Cisco 3945 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 3945 Specifications

General

Form Factor	Rack-mountable
Maximum Throughput	75 Mbps
Product Type	Router
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Operating System	Cisco IOS
Flash Memory	256 MB
Network/Transport Protocol	IPSec
Remote Management Protocol	SNMP
Encryption Algorithm	DES, AES
Features	Firewall, VPN, Quality of Service (QoS), VLAN support
Interfaces	2 x USB
Security Features	Intrusion Prevention System (IPS)
Operating Temperature	32 °F to 104 °F (0 °C to 40 °C)
Storage Temperature	-4 °F to 149 °F (-20 °C to 65 °C)
Humidity	10 - 85% (non-condensing)
Memory	2 GB
Expansion Slots	4 (free) x EHWIC ¦ 2 x service module ¦ 1 x ISM ¦ 1 x CompactFlash Card