Cisco 2911 Configuration Guide

C-22
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Appendix C Using ROM Monitor
How to Use the ROM Monitor—Typical Tasks
DETAILED STEPS
Examples
This section provides the following examples:
• Sample Output for the stack ROM Monitor Command, page C-23
• Sample Output for the context ROM Monitor Command, page C-23
• Sample Output for the frame ROM Monitor Command, page C-24
• Sample Output for the sysret ROM Monitor Command, page C-24
• Sample Output for the meminfo ROM Monitor Command, page C-24
Command or Action Purpose
Step 1
stack
or
k
Example:
rommon > stack
(Optional) Obtains a stack trace.
• For detailed information on how to effectively use this
command in ROM monitor mode, see the
Troubleshooting Router Hangs tech note.
Step 2
context
Example:
rommon > context
(Optional) Displays the CPU context at the time of the fault.
• If it is available, the context from kernel mode and
process mode of a loaded image is displayed.
Step 3
frame [number]
Example:
rommon > frame 4
(Optional) Displays an entire individual stack frame.
• The default is 0 (zero), which is the most recent frame.
Step 4
sysret
Example:
rommon > sysret
(Optional) Displays return information from the last booted
system image.
• The return information includes the reason for
terminating the image, a stack dump of up to eight
frames, and, if an exception is involved, the address at
which the exception occurred.
Step 5
meminfo [-l]
Example:
rommon > meminfo
(Optional) Displays memory information, including:
• Main memory size, starting address, and available
range
• Packet memory size
• NVRAM size
Alternatively, using the meminfo -l command provides
information on supported DRAM configurations for the
router.

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