Cisco Systems IPMUX-1E operation manual General, Booting IPmux-1/1E, Boot Sequence

Appendix A

Boot Sequence for

Downloading Software

A.1 General

This chapter provides a description of the IPmux-1/1E boot procedure via an ASCII terminal for downloading software.

The IPmux-1/1E software is stored in flash memory in two sections, in the boot sector and in the file system. The boot sector holds a boot program that calls up the rest of the program from the file system.

The file system can hold two compressed copies of the IPmux-1/1E code. One copy is called the operating file, and the other is called the backup file. The operating file is the default-executable IPmux-1/1E code. The backup file is used whenever the operating file is absent or corrupted.

A.2 Booting IPmux-1/1E

General

IPmux-1/1E boots up automatically. After powering up, no user intervention is required, except when the user wants to access the file system to modify or update the software or the IPmux-1/1E configuration.

Boot Sequence

The following is a description of the boot sequence. If the system is working normally, the entire process is completed within 30 seconds. Refer to Figure A-1.

Booting IPmux-1/1E A-1