Cisco Systems 78-16019-02 manual Enabling and Disabling Automatic Synchronization

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Chapter 3 Initial Configuration

Configuring CPU Switch Module Redundancy

Example

The following example shows how to manually synchronize the running configuration:

Switch# redundancy manual-sync running-config

Enabling and Disabling Automatic Synchronization

You can enable and disable automatic synchronization of the running configuration and the startup configuration between the two CPU switch modules. Automatic synchronization ensures that, when a switchover occurs, the standby CPU switch module has the most recent configuration information.

Note By default, the Cisco ONS 15530 automatically synchronizes the running configuration and the startup configuration between the two CPU switch modules.

Table 3-3lists the events that cause the automatic synchronization of the configuration files.

Table 3-3 Synchronization Events for Configuration Files

Filename

When Synchronized

 

 

running-config

Upon exiting from global configuration mode in the CLI, or

 

within 5 seconds after an SNMP message that changes the

 

configuration

 

 

startup-config

When a new configuration is copied to NVRAM on the active

 

CPU switch module

 

 

To enable or disable the system to automatically synchronize the configurations on both CPU switch modules, perform the following steps on the active CPU switch module, beginning in global configuration mode:

 

Command

Purpose

Step 1

 

 

Switch(config)# redundancy

Enters redundancy configuration mode.

 

Switch(config-red)#

 

Step 2

 

 

Switch(config-red)# [no] auto-sync running-config

Enables or disables synchronization of the

 

 

running configuration when it is updated. The

 

 

default state is enabled.

Step 3

 

 

Switch(config-red)# [no] auto-sync startup-config

Enables or disables synchronization of the

 

 

startup configuration when it is updated. The

 

 

default state is enabled.

 

 

 

Example

The following example shows how to disable automatic synchronization of the running configuration:

Switch(config)# redundancy

Switch(config-red)#no auto-sync running-config

Switch(config-red)# end

Switch# copy system:running-config nvram:startup-config

 

 

Cisco ONS 15530 Configuration Guide and Command Reference

 

 

 

 

 

 

78-16019-02, Cisco IOS Release 12.2(18)SV2

 

 

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Contents About the CPU Switch Module Initial ConfigurationYou see the following user Exec prompt Using the Console Ports, NME Ports, and Auxiliary PortsYou can now begin configuring the CPU switch module Starting Up the Cisco ONSModem Support About PasswordsEnable Password Enable Secret PasswordCommand Purpose Configuring IP Access on the NME InterfaceDisplaying the NME Interface Configuration Switchconfig# hostname name Specifies a system name Configuring the Host NameDisplaying the Operating Configurations Switch# configure terminalONS15530# copy systemrunning-config nvramstartup-config Switch# configure terminal Switchconfig# hostname ONS15530About NTP Example Purpose Configuring NTPDisplaying the NTP Configuration CommandConfiguring Authorization Configuring Security FeaturesConfiguring AAA Configuring AuthenticationConfiguring Radius Configuring KerberosConfiguring Traffic Filters and Firewalls Configuring TACACS+Configuring Passwords and Privileges About CPU Switch Module Redundancy State Description CPU Switch Module State Transition DiagramRedundant Operation Requirements Forcing a Switchover from Privileged Exec Mode Configuring CPU Switch Module RedundancyRedundancy switch-activity force Switchover Forcing a Switchover from ROM Monitor ModeBootflash filename Configuring AutobootDisplaying the Autoboot Configuration Switchconfig# config-registerSynchronizing Configurations Manually Synchronizing the ConfigurationsFollowing example shows the contents of the boot variable Enabling and Disabling Automatic Synchronization Filename When SynchronizedSwitchconfig-red# no auto-sync running-config Switchconfig-red# no auto-sync startup-configShow redundancy capability Configuring Maintenance ModeShow redundancy running-config-file Show redundancy summaryExamples Switch# show redundancy summarySwitch# show redundancy capability Following example shows the CPU switch module capabilitiesSby-Switch#show redundancy running-config-file Reloading the CPU Switch ModulesSwitch# redundancy reload peer Standby CPU switch module CLI. The default state Switchconfig-red# standby privilege-modeEnables access to privileged Exec mode from EnableDown About the Software Configuration Register4describes each of the software configuration register bits Software Configuration Register SettingsBit Number Hexadecimal Description Bit Address nethost Boot Field ValuesBit Baud Rate Boot Field Value Description Default System Boot BehaviorBoot Command 7describes the values for the boot fieldDisplays the current configuration register value Changing the Software Configuration RegisterVerify the Configuration Register Value Switch# show versionSwitchconfig# environment-monitor shutdown fan Configuring Fan Failure ShutdownAbout Fan Failure Shutdown Switch# show environment Displaying the Fan Tray Failure Shutdown Configuration78-16019-02, Cisco IOS Release 12.218SV2