Cisco 2901 User Manual

C-9
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Appendix C Using ROM Monitor
How to Use the ROM Monitor—Typical Tasks
SUMMARY STEPS
1. boot
or
boot flash0:[filename]
or
boot filename tftpserver
or
boot [filename]
or
boot usbflash0:[filename]
DETAILED STEPS
Command or Action Purpose
Step 1
boot
or
boot flash0:[filename]
or
boot filename tftpserver
1
or
boot [filename]
or
boot usbflash0:[filename]
Example:
ROMMON > boot
Example:
ROMMON > boot flash0:
Example:
ROMMON > boot someimage 172.16.30.40
Example:
ROMMON > boot someimage
Example:
ROMMON > boot usbflash0:someimage
1. Cisco 3925E and Cisco 3945E do not support this boot option.
In order, the examples here direct the router to:
• Boot the first image in flash memory.
• Boot the first image or a specified image in flash
memory.
Note In IOS, flash0 will be aliased onto flash.
• Boot the specified image over the network from the
specified TFTP server (hostname or IP address).
• Boot from the boothelper image because it does not
recognize the device ID. This form of the command is
used to boot a specified image from a network (TFTP)
server.
• Boot the image stored on the USB flash device.
Note Platforms can boot from USB in ROM monitor with
or without a compact flash device. It is not
necessary to use a bootloader image from the
compact flash device. Partitions, such as
usbflash0:2:image_name, are not supported on USB
flash drives. The boot usbflash<x>: command will
boot the first file on the device, if it is a valid image.
You can override the default boothelper image setting by
setting the BOOTLDR Monitor environment variable to
point to another image. Any system image can be used for
this purpose.
• Options for the boot command are -x (load image but
do not execute) and -v (verbose).

Cisco 2901 Specifications

General

Operating altitude	0 - 3000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 85 %
Ethernet LAN	Yes
Cabling technology	10/100/1000BASE-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
USB version	2.0
RS-232 ports	1
Expansion slots	4 x EHWIC 2 x DSP 1 x ISM
Ethernet LAN (RJ-45) ports	2
Firewall security	Cisco IOS
Input current	1.5 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	40 W
Product color	Black
Rack capacity	1U
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Flash memory	256 MB
Internal memory	512 MB
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	439.4 mm
Width	438.2 mm
Height	44.5 mm
Weight	6100 g