Usage Guidelines

The undebug platform remote-commands command is the same as the no debug platform remote-commands command.

When you enable debugging on a switch stack, it is enabled only on the active switch. To enable debugging on a stack member, you can start a session from the stack's active switch by using the session switch-number privileged EXEC command. Enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the active switch to enable debugging on a member switch without first starting a session.

Usage Guidelines

This command is supported only on stacking-capable switches.

The undebug platform stack-manager command is the same as the no debug platform stack-manager command.

When you enable debugging on a switch stack, it is enabled only on the active switch. To enable debugging on a stack member, you can start a session from the active switch by using the session switch-number EXEC command. Enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE EXEC command on the active switch to enable debugging on a member switch without first starting a session.

Usage Guidelines

If there is more than one switch in the switch stack, and you enter the reload slot stack-member-number command, you are not prompted to save the configuration.

Usage Guidelines

The commands that you use in the LINE command-to-execute string (such as debug , show , or clear ) apply to a specific stack member or to the switch stack.

Usage Guidelines

When you access the member, its member number is appended to the system prompt.

Use the session command from the active switch to access a member.

Use the session command with processor 1 from the active or a standalone switch to access the internal controller. A standalone device is always member 1.

Usage Guidelines

Use this command only when you are working directly with your technical support representative while troubleshooting a problem. Do not use this command unless your technical support representative asks you to do so.

Usage Guidelines

The show platform stack compatibility commands display feature incompatibility information between stack members in a mixed stack. Compatibility checks ensure that features that are supported across members of a stack using a forwarding ASIC with different capabilities will function effortlessly and error free.

Use this command only when you are working directly with your technical support representative while troubleshooting a problem. Do not use this command unless your technical support representative asks you to do so.

Usage Guidelines

The show platform stack compatibility commands display feature incompatibility information between stack members in a mixed stack. Compatibility checks ensure that features that are supported across members of a stack using a forwarding ASIC with different capabilities will function effortlessly and error free.

Use this command only when you are working directly with your technical support representative while troubleshooting a problem. Do not use this command unless your technical support representative asks you to do so.

Usage Guidelines

Use this command only when you are working directly with your technical support representative while troubleshooting a problem. Do not use this command unless your technical support representative asks you to do so.

Note	This command is supported only on stacking-capable switches.

The summary information about the switch stack shows these states:

• Waiting—A switch is booting up and waiting for communication from other switches in the stack. The switch has not determined whether or not it is active switch.

  Stack members not participating in election remain in the waiting state until the active switch is elected and ready.

• Initializing—A switch has determined whether it is the active switch. If not, the switch receives its system- and interface-level configuration from the active switch and loads it.

• Ready—The member has completed loading the system- and interface-level configurations and can forward traffic.

• Ver Mismatch—A switch in version mismatch mode. Version-mismatch mode is when a switch that joins the stack has a different stack protocol minor version number than the active switch.

A typical state transition for a stack member (including the active) booting up is Waiting > Initializing > Ready.

A typical state transition for a stack member to active switch after an election is Ready > Re-Init > Ready.

A typical state transition for a stack member in version mismatch (VM) mode is Waiting > Ver Mismatch.

Usage Guidelines

This command output displays these states:

• Waiting—A switch is booting up and waiting for communication from other switches in the stack. The switch has not determined whether or not it is an active stack.

  Stack members not participating in a active stack election remain in the waiting state until the active stack is elected and ready.

• Initializing—A switch has determined whether it has the active stack status. If it is not the active stack, it receives and loads the system- and interface-level configuration from the active stack.

• Ready—The member has completed loading the system- and interface-level configurations and can forward traffic.

• Ver Mismatch—A switch in version mismatch mode. Version-mismatch mode is when a switch joining the stack has a different stack protocol minor version number than the active stack.

• SDM Mismatch—A switch in Switch Database Management (SDM) mismatch mode. SDM mismatch is when a member does not support the SDM template running on the active stack.

• Provisioned—The state of a preconfigured switch before it becomes an active member of a switch stack, or the state of a stack member after it has left the switch stack. The MAC address and the priority number in the display are always 0 for the provisioned switch.

A typical state transition for a stack member (including the active) booting up is Waiting > Initializing > Ready.

A typical state transition for a stack member becoming the active stack after the election is Ready > Re-Init > Ready.

A typical state transition for a stack member in version mismatch (VM) mode is Waiting > Ver Mismatch.

You can use the show switch command to identify whether the provisioned switch exists in the switch stack. The show running-config and the show startup-config privileged EXEC commands do not provide this information.

The display also includes stack MAC-persistency wait-time if persistent MAC address is enabled.

Usage Guidelines

The MAC address of the switch stack is determined by the MAC address of the active switch. In the default state (persistent MAC address disabled), if a new switch becomes active switch, the stack MAC address changes to the MAC address of the new active switch.

When persistent MAC address is enabled, the stack MAC address does not change for a time period. During that time, if the previous active switch rejoins the stack as a stack member, the stack retains its MAC address for as long as that switch is in the stack. If the previous active switch does not rejoin the stack during the specified time period, the switch stack takes the MAC address of the new active switch as the stack MAC address.

You can set the time period to be from 0 to 60 minutes.

• If you enter the command with no value, the default delay is 4 minutes.

• If you enter 0 , the stack continues to use the current stack MAC address until you enter the no stack-mac persistent timer command.

• If you enter a time delay of 1 to 60 minutes, the stack MAC address of the previous active switch is used until the configured time period expires or until you enter the no stack-mac persistent timer command.

Note	When you enter the stack-mac persistent timer command with or without keywords, a message appears warning that traffic might be lost if the old active switch MAC address appears elsewhere in the network domain. You should use this feature cautiously.

If you enter the no stack-mac persistent timer command after a switchover, before the time expires, the switch stack moves to the current stack's active switch MAC address.

If the whole stack reloads, when it comes back up, the MAC address of the active switch is the stack MAC address.

Usage Guidelines

A stack is in the full-ring state when all members are connected through the stack ports and are in the ready state.

The stack is in the partial-ring state when the following occurs:

• All members are connected through their stack ports but some are not in the ready state.
• Some members are not connected through the stack ports.

Note	Be careful when using the switch stack-member-number stack port port-number disable command. When you disable the stack port, the stack operates at half bandwidth.

If you enter the switch stack-member-number stack port port-number disable privileged EXEC command and the stack is in the full-ring state, you can disable only one stack port. This message appears:

Enabling/disabling a stack port may cause undesired stack changes. Continue?[confirm] 

If you enter the switch stack-member-number stack port port-number disable privileged EXEC command and the stack is in the partial-ring state, you cannot disable the port. This message appears:

Disabling stack port not allowed with current stack configuration.

Usage Guidelines

The new priority value is a factor when a new active switch is elected. When you change the priority value, the active switch is not changed immediately.

Usage Guidelines

For type , enter the model number of a supported switch that is listed in the command-line help strings.

To avoid receiving an error message, you must remove the specified switch from the switch stack before using the no form of this command to delete a provisioned configuration.

To change the switch type, you must also remove the specified switch from the switch stack. You can change the stack member number of a provisioned switch that is physically present in the switch stack if you do not also change the switch type.

If the switch type of the provisioned switch does not match the switch type in the provisioned configuration on the stack, the switch stack applies the default configuration to the provisioned switch and adds it to the stack. The switch stack displays a message when it applies the default configuration.

Provisioned information appears in the running configuration of the switch stack. When you enter the copy running-config startup-config privileged EXEC command, the provisioned configuration is saved in the startup configuration file of the switch stack.

Caution

When you use the switch provision command, memory is allocated for the provisioned configuration. When a new switch type is configured, the previously allocated memory is not fully released. Therefore, do not use this command more than approximately 200 times, or the switch will run out of memory and unexpected behavior will result.

Usage Guidelines

If another stack member is already using the member number that you just specified, the active switch assigns the lowest available number when you reload the stack member.

Note	If you change the number of a stack member, and no configuration is associated with the new stack member number, that stack member loses its current configuration and resets to its default configuration.

Do not use the switch current-stack-member-number renumber new-stack-member-number command on a provisioned switch. If you do, the command is rejected.

Use the reload slot current stack member number privileged EXEC command to reload the stack member and to apply this configuration change.

Usage Guidelines

By default, Catalyst 2960-X switches operate at a port speed of 20 Gbps while 2960-S switches have a maximum port speed of 10 Gbps. In a mixed stack of Catalyst 2960-X and Catalyst 2960-S switches, the stack must operate at the port speed of the Catalyst 2960-S switch; otherwise, the switches will not stack.

To set the port speed of the stack to 10 Gbps, use the switch stack port-speed 10 global configuration command on a Catalyst 2960-X stack member before you add a Catalyst 2960-S switch to the stack, and then reload the stack.