The NETGEAR® 8800 Series 6-slot and 10-slot Chassis solution simplifies network infrastructures with purpose-built core, aggregation, and intelligent edge modules. Connectivity options include Gigabit copper, Gigabit optical, and 10 Gigabit optical I/O modules, as well as optional 802.3 af power over Ethernet (PoE). Local Switching on every I/O module and 48 Gbps per slot bidirectional bandwidth provide high-density, line-rate connectivity. Redundant, load-sharing power supplies, as well as redundant cooling fans, contribute to a robust hardware system that is highly available. NETGEAR 8800 Series switches combine highly resilient software to provide the levels of resiliency and uptime that have traditionally been associated with voice networks. The NETGEAR OS runs each protocol, such as OSPF or Spanning Tree, as a separate process that is protected from other processes. This preemptive multitasking increases system integrity and inherently protects against Denial of Service (DoS) attacks.