Cisco 2921 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
DETAILED STEPS
Step 1 enable
Use this command to enter privileged EXEC mode. Enter your password if prompted:
Router> enable
Password: <password>
Router#
Step 2 copy tftp flash0:
or
copy rcp flash0
Use one of these commands to copy a file from a server to flash memory:
Router# copy tftp flash0:
Step 3 When prompted, enter the IP address of the TFTP or RCP server:
Address or name of remote host []? 10.10.10.2
Step 4 When prompted, enter the filename of the Cisco IOS software image to be installed:
Source filename []? c2900-universalk9-mz.bin
Note The filename is case sensitive.
Step 5 When prompted, enter the filename as you want it to appear on the router. Typically, the same filename
is entered as was used in Step 4:
Destination filename []? c2900-universalk9-mz.bin
Step 6 If an error message appears that says, “Not enough space on device,” do one of the following as
appropriate:
• If you are certain that all the files in flash memory should be erased, enter y when prompted twice
to confirm that flash memory will be erased before copying:
Accessing tftp://10.10.10.2/c2900-universalk9-mz.bin...
Erase flash0: before copying? [confirm] y
Erasing the flash filesystem will remove all files! Continue? [confirm] y
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
• If you are not certain that all the files in flash memory should be erased, press Ctrl-Z and follow the
instructions in the “Ensuring Adequate Flash Memory for the New System Image” section on
page 223.
Step 7 If the error message does not appear, enter no when prompted to erase the flash memory before copying:
Accessing tftp://10.10.10.2/c2900-universalk9-mz.bin...
Erase flash0: before copying? [confirm] no
Troubleshooting Tips
See the Common Problems in Installing Images Using TFTP or an RCP Server tech note.

Cisco 2921 Specifications

General

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, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
Product color	Black
Rack capacity	2U
USB version	2.0
RS-232 ports	1
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
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
Firewall security	Cisco IOS
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 %
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
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	469.9 mm
Width	438.2 mm
Height	88.9 mm
Weight	13200 g