The Cisco® Catalyst® 6840-X Series Switch (Figure 1) is a 2RU fixed backbone switch in the Cisco Catalyst 6800 family. The 6840-X is based on the Cisco Catalyst 6800, with more than 3000 features and maturity of software code. The Cisco Catalyst 6840-X is the smallest Multiprotocol Label Switching (MPLS) aggregator or Instant Access controller in the Cisco 6800 Catalyst Family. The 6840-X offers the following four SKUs: - 16 and 32 ports of 10G SFP/SFP+ - 24 and 40 ports of 10G SFP/SFP+ with 2 Native uplink ports of 40G QSFP This 10G/40G-ready platform is ideal for those who want to introduce premium 10G services in small or midsize campus backbones. This unique platform offers 10G port density, full IPv4/IPv6 and MPLS/VPLS functionality with large table sizes (up to 256,000 FIB entries), and more than 15 years of best-in-class features. With a full suite of L2/L3, virtualization, security, multicast, IPv6, application visibility, smart operations, and rich media services, the Cisco Catalyst 6840-X delivers unprecedented capabilities on day one. This platform also runs on the same architecture as the Cisco Catalyst 6500 Supervisor Engine 2T and therefore offers stability with proven operating system software. The Cisco Catalyst 6840-X Series chassis offers integrated resiliency by providing 1+1 power supply redundancy, single removable fan-tray with four redundant fans, and support for Virtual Switching System (VSS), thereby limiting network downtime, and makes sure of workforce productivity, customer satisfaction, and profitability.