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Cisco AIR-CT5520-K9 5520 Wireless Controller 20Gbps 1500 AP

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Cisco AIR-CT5520-K9 is an enterprise wireless controller designed to centrally manage large WLAN deployments. Its 20Gbps throughput, 1,500-AP capacity, dual 1/10GbE connectivity and robust authentication support suit scalable enterprise networks.

OVERVIEW

  • The Cisco AIR-CT5520-K9 is a Cisco 5520 Series enterprise wireless controller built for organizations managing large-scale wireless infrastructure. Supporting up to 1,500 APs and 20Gbps throughput, it provides centralized WLAN control with dual 1/10GbE SFP+ connectivity. Its broad 802.11 and AAA/security support makes it suitable for enterprise, campus and data-center-connected deployments.

USE CASES

  • Large enterprise campus WLAN controller deployment
  • High-density corporate wireless network management
  • Centralized access-point control across office locations
  • Enterprise 802.1X authentication for managed Wi-Fi
  • RADIUS-based wireless access control environments
  • Secure WLAN infrastructure with WPA2 and AES
  • Large-scale AP administration for growing organizations
  • Data-center-connected enterprise wireless infrastructure
  • Central wireless management for multi-building campuses
  • Network upgrades requiring 1/10GbE controller uplinks

KEY FEATURES

  • 20Gbps throughput supports high-volume WLAN traffic
  • Supports up to 1,500 access points for large deployments
  • Dual 1/10GbE ports enable scalable network uplinks
  • Link aggregation improves uplink capacity and resilience
  • 10/100/1000 RJ-45 console enables management access
  • Supports 802.11a/b/g/d/e/h/k/n/r/u/w/ac WLAN standards
  • IEEE 802.1X supports enterprise network authentication
  • RADIUS authentication integrates centralized AAA services
  • TACACS supports authenticated management-user access
  • WPA and WPA2 security protect enterprise wireless access
  • AES encryption supports stronger WLAN data protection
  • DTLS AES-CBC supports protected controller communications
  • IPsec encryption supports secured network communications
  • Supports EAP-TLS for certificate-based authentication
  • Multiple AP license tiers enable capacity-based expansion

TECHNICAL SPECIFICATIONS

  • Brand: Cisco
  • Model: AIR-CT5520-K9
  • Series: Cisco 5520 Series
  • Product Type: Wireless LAN Controller
  • Device Type: Enterprise Wireless Controller
  • Maximum Throughput: 20 Gbps
  • Maximum AP Capacity: Up to 1,500 Access Points
  • Network Interfaces: Dual 1-Gb or 10-Gb Ports
  • Uplink Type: SFP+
  • Link Aggregation: Supported
  • Console Interface: 10/100/1000 RJ-45
  • Wireless Standards: 802.11a/b/g/d/e/h/k/n/r/u/w/ac
  • 5 AP License: L-LIC-CT5520-5A
  • 25 AP License: L-LIC-CT5520-25A
  • 50 AP License: L-LIC-CT5520-50A
  • 100 AP License: L-LIC-CT5520-100A
  • 250 AP License: L-LIC-CT5520-250A
  • DTLS License: L-LIC-CT5520-DTLS-K9
  • Wireless Security: WPA and WPA2
  • Security Standard: IEEE 802.11i
  • Network Authentication: IEEE 802.1X
  • RADIUS Authentication: Supported
  • RADIUS Accounting: Supported
  • TACACS Management: Supported
  • EAP Support: EAP-TLS
  • Web-Based Authentication: Supported
  • Encryption Support: WEP, TKIP-MIC, AES
  • AES Modes: CBC, CCM, CCMP
  • DES Encryption: DES-CBC
  • 3DES Encryption: Supported
  • SSL/TLS Encryption: Supported
  • TLS Versions: TLS 1.0 and TLS 1.1
  • DTLS Encryption: AES-CBC
  • IPsec Encryption: DES-CBC, 3DES, AES-CBC
  • RFC 1321: MD5 Message-Digest Algorithm
  • RFC 2104: HMAC Keyed Hashing
  • RFC 2246: TLS Protocol Version 1.0
  • RFC 2401: IPsec Security Architecture
  • RFC 2409: Internet Key Exchange
  • RFC 3280: X.509 PKI Certificate and CRL Profile
  • RFC 3602: AES-CBC with IPsec
  • RFC 3686: AES Counter Mode with IPsec ESP
  • RFC 4347: Datagram Transport Layer Security
  • AP Scalability: Designed for up to 1,500 APs
  • Uplink Scalability: 1GbE or 10GbE connectivity
  • Management Access: RJ-45 Console
  • Enterprise AAA: Authentication, Authorization and Accounting
  • Compatibility: Cisco-supported WLAN access points
  • Deployment: Enterprise WLAN Infrastructure
  • Application: Centralized Wireless Network Management
  • Positioning: Cisco 5520 Series High-Capacity WLC

WHY CHOOSE THIS PRODUCT?

  • High-capacity WLAN management: 20Gbps throughput and support for up to 1,500 APs provide substantial headroom for large enterprise wireless environments.
  • Flexible uplink architecture: Dual 1/10GbE SFP+ ports allow buyers to align controller connectivity with existing network infrastructure.
  • Centralized wireless administration: Consolidating WLAN control helps IT teams manage large access-point estates from a centralized controller platform.
  • Enterprise authentication: IEEE 802.1X, RADIUS, EAP-TLS and TACACS capabilities support structured identity and administrative access requirements.
  • Security-focused connectivity: WPA/WPA2, AES, DTLS and IPsec technologies provide multiple mechanisms for protecting wireless and controller communications.
  • Capacity-based licensing: 5-, 25-, 50-, 100- and 250-AP license options provide a defined path for expanding managed AP capacity.
  • Enterprise-ready management access: A 10/100/1000 RJ-45 console interface provides dedicated local management connectivity.
  • Scalable infrastructure investment: The 1,500-AP capacity makes the platform suitable where wireless requirements extend beyond smaller controller deployments.

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