Cisco 2911 Configuration Guide

B-2
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Appendix B Using CompactFlash Memory Cards
Online Insertion and Removal
Online Insertion and Removal
Online insertion and removal (OIR) is a feature that allows you to replace CF memory cards without
turning off the router and without affecting the operation of other interfaces. OIR of CF memory cards
provides uninterrupted operation to network users, maintains routing information, and ensures session
preservation.
Caution The external CF memory card should not be removed if the flash memory busy “CF” LED on the router
is blinking, because this indicates that the software is accessing the CF memory card. Removing the CF
memory card may disrupt the network, because some software features use the CF memory card to store
tables and other important data.
For instructions on inserting, removing, and replacing the external CF memory card, see the hardware
installation guide for your router.
How to Format CompactFlash Memory Cards
This section contains the following procedures:
• Determining the File System on a CompactFlash Memory Card, page B-2
• Formatting CompactFlash Memory as a Class C File System, page B-3
Determining the File System on a CompactFlash Memory Card
To determine the file system of a CF memory card, enter the show flash: all command in privileged
EXEC mode.
• If geometry and format information does not appear in the output, the card is formatted with a
Class B flash file system. Class B files systems are not supported on CF inserted in Cisco 3900
Series, 2900 Series, and 1900 Series Integrated Services Routers.
• If geometry and format information appears in the output, the card is formatted with a Class C flash
file system.
The following examples show sample outputs for Class B and Class C flash file systems.
Note Use flash1: in the command syntax to access CF in slot1. Use flash0: in the command syntax
to access CF in slot0.
Table B-1 Compact Flash Slot Numbering and Naming
Slot Number CF Filenames Size
1
1. The maximum storage capacity for the CF in Slot0 and Slot1 is 4GB.
Slot0
2
2. Slot 0 is the default CF slot. CF in slot0 can store system image, configuration, and data files. CF must be present in this slot
for the router to boot and perform normal file operations.
flash0: 256MB
Slot1
flash1: 0

Cisco 2911 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
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
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
Firewall security	Cisco IOS
Input current	2.2 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	50 W
Product color	Black
Rack capacity	2U
Operating altitude	0 - 4000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 80 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	5 - 85 %
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	304.8 mm
Width	438.2 mm
Height	88.9 mm
Weight	8200 g