Chassis Overview

Two models are available:

Both models use the same software and share a system architecture and common components:

Switch route processors (SRPs)—Perform system management, routing table calculations maintenance, forwarding table computations, and other control plane functions
Switch fabric modules (SFMs)—Create a distributed shared memory switching fabric
Line modules (LMs)—Are frame processing and forwarding engines for IOAs
Input/output adapter (IOA)—Provide the physical connection to the network via 10–Gigabit Ethernet, Ethernet, ATM, and Packet over SONET (PoS) interfaces
Power modules—Distribute redundant power feeds through the system to all components