Chapter 1 Cisco 7500 Series Product Overview
System Software Overview
System Software Overview
In Cisco 7500 series routers, Flash memory on the RSP contains the default system software. An EPROM device on each interface processor contains the latest interface processor microcode version, in compressed form. At system startup, an internal system utility scans for compatibility problems between the installed interface processor types and the bundled microcode images, then decompresses the images into running memory (DRAM). The bundled microcode images then function the same as images loaded from the microcode EPROM.
The Cisco 7500 series routers support downloadable Cisco IOS software and interface processor microcode images, which enables you to remotely download, store, and boot from a new image. The Cisco IOS image runs from the DRAM on the RSP; interface processor microcode images run from the DRAM on the specific interface processor.
The publication Upgrading Software and Microcode in the Cisco 7000 Series Routers which is available online, on the Documentation
| Cisco 7500 Series Installation and Configuration Guide |
