Cisco Systems 3700 Series manual ROM Monitor Syntax Conventions, ROM Monitor Command Descriptions

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Appendix B Using the ROM Monitor

ROM Monitor Syntax Conventions

help

monitor builtin

command help

history

monitor command

history

iomemdef

set IO mem to

a default 25%

meminfo

main memory information

repeat

repeat a monitor command

reset

system reset

 

rommon-pref

select ROMMON

 

set

display the monitor variables

stack

produce a stack

trace

sync

write monitor environment to NVRAM

sysret

print out info from last system return

tftpdnld

tftp image download

unalias

unset an alias

 

unset

unset a monitor

variable

xmodem

x/ymodem image download

rommon 2>

 

 

Note Not all ROM monitor commands are available on all platforms.

To display information about command syntax, enter the command name followed by -?. ROM monitor commands are case-sensitive. Enter commands exactly as shown. You can end any command by generating a Break (system interrupt) at the console.

ROM Monitor Syntax Conventions

ROM monitor syntax in this appendix uses the following conventions:

Square brackets [ ] denote an optional element. In the following example, the element abc is not required, but you can specify it if you choose:

command [abc]

If a minus option is followed by a colon (for example, [-s:]) you must provide an argument for the option.

A term in italics means that you must fill in the appropriate information. In the following example, you replace the term in italics with the interface type you are using:

command interface-type

ROM Monitor Command Descriptions

This section describes some useful ROM monitor commands. See the Cisco IOS configuration guides and command references for more information on ROM monitor commands.

Boot Commands in the ROM Monitor

The router always boots first from a Cisco IOS software image in CompactFlash memory, because there is no separate, dedicated boot helper image ([rx]boot). The first image in CompactFlash memory functions as the boot helper image, but you can override this by setting the BOOTLDR Monitor

Cisco 3700 Series Routers Hardware Installation Guide

 

OL-2180-08

B-3

 

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Contents Corporate Headquarters Cisco 3700 Series Routers Hardware Installation GuideBook Title N T E N T S Site Environment Entering ROM Monitor Mode B-1 Cisco 3700 Series Routers Hardware Installation Guide Objectives PrefaceChapter Title Description AudienceOrganization ConventionsBewaar Deze Instructies Safety WarningsAvvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseGuarde Estas Instruções Aviso Instruções Importantes DE SegurançaGEM Disse Anvisninger Xiii Related Documentation Cisco Product Document Title Ordering Documentation Obtaining DocumentationDocumentation Feedback Cisco.comCisco Technical Support Website Submitting a Service RequestObtaining Technical Assistance Obtaining Additional Publications and Information Definitions of Service Request SeverityXix OL-2180-08 Cisco Hardware Features1shows the rear panel of the Cisco 3725 router 2shows the rear panel of the Cisco 3745 router Modules, Interface Cards, and MemoryMemory Description SpecificationWAN and LAN Interface Numbering Interface NumberingCisco 3725 Interfaces Gigabit Ethernet 2/0 Voice Interface NumberingCisco 3745 Interfaces Network-module-slot/voice-module-slot/voice-interface Power Supply Option Cisco Power Supply OptionsInternal -48 V Telephony Power Modules Cisco 3725 Router with Optional -48 V Power Module Installed System Specifications Regulatory Compliance Safety Recommendations Preparing to Install the RouterPreventing Electrostatic Discharge Damage Safety with ElectricityGeneral Site Requirements Power Supply ConsiderationsRouter Power Supply Input Power Input Voltage Equipment Racks Site ConfigurationSite Environment Task Verified by Date Installation ChecklistInspecting the Router Creating a Site LogPage Auxiliary Port Connections Console and Auxiliary Port ConsiderationsConsole Port Connections Ethernet Connections Preparing to Connect to a NetworkSerial DTE or DCE Devices Configuring Serial ConnectionsToken Ring Connections Serial ConnectionsDevice Type Gender Typical Devices Signaling Standards SupportedDistance Limitations Distance EIA-530 Distance Rate bps Feet Meters Isdn BRI ConnectionsAsynchronous/Synchronous Serial Module Data Rates EIA/TIA-232Low-Capacitance Cable 56-K/Switched-56-kbps DSU/CSU ConnectionsOL-2180-07 Installing the Router Setting the Chassis on a Desktop Setting Up the ChassisRack-Mounting the Chassis LeftCisco 3745 Router-Brackets for 19-Inch Rack Attaching Brackets to the Cisco 3725 RouterRight wide bracket Right Attaching Brackets to the Cisco 3745 Router63387 Mounting the Router in a Rack11 Mounting the Chassis in a Rack Typical Installing the Chassis Ground ConnectionGround lug Cisco 3725 Router Ground ConnectionCisco 3745 Router Ground Connection Installing the Router Power Connections Power Connections15A, 120VAC 10A, 240VAC. Statement Connecting Routers to AC PowerConnecting Routers to a DC-Input Power Supply Wiring the DC-Input Power Supply in Cisco 3725 RoutersSource DC Input Wire Size Wire Terminal Lug Protection DC Power DC Input+ B 17 DC Wire Routing and Attachment for Cisco 127039 Wiring the DC-Input Power Supply in Cisco 3745 Routers Installed Power Supply DC Input Size Wire Size DC Input WireNegative polarity input 0V return Safety ground Ports and Cabling Connecting WAN, LAN, and Voice CablesConnecting Routers to the Cisco Redundant Power System Port or Connection Port type, color Cable Connection Procedures and PrecautionsConnecting to the Console Port Connecting to a Console Terminal or Modem24 Connecting a Console Terminal to a Cisco 3725 Router Specifications on Cisco.com Connecting to the Auxiliary Port28 Identifying a Rollover Cable Identifying a Rollover CableFront Panel Indicators Powering Up the RouterChecklist for Power Up Cisco 3745 LED Indicators Power-Up ProcedureYourname con0 is now available Press Return to get started Initial Configuration Using the Setup Command Facility Configuring the RouterInitial Configuration Using SDM Shown as examples only Configuration is displayed Initial Configuration Using the CLI Manual Configuration Press Return to bring up the Router prompt OL-2180-08 Troubleshooting Troubleshooting the Power and Cooling Systems Solving ProblemsTroubleshooting Modules, Cables, and Connections Environmental Reporting FeaturesACT LED SYS/RPS LED PWR LED Reading Front-Panel LEDsSYS/RPS LED Indicator State DescriptionSYS PS1 Reading Rear Panel LEDsPower ETM Error MessagesLED Type LED Color Message System Amber ErrorPS1, PS2 Amber Error LED on PS1, PS2 Amber Recovering a Lost Password Entering ROM Monitor Mode Using the ROM MonitorEnter ROM Monitor Mode by Using the reload Command ROM Monitor CommandsROM Monitor Syntax Conventions ROM Monitor Command DescriptionsBoot Commands in the ROM Monitor Cisco 3700 Series Routers Hardware Installation Guide Informational Commands in the ROM Monitor Configuration Register Other Useful ROM Monitor CommandsDebugging Commands in the ROM Monitor Modifying the Configuration Register by Hexadecimal Entry Modifying the Configuration Register in Menu ModeConsole Requirements Recovering Cisco IOS Software ImagesDescription and Options of the xmodem Command Messages similar to the following appear Procedure for the xmodem CommandOL-2180-08 Bit Number Hexadecimal Meaning Configuration Register SettingsYour router is now in the normal operating mode Changing Configuration Register SettingsBoot Field Meaning Configuring the Boot FieldBit Address net host Data Rate Bit Enabling Booting from CompactFlash MemoryOL-2180-08 Symbols IN-2 IN-3 IN-4 IN-5 IN-6

3700 Series specifications

Cisco Systems 3700 Series routers are a pivotal part of Cisco's portfolio, designed for medium to large enterprises aiming to deliver secure and efficient networking capabilities. Introduced as a versatile solution, these routers provide a comprehensive blend of performance, scalability, and investment protection.

One of the standout features of the Cisco 3700 Series is its modular architecture, allowing organizations to customize their router according to specific needs. This modularity supports various modules for different functions, including voice, data, and video, making the 3700 Series an ideal choice for converged networking environments. Administrators can enhance functionality through an array of WAN and voice interface cards that adapt as the organization's needs evolve.

The 3700 Series is built on Cisco's IOS (Internetwork Operating System), ensuring robust and high-quality performance. It supports advanced routing protocols including EIGRP, OSPF, and BGP, facilitating efficient data transmission across diverse environments. This versatility helps organizations implement sophisticated multi-site connectivity and enables reliable performance in complex network scenarios.

Security is a paramount concern in modern networking, and the Cisco 3700 Series delivers with features such as integrated firewall services, VPN support, and intrusion detection capabilities. These security measures protect sensitive data and ensure secure communication between remote sites—critical in today’s cyber landscape.

Another key characteristic of the 3700 Series is its support for Quality of Service (QoS), which prioritizes time-sensitive traffic such as voice and video. By ensuring that critical applications receive the bandwidth they require, organizations can maintain the quality of service that their users expect.

Moreover, the Cisco 3700 Series is designed with redundancy in mind. Features like dual power supplies and hot-swappable fan trays enhance reliability and uptime, which are crucial for mission-critical applications.

Furthermore, energy efficiency is an increasingly important consideration in network design. The Cisco 3700 Series adheres to modern energy standards, helping reduce the overall carbon footprint while supporting high-performance capabilities.

In summary, the Cisco Systems 3700 Series routers stand out for their modularity, advanced routing capabilities, robust security features, and energy efficiency, making them an optimal choice for enterprises that not only need performance but also flexibility and reliability in their networking solutions. As businesses continue to evolve and adapt, the Cisco 3700 Series is a dependable partner in their connectivity journey, ensuring they can meet current demands while preparing for future challenges.