Cisco 2901 User Manual

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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Upgrading the Cisco IOS Software
How to Upgrade the Cisco IOS Image
14. When prompted to save the system configuration, enter no.
15. When prompted to confirm the reload, enter y.
16. show version
DETAILED STEPS
Step 1 dir flash0:
Use this command to display a list of all files and directories in flash memory:
Router# dir flash0:
Directory of flash0:/
3 -rw- 6458388 Mar 01 1993 00:00:58 c38xx.tmp
1580 -rw- 6462268 Mar 06 1993 06:14:02 c38xx-ata
63930368 bytes total (51007488 bytes free)
Note Determine whether the new system image is the first file or the only file listed in the dir flash0:
command output ( is not required if it is the first file or only file listed).
Step 2 configure terminal
Use this command to enter global configuration mode:
Router# configure terminal
Router(config)#
Step 3 no boot system
Use this command to delete all entries in the bootable image list, which specifies the order in which the
router attempts to load the system images at the next system reload or power cycle:
Router(config)# no boot system
Step 4 If the new system image is the first file or the only file displayed in the dir flash0: command output, you
do not need to perform the following step.
boot system flash0: system-image-filename
Use this command to load the new system image after the next system reload or power cycle. For
example:
Router(config)# boot system flash0: c2900-universalk9-mz.bin
Step 5 (Optional) Repeat to specify the order in which the router should attempt to load any backup system
images.
Step 6 exit
Use this command to exit global configuration mode:
Router(config)# exit
Router#

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