Cisco CATALYST 2960 - Stack MAC Address; The MAC address of the master determines the stack MAC address.; When the stack initializes, the MAC address of the master determines the bridge ID that identifies the stack in the network.; If the master changes, the MAC address of the new master determines the new bridge ID. However, when the persistent MAC address feature is enabled, there is an approximate 4-minute delay before the stack MAC address changes. During this time period, if the previous master rejoins the stack, the stack continues to use its MAC address as the stack MAC address, even if the switch is now a member and not a master. If the previous master does not rejoin the stack during this period, the stack takes the MAC address of the new stack master as the stack MAC address. See the “Enabling Persistent MAC Address” section on page 7-17 for more information.

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Catalyst 2960 Switch Command Reference
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Chapter 2 Catalyst 2960 Switch Cisco IOS Commands
ip ssh
ip ssh
Use the ip ssh global configuration command to configure the switch to run Secure Shell (SSH)
Version 1 or SSH Version 2. This command is available only when your switch is running the
cryptographic (encrypted) software image. Use the no form of this command to return to the default
setting.
ip ssh version [1 | 2]
no ip ssh version [1 | 2]
Syntax Description
Defaults The default version is the latest SSH version supported by the SSH client.
Command Modes Global configuration
Command History
Usage Guidelines If you do not enter this command or if you do not specify a keyword, the SSH server selects the latest
SSH version supported by the SSH client. For example, if the SSH client supports SSHv1 and SSHv2,
the SSH server selects SSHv2.
The switch supports an SSHv1 or an SSHv2 server. It also supports an SSHv1 client. For more
information about the SSH server and the SSH client, see the software configuration guide for this
release.
A Rivest, Shamir, and Adelman (RSA) key pair generated by an SSHv1 server can be used by an SSHv2
server and the reverse.
Examples This example shows how to configure the switch to run SSH Version 2:
Switch(config)# ip ssh version 2
You can verify your settings by entering the show ip ssh or show ssh privileged EXEC command.
1 (Optional) Configure the switch to run SSH Version 1 (SSHv1).
2 (Optional) Configure the switch to run SSH Version 2 (SSHv1).
Release Modification
12.2(25)FX This command was introduced.