Cisco 2921 User Manual

B-1
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
APPENDIX
B
Using CompactFlash Memory Cards
Cisco 3900 Series, 2900 Series, and 1900 Series Integrated Services Routers (ISR) use Advanced
Capability CompactFlash (CF) external memory to store the system image, configuration files, and some
software data files. CF supports True IDE mode and Multi-Word DMA mode.
The following sections explain how to manage directories and files on the CF:
• Requirements and Restrictions, page B-1
• Online Insertion and Removal, page B-2
• How to Format CompactFlash Memory Cards, page B-2
• File Operations on CompactFlash Memory Cards, page B-4
• Directory Operations on a CompactFlash Memory Card, page B-7
Requirements and Restrictions
CompactFlash Support
• Only Advanced Capability CF purchased from Cisco operate in Cisco 3900 Series, 2900 Series, and
1900 Series Integrated Services Routers.
• Legacy CF will not operate in Cisco 3900 Series, 2900 Series, and 1900 Series Integrated Services
Routers. When legacy CF is inserted, the following error message appears:
WARNING: Unsupported compact flash detected. Use of this card during normal operation
can impact and severely degrade performance of the system. Please use supported
compact flash cards only.
Formatting CompactFlash
• Only Class C file systems are supported on Cisco Compact Flash (CF).
• We recommend that you format new CF to initialize a new flash file system. Proper formatting lets
ROM monitor recognize and boot the flash memory. The CF can be formatted on an ISR, and files
copied to or from any PC that is equipped with a CF memory reader. If you use a PC to format the
CF, use the Microsoft File Allocation Table (FAT32) file system.
CompactFlash Slots and Files
• Cisco 3900 series, 2900 series, and 1900 series ISRs have 2 external CF slots.
• CF in Slot0 can store the system image, configuration, and data files. The CF must be present in this
slot for the router to boot and perform normal file operations.

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