Syntax Description

Default

This command has no default setting.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

If no module number or module number of the active supervisor engine is specified, the command resets the entire system.

You can use the reset mod_num command to switch to the standby supervisor engine, where mod_num is the slot number of the active supervisor.

Where mod_num is an MSM, both the MSM hardware and software are completely reset.

Examples

This example shows how to reset the supervisor engine on a Catalyst 6000 family switch with redundant supervisor engines:

Console> (enable) reset 1
This command will force a switch-over to the standby supervisor module
and disconnect your telnet session.
Do you want to continue (y/n) [n]? y
Connection closed by foreign host.
host%
 

This example shows how to reset module 4:

Console> (enable) reset 4
This command will reset module 4 and may disconnect your telnet session.
Do you want to continue (y/n) [n]? y
Resetting module 4...
Console> (enable)
 

Syntax Description

Default

This command has no default setting.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

After you enter this command, the system responds with the Enter Password: prompt, if one is configured on the module.

To end the session, enter the quit command.

Use the session command to toggle between router and switch sessions.

For information on ATM commands, refer to the ATM Configuration Guide for the Catalyst 6000 family switches.

Example

This example shows how to open a session with an MSM (module 4):

Console> session 4
Trying Router-4...
Connected to Router-4.
Escape character is \Q^]'.
 
Router>

Related Commands

Syntax Description

This command has no arguments or keywords.

Default

This command has no default setting.

Command Type

ROM monitor command.

Command Mode

Normal.

Example

This example shows how to display all of the ROM monitor variable names with their values:

rommon 2 > set 
PS1=rommon ! > 
BOOT=
?=0

Related Command

Syntax Description

Default

The default is no aliases are configured.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guideline

The name all cannot be defined as an alias. Reserved words cannot be defined as aliases.

Example

This example shows how to set the alias for the clear arp command as arpdel:

Console> (enable) set alias arpdel clear arp
Command alias added.
Console> (enable) 

Related Commands

Syntax Description

Default

The default is local authentication is enabled for both console and Telnet sessions. RADIUS and Tacacs+ are disabled for both console and Telnet sessions.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guideline

Authentication configuration applies to both console and Telnet connection attempts unless you use the console and telnet keywords to specify the authentication methods to use for each connection type individually.

Examples

This example shows how to use the TACACS+ server to determine if a user has privileged access permission:

Console> (enable) set authentication enable tacacs enable
tacacs enable authentication set to enable for console and telnet session.
Console> (enable)
 

This example shows how to use the local password to determine if the user has privileged access permission:

Console> (enable) set authentication enable local enable
local enable authentication set to enable for console and telnet session.
Console> (enable)
 

This example shows how to use the RADIUS server to determine if a user has privileged access permission for both console and telnet sessions.

Console> (enable) set authentication enable radius enable both 
radius enable authentication set to enable for console and telnet sessions.
Console> (enable) 
 

This example shows how to set the TACACS+ servers to be used first:

Console> (enable) set authentication enable tacacs enable primary
tacacs enable authentication set to enable for console and telnet session as primary authentication method.
Console> (enable) 

Related Commands

Syntax Description

Default

The default setting of this command is local authentication enabled and TACACS+ and RADIUS authentication disabled for console, Telnet, or both console and Telnet sessions.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

You can specify TACACS+ or RADIUS as the primary authentication method for login and enable access by entering the primary keyword. If you enter the primary keyword, the specified authentication method will be tried first. If you do not specify a primary authentication, authentication will be tried in the order in which each was enabled.

You can specify that the authentication method applies to console, Telnet, or both console and Telnet sessions, by entering the the console, telnet, or both keywords. If you do not specify console, telnet, or both, the authentication method applies to both console and Telnet sessions.

Examples

These examples show how to use the set authentication login command to authenticate access permission to the switch:

Console> (enable) set authentication login tacacs disable telnet
TACACS Login authentication set to disable for the telnet sessions.
Console> (enable) 
 
Console> (enable) set authentication login radius disable console
RADIUS Login authentication set to disable for the console sessions.
Console> (enable) 
 
Console> (enable) set authentication login local disable telnet
Local Login authentication set to disable for the telnet sessions.
Console> (enable) 

Related Commands

Syntax Description

Default

The defaults are as follows:

• Configuration register value is 0x10F, which causes the switch to boot from what is specified by the BOOT environment variable.

• Baud rate is set to 9600.

• ignore-config parameter is disabled.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

We recommend that you use only the rommon and system options to the set boot config-register boot command.

Each time you enter one of the set boot config-register commands, the system displays all current configuration-register information (the equivalent of entering the show boot command).

The baud rate specified in the configuration register is used by the ROM monitor only and is different from the baud rate specified by the set system baud command.

When you enable the ignore-config feature, the system software ignores the configuration information stored in NVRAM the next time the switch is restarted.

Caution Enabling the ignore-config parameter is the same as entering the clear config all command; that is, it clears the entire configuration stored in NVRAM the next time the switch is restarted.

Examples

This example shows how to specify booting from the ROM monitor:

Console> (enable) set boot config-register boot rommon
Configuration register is 0x100
ignore-config: disabled
console baud: 9600
boot: the ROM monitor
Console> (enable)
 

This example shows how to specify the default 16-bit configuration register value:

Console> (enable) set boot config-register 0x10f
Configuration register is 0x10f
break: disabled
ignore-config: disabled
console baud: 9600
boot: image specified by the boot system commands
Console> (enable)
 

This example shows how to change the ROM monitor baud rate to 4800:

Console> (enable) set boot config-register baud 4800
Configuration register is 0x90f
ignore-config: disabled
console baud: 4800
boot: image specified by the boot system commands
Console> (enable)
 

This example shows how to enable the ignore-config option:

Console> (enable) set boot config-register ignore-config enable
Configuration register is 0x94f
ignore-config: enabled
console baud: 4800
boot: image specified by the boot system commands
Console> (enable) 
 

This example shows how to specify rommon as the boot image to use on the next restart:

Console> (enable) set boot config-register boot rommon
Configuration register is 0x100
ignore-config: disabled
console baud: 9600
boot: the ROM monitor
Console> (enable) 

Related Commands

Syntax Description

Default

This command has no default setting.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

A colon (:) is required after the specified device.

You can enter several boot system commands to provide a fail-safe method for booting the switch. The system stores and executes the boot system commands in the order in which you enter them. Remember to clear the old entry when building a new image with a different filename in order to use the new image.

If the file does not exist (for example, if you entered the wrong filename), then the filename is appended to the bootstring, and a message displays, "Warning: File not found but still added in the bootstring."

If the file does exist, but is not a supervisor engine image, the file is not added to the bootstring, and a message displays, "Warning: file found but it is not a valid boot image."

Examples

This example shows how to append the filename cat6000-sup.5.3.1.CSX.bin on device bootflash to the BOOT environment variable:

Console> (enable) set boot system flash bootflash:cat6000-sup.s.bin prepend 
BOOT variable = bootflash:cat6000-sup.5.3.1.CSX.bin,1; bootflash:cat6000-sup.5.3.1.CSX.bin,1;
Console> (enable) 
 

This example shows how to prepend bootflash:c to the beginning of the boot string:

Console> (enable) set boot system flash bootflash:c prepend
Console> (enable)

Related Commands

Syntax Description

Default

The default system configuration has CDP enabled; the message interval is set to 60 seconds for every port; the default Time-To-Live value has the message interval globally set to 180 seconds.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

If you enter the global set cdp enable or disable command, CDP is globally configured. If CDP is globally disabled, CDP is automatically disabled on all interfaces, but the per-port enable (or disable) configuration is not changed. If CDP is globally enabled, whether CDP is running on an interface or not depends on its per-port configuration.

If you configure CDP on a per-port basis, the mod_num/port_num can be entered as a single module and port or a range of ports; for example, 2/1-12,3/5-12.

Examples

This example shows how to enable the CDP message display for port 1 on module 2:

Console> (enable) set cdp enable 2/1
CDP enabled on port 2/1.
Console> (enable)
 

This example shows how to disable the CDP message display for port 1 on module 2:

Console> (enable) set cdp disable 2/1
CDP disabled on port 2/1.
Console> (enable)
 

This example shows how to specify the CDP message interval value:

Console> (enable) set cdp interval 400
CDP interval set to 400 seconds.
Console> (enable)
 

This example shows how to specify the global Time-To-Live value:

Console> (enable) set cdp holdtime 200
CDP holdtime set to 200 seconds.
Console> (enable)

Related Command

Syntax Description

Default

The default is the port cost is updated automatically based on the current port costs.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guideline

When you do not enter the cost, the cost is updated based on the current port costs of the channeling ports. If you change the channel cost, member ports in the channel might be modified and saved to NVRAM. If this is the case, a message appears to list the ports whose port path costs were updated due to the channel cost modification.

Examples

This example shows how to set the channel 768 path cost to 23:

Console> (enable) set channel cost 768 23
Port(s) 1/1-2,7/3,7/5 port path cost are updated to 60.
Channel 768 cost is set to 23.
Warning:channel cost may not be applicable if channel is broken.
Console> (enable) 
 

This example shows how to set all channel path costs to 15:

Console> (enable) set channel cost all 15
Port(s) 4/1-4 port path cost are updated to 39.
Channel 768 cost is set to 15.
Warning:channel cost may not be applicable if channel is broken.

Related Command

Syntax Description

Default

The default is the VLAN cost is updated automatically based on the current port VLAN costs of the channeling ports.

Command Type

Switch command.

Command Mode

Privileged.

Usage Guidelines

When you do not enter the cost, the cost is updated based on the current port VLAN costs of the channeling ports.

You can configure only one channel at a time.

If you change the channel VLAN cost, member ports in the channel might be modified and saved to NVRAM. If this is the case, a message appears to list the ports whose port path costs were updated due to the channel cost modification.

Example

This example shows how to set the channel 768 path cost to 10:

Console> (enable) set channel vlancost 768 10
Port(s) 1/1-2 vlan cost are updated to 24.
Channel 768 vlancost is set to 10.
Console> (enable) 

Related Command