AIR-CT5520-K9, Cisco 5520 Wireless Controller, 20Gbps throughput/1500 APs/2x10GE SFP+

Do Wireless LAN Controllers support both SSHv1 and SSHv2?

Wireless LAN Controllers support only SSHv2.

What is the validity period of manufacturer installed certificates (MICs) on a wireless LAN controller and of the lightweight AP's certificates?

The validity period of a MIC on a WLC is 10 years. The same validity period of 10 years applies to the lightweight AP's certificates from creation (whether it is a MIC or a Self-Signed Certificate (SSC)).

How can I configure VLANs on my Wireless LAN Controller (WLC)?

In the WLC, VLANs are tied to an interface configured in a unique IP subnet. This interface is mapped onto a WLAN. Then, the clients that associate to this WLAN belong to the VLAN of the interface and are assigned an IP address from the subnet to which the interface belongs. In order to configure VLANs on your WLC, complete the procedure in the VLANs on Wireless LAN Controllers Configuration Example.

How many WLANs are supported on WLC?

Since software version 5.2.157.0, WLC can now control up to 512 WLANs for lightweight access points. Each WLAN has a separate WLAN ID (1 through 512), a separate profile name, and a WLAN SSID, and can be assigned unique security policies. The controller publishes up to 16 WLANs to each connected access point, but you can create up to 512 WLANs on the controller and then selectively publish these WLANs (using access point groups) to different access points to better manage your wireless network.

Is Cisco Prime infrastructure or Cisco Prime NAM mandatory for the AVC solution?

No, it is not a mandatory requirement for enabling and using the AVC solution. The Cisco wireless controller web GUI itself provides configuration menus and reporting charts for enabling AVC and monitoring the wireless network. However, Cisco Prime infrastructure is recommended because it can be used across wired devices such as Cisco ASR 1000, Cisco Integrated Services Routers (ISRs), and Cisco wireless networks.

What management tools can we use with AVC?

AVC supports reporting using Cisco Prime Infrastructure with Assurance module.

How many applications does AVC recognize?

AVC currently recognizes thousands of applications, including voice/video, email, file sharing, gaming, and peer-to-peer (P2P) applications.

Do I need a special license to use the AVC feature over a Cisco wireless network?

No.

Does AIR-CT5520-K9 support AVC?

Yes, it support. AVC is currently supported on Cisco 2500, 5500, and 8500 Series Wireless Controllers; Cisco Flex 7500 Series Wireless Controllers; and Cisco Wireless Services Module 2 (WiSM2) when deployed in central mode (formerly local mode running AireOS Version 7.4 or greater).

What is a wireless LAN controller (WLC)?

Wireless networks have become a necessity today. Many corporate environments require deployment of wireless networks on a large scale. Cisco has come up with the concept of the Cisco Unified Wireless Network (CUWN) solution, which helps make it easier to manage such large scale deployments. WLC is a device that assumes a central role in the CUWN. Traditional roles of access points, such as association or authentication of wireless clients, are done by the WLC. Access points, called Lightweight Access Points (LAPs) in the unified environment, register themselves with a WLC and tunnel all the management and data packets to the WLCs, which then switch the packets between wireless clients and the wired portion of the network. All the configurations are done on the WLC. LAPs download the entire configuration from WLCs and act as a wireless interface to the clients. For more information on how a LAP registers with a WLC, refer to the document Lightweight AP (LAP) Registration to a Wireless LAN Controller.

How cost-effective is the Cisco 5520 Series Wireless Controller?

The AIR-CT5520-K9 offers high performance and scalability, making it a cost-effective choice for large enterprises needing robust wireless control.

What are the key features of the AIR-CT5520-K9?

The AIR-CT5520-K9 includes advanced security, comprehensive WLAN management, and high capacity to support demanding environments.

In what scenarios is the AIR-CT5520-K9 commonly used?

It's ideal for large enterprises, campuses, and data centers requiring centralized wireless network management.

How do I install the AIR-CT5520-K9?

Installation involves mounting the device in a rack, connecting to the network, and configuring settings via the web-based interface or CLI.

Does the AIR-CT5520-K9 require software upgrades?

Yes, regular software updates from Cisco ensure the latest security patches and feature enhancements are applied.

Are there alternatives to the Cisco 5520 Series Wireless Controller?

Alternatives include the Cisco 3504 Wireless Controller and other devices from the Cisco 5500 Series.

How do I troubleshoot common issues with the AIR-CT5520-K9?

Common issues can be resolved by checking network connections, updating firmware, and consulting Cisco's support resources.

What accessories are available for the AIR-CT5520-K9?

Accessories include mounting kits, power supplies, and optional service modules for enhanced functionality.

How does the AIR-CT5520-K9 compare to other similar products?

The AIR-CT5520-K9 provides superior scalability and management capabilities compared to many other wireless controllers in its class.

What are the long-term benefits of using the Cisco 5520 Series Wireless Controller?

Long-term benefits include improved network reliability, enhanced security, and reduced total cost of ownership through efficient network management.

What are the main features of the Cisco 5520 Controller AIR-CT5520-K9?

The Cisco 5520 Controller AIR-CT5520-K9 boasts high scalability, supporting up to 1,500 access points and 20,000 clients. It also offers robust security features and advanced RF management.

How cost-effective is the Cisco AIR-CT5520-K9 for large network deployments?

The Cisco AIR-CT5520-K9 offers excellent scalability and management for large networks, making it a cost-effective solution by reducing the need for multiple controllers.

What is the ideal application scenario for the Cisco 5520 Series Wireless Controller?

The Cisco 5520 Series Wireless Controller is ideal for large enterprises, educational institutions, and other environments requiring high-density wireless connectivity.

How do I install the Cisco AIR-CT5520-K9 Wireless Controller?

Installation involves mounting the controller in a rack, connecting it to your network, and configuring it using the initial setup wizard or CLI commands.

Does the Cisco AIR-CT5520-K9 require regular software upgrades?

Yes, regular software upgrades are recommended to ensure optimal performance, security updates, and access to new features.

Are there any recommended accessories for the Cisco 5520 Wireless Controller?

Recommended accessories include additional power supplies for redundancy, compatible Cisco access points, and transceivers for network connectivity.

How does the Cisco AIR-CT5520-K9 compare with similar wireless controllers?

The Cisco AIR-CT5520-K9 offers higher scalability and more advanced features compared to other controllers in its category, making it suitable for larger deployments.

What are common troubleshooting steps for the Cisco 5520 Series WLAN Controller?

Common steps include checking the physical connections, verifying the software version, reviewing configuration settings, and consulting the Cisco support documentation.

Is there an alternative to the Cisco AIR-CT5520-K9 for smaller deployments?

For smaller deployments, the Cisco 3504 Wireless Controller is a suitable alternative, supporting up to 150 access points.

Can the Cisco 5520 Series Wireless Controller support outdoor access points?

Yes, the Cisco 5520 Series Wireless Controller supports both indoor and outdoor access points, providing flexible deployment options.

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