless and secure data offloading for mobile users.

These are some of the common terminologies related to mobile technologies in the context of Cisco. Cisco offers a comprehensive range of solutions and services to address the unique challenges and requirements of the mobile ecosystem.

Here are a few more mobile terminologies related to Cisco technologies:

9. Mobile Edge Computing (MEC):
MEC brings computing capabilities and services closer to the mobile network edge, reducing latency and enabling faster response times for mobile applications. Cisco's MEC solutions enable the deployment of edge computing resources and services at the edge of the mobile network, enhancing mobile application performance and enabling innovative use cases like augmented reality (AR) and virtual reality (VR).

10. Mobile Service Provider:
A mobile service provider refers to a telecommunications company that offers mobile network services to end-users. Cisco provides solutions and technologies to mobile service providers, including mobile core networks, radio access networks, and mobile backhaul solutions, to deliver reliable and high-performance mobile services.

11. Mobile Content Delivery Network (Mobile CDN):
A mobile CDN is a network infrastructure that optimizes the delivery of content to mobile devices, reducing latency and enhancing user experience. Cisco's mobile CDN solutions, such as Cisco Content Delivery System (CDS), help service providers deliver video, audio, and other content efficiently to mobile users.

12. Mobile IP (Internet Protocol):
Mobile IP is a protocol that allows mobile devices to maintain their IP address and connectivity while moving between different networks. Cisco supports Mobile IP through technologies like IP Mobility, which enables seamless mobility for mobile devices across wireless and wired networks.

13. Mobile Backhaul:
Mobile backhaul refers to the transport network that connects the cellular base stations to the core network. Cisco offers mobile backhaul solutions, including microwave and IP-based technologies, to ensure efficient and reliable connectivity between the access networks and the mobile core.

14. Mobile Network Optimization:
Mobile network optimization involves techniques and technologies to improve the performance and efficiency of mobile networks. Cisco provides optimization solutions, such as Cisco Self-Organizing Network (SON) technologies, to automate network configuration and optimization, ensuring optimal coverage, capacity, and quality of service in mobile networks.

15. Mobile Broadband:
Mobile broadband refers to high-speed internet access provided through mobile networks, enabling users to access the internet and online services using their mobile devices. Cisco offers solutions for mobile broadband networks, including technologies like Long Term Evolution (LTE) and 5G, to deliver fast and reliable mobile data services.

These are additional mobile terminologies related to Cisco technologies. Cisco's mobile solutions and services cater to the evolving needs of mobile networks, ensuring seamless connectivity, enhanced user experience, and secure mobile operations.

VSAT (Very Small Aperture Terminal) is a communication technology that uses satellite systems to establish two-way data communication between remote locations. Here are some common terminologies associated with VSAT:

1. VSAT:
Very Small Aperture Terminal. It refers to the complete satellite communication system consisting of a small dish antenna, a transceiver (transmitter/receiver), and other components required for communication.

2. Hub:
The central location in a VSAT network that manages and controls the communication between the hub and remote VSAT terminals.

3. Remote Terminal:
Also known as a VSAT terminal or outdoor unit (ODU), it is the equipment installed at the remote location to establish communication with the hub via satellite.

4. Antenna:
The dish-shaped parabolic antenna used to transmit and receive signals between the VSAT terminal and the satellite. It has a small aperture size, typically ranging from 0.6 meters to 3.8 meters.

5. Transceiver:
The device that combines the functions of a transmitter and a receiver, allowing the VSAT terminal to send and receive data over the satellite link.

6. Link Budget:
A calculation that determines the overall performance and feasibility of a satellite communication link. It takes into account factors such as the transmit power, antenna gain, cable losses, atmospheric effects, and satellite signal strength.

7. Carrier Frequency:
The frequency at which the VSAT terminal transmits and receives signals to communicate with the satellite. It is typically specified in GHz (gigahertz).

8. Modulation:
The process of encoding data onto a carrier signal for transmission over the satellite link. Common modulation schemes used in VSAT systems include BPSK (Binary Phase-Shift Keying), QPSK (Quadrature Phase-Shift Keying), and 8PSK (8-Phase Shift Keying).

9. Rain Fade:
A temporary degradation of the satellite signal caused by heavy rainfall. Rain fade can attenuate or weaken the signal, affecting the quality and reliability of the VSAT communication.

10. Latency:
The time delay experienced in satellite communication due to the distance that signals need to travel between the VSAT terminal, satellite, and the hub. Latency in VSAT systems is typically higher compared to terrestrial communication due to the signal's travel time through space.

These are some of the commonly used terminologies in the context of VSAT technology. Understanding these terms can help in better comprehending and discussing VSAT systems and their operation.

Here are a few more terminologies related to VSAT:

11. Beam:
In satellite communications, a beam refers to the coverage area of a satellite's signal. Satellites often have multiple beams that cover different geographical regions.

12. Spot Beam:
A spot beam is a narrow and focused beam of the satellite's signal that provides high-power and concentrated coverage to a specific region. Spot beams allow for more efficient use of satellite capacity and increased bandwidth in specific areas.

13. Footprint:
The footprint of a satellite refers to the area on the Earth's surface that is covered by the satellite's signal. It is determined by the characteristics of the satellite's antenna pattern and beam.

14. Bandwidth:
Bandwidth is the maximum amount of data that can be transmitted over a communication link in a given time. In the context of VSAT, bandwidth determines the capacity or speed of data transfer between the remote terminal and the hub.

15. Modem:
The VSAT modem is a device that connects to the VSAT terminal and provides the interface between the terminal and the network. It modulates/demodulates the data for transmission and reception, and also handles error correction and other communication protocols.

16. TCP/IP:
Transmission Control Protocol/Internet Protocol is a set of communication protocols that enable data transmission over networks, including the internet. VSAT systems often utilize TCP/IP for data exchange between the remote terminal and the hub.

17. QoS (Quality of Service):
QoS refers to the ability of a communication system to prioritize and deliver different types of traffic according to their specific requirements. In VSAT networks, QoS mechanisms are used to ensure the reliable and efficient transmission of data, voice, or video traffic.

18. Redundancy:
Redundancy is the provision of backup or duplicate components in a system to ensure reliability and fault tolerance. In VSAT networks, redundancy may be employed in various elements such as power supplies, antennas, or hub equipment to minimize downtime and maintain continuous communication.

19. Network Management System (NMS):
The NMS is a software-based system used to monitor and control the VSAT network. It enables network administrators to manage and configure remote terminals, monitor network performance, troubleshoot issues, and perform maintenance tasks.

20. Service Level Agreement (SLA):
An SLA is a contractual agreement between the VSAT service provider and the customer. It outlines the specific quality, reliability, and performance guarantees provided by the service provider, such as uptime, data rates, response time, and customer support.

These additional terms should further enhance your understanding of VSAT technology and its associated concepts.

Here are a few more VSAT terminologies:

21. Link Encryption:
Link encryption is the process of encoding the data transmitted over the VSAT link to ensure secure communication. Encryption techniques like AES (Advanced Encryption Standard) or DES (Data Encryption Standard) may be used to protect sensitive information from unauthorized access.

22. Interference:
Interference refers to the unwanted signals or disturbances that can affect the quality of the VSAT communication. It can be caused by nearby electronic devices, other satellite systems operating on similar frequencies, or atmospheric conditions.

23. Rain Fade Mitigation:
Rain fade mitigation techniques are employed to minimize the impact of rain fade on the VSAT link. This can include the use of higher power transmitters, larger antennas, adaptive modulation schemes, and error correction techniques to maintain signal quality during heavy rainfall.

24. Polarization:
Polarization refers to the orientation of the electromagnetic waves transmitted and received by the VSAT antenna. Common polarization types in VSAT systems include linear polarization (horizontal and vertical) and circular polarization (right-hand and left-hand).

25. Carrier-to-Noise Ratio (C/N):
The carrier-to-noise ratio is a measure of the strength of the signal compared to the background noise in the system. A higher C/N ratio indicates better signal quality and improved communication performance.

26. EIRP (Effective Isotropic Radiated Power):
EIRP is a measure of the power radiated by the VSAT antenna in a specific direction. It takes into account the transmit power and the antenna gain and is used to assess the signal strength and coverage area of the VSAT system.

27. Hubless VSAT:
Hubless VSAT, also known as mesh VSAT, is a decentralized VSAT network architecture where each remote terminal can communicate directly with other remote terminals without relying on a central hub. This architecture allows for more flexible and dynamic communication between terminals.

28. SCPC (Single Channel Per Carrier):
SCPC is a VSAT transmission technique where each VSAT terminal is allocated a dedicated carrier frequency for communication. It is often used for applications that require constant and dedicated bandwidth, such as point-to-point links or video broadcasting.

29. TDMA (Time Division Multiple Access):
TDMA is a multiple access technique used in VSAT networks to share the available bandwidth among multiple remote terminals. It divides the transmission time into discrete time slots, allowing different terminals to transmit and receive data during their assigned time slots.

30. Rain Margin:
Rain margin is the additional power or link margin added to the VSAT system to compensate for the effects of rain fade. It ensures that the system maintains reliable communication even during adverse weather conditions.

These additional terminologies should further enhance your understanding of VSAT technology and its related concepts.

  1. Entering the English page