Cisco Systems 1800 Series 7

If the rommon 1> prompt appears, your system has booted in ROM monitor mode. For information on using ROM

monitor, refer to the “Troubleshooting and Maintenance” module in the online Cisco1800 series software

configuration documentation at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/1800/sw/index.htm

The indicator LEDs described in Table3 provide power, activity, and status information.

Verify the router hardware configuration by entering the following commands:

•showversion—Displays the system hardware version; the installed software version; the names and sources of configuration

files; the boot images; and the amount of installed DRAM, NVRAM, and flash memory.

•show diag—Lists and displays diagnostic information about the installed controllers, interface processors, and port

adapters. Typical examples are network modules, interface cards (WICs, VWICs, HWICs) and advanced integration

modules (AIMs).

7Interface Numbering

Each individual interface (port) on a Cisco 1841 router is identified by a number. A Cisco 1841 router contains the following

wide-area network (WAN) and local-area network (LAN) interface types:

•Two onboard Fast Ethernet LAN interfaces

•Two slots in which you can install WICs, VWICs (data only), and HWICs

The numbering format for the slots is interface-type 0/slot-number/port-number.Table4 summarizes the interface numbering.

Table3 LED Indicators

LED Color Description Location

SYS PWR Green Router has successfully booted up and the software is functional. This LED blinks

while booting or in the ROM monitor. Front

SYS ACT Green Blinking when any packetsare transmitted or received onany WAN orLAN, or when

monitoring system activity. Front

CF Green On when compact flash memory is busy. Do not remove CompactFlash memory card

when this light is on. Back

FDX(FE 0) Green On indicates full-duplex operation. Off indicates half-duplex operation. Back

100 (FE 0) Green On indicates a 100-Mbps link. Off indicates a 10-Mbps link. Back

Link (FE 0) Green On when the router is correctly connected to a local Ethernet LAN through Ethernet

port 0. Back

FDX(FE 1) Green On indicates full-duplex operation. Off indicates half-duplex operation. Back

100 (FE 1) Green On indicates a 100-Mbps link. Off indicates a 10-Mbps link. Back

Link (FE 1) Green On when the router is correctly connected to a local Ethernet LAN through Ethernet

port 1. Back

AIM Green On indicates presence of an AIM in the internal AIM slot. Back