Fully redundant Cisco Catalyst 6509 Core Network. 2x Cisco Catalyst 6509 Chassis. 2x WS-C6509-E-FAN - Cisco Catalyst 6509 Fan Tray. Cisco Networking. 4x WS-SUP720-3B (with WS-F6K-PFC3B Installed) - Cisco Supervisor 720 with integrated Fabric Switch.
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