Cisco 1600 - Manual (Page 7)

Copyright (c) 1986−2002 by cisco Systems, Inc.
Compiled Fri 12−Jul−02 03:29 by pwade
Image text−base: 0x0803A50C, data−base: 0x02005000
ROM: System Bootstrap, Version 11.1(7)AX [kuong (7)AX], EARLY DEPLOYMENT
RELEASE SOFTWARE (fc2)
ROM: 1600 Software (C1600−BOOT−R), Version 11.1(7)AX, EARLY DEPLOYMENT RELEASE
SOFTWARE (fc2)
Router−1600 uptime is 3 days, 8 hours, 1 minute
System returned to ROM by power−on
System image file is "flash:c1600−y−l.122−10b.bin"
cisco 1604 (68360) processor (revision C) with 4608K/1536K bytes of memory.
Processor board ID 04607098, with hardware revision 00000000
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
1 ISDN Basic Rate interface(s)
U interface with external S bus interface for ISDN Basic Rate interface.
System/IO memory with parity disabled
2048K bytes of DRAM onboard 4096K bytes of DRAM on SIMM
System running from FLASH
7K bytes of non−volatile configuration memory.
16384K bytes of processor board PCMCIA flash (Read ONLY)
Configuration register is 0x2102
For more information, see Comparison of Cisco 1601−Cisco 1604 and Cisco 1605−R Memory Architectures.
Boot Sequence
All Cisco products do not have the same components or mechanisms to boot. This section describes the boot
sequence in the Cisco 1600 Series Router.
The boot ROM which is read−only memory contains two programs:
The ROM monitor or ROMmonThe ROMmon is a diagnostic image that provides the user with a
limited subset of commands. This diagnostic mode is most often used during recovery procedures
(forgotten password or wrong/corrupted Cisco IOS software). It is possible to view or modify the
configuration register from this mode and to perform a Cisco IOS software upgrade through the
xmodem transfer.
•
The Bootstrap (RxBoot)The bootstrap program is written to find and load a copy of Cisco IOS
software based on the settings of the configuration register. The Cisco IOS software image can be
located either on the system Flash, on a PCMCIA Flash card, or on a Trivial File Transfer Protocol
(TFTP) server. Usually, the Cisco IOS software image resides on the PCMCIA Flash card.
•
When a Cisco 1600 Series Router is first powered up, the boot−up sequence involves these steps:
ROMmon (in Boot ROM) takes control of the Main Processor and handles the following:
Control register settings.
♦
Console settings.
♦
Initial diagnostic tests of memory and other hardware.
♦
Data structure initialization.
♦
Flash file system (MONLIB) setup.
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1.
Cisco − Cisco 1600 Series Router Architecture