Adding to a stack, or moving switches between stacks

You can add switches to a stack by adding discovered Candidates or by moving switches from other stacks that may exist in the same subnet.


[NOTE: ]

NOTE: You cannot add a Candidate that the Commander has not discovered.


In its default configuration, the Commander's Auto-Grab parameter is set to No to give you manual control over which switches join the stack and when they join. This prevents the Commander from automatically trying to add every Candidate it finds that has Auto Join set to Yes (the default for the Candidate).

To allow eligible candidates to automatically join the stack when the Commander discovers it, configure Auto Grab in the Commander to Yes. When you do so, any Candidate discovered with Auto Join set to Yes (the default) and no Manager password, will join the stack, up to the limit of 15 Members.

To manually add a candidate, use:

  • A switch number (SN) to assign to the new member. Member SNs range from show stack view. You can use any SN not included in the listing. (SNs are viewable only on a Commander switch.)

  • The MAC address of the discovered Candidate you are adding to the stack. To see this data, use the show stack candidates listing.

Determining available switch numbers (SNs)

To display all discovered Candidates with their MAC addresses, execute the show stack candidates command from the Commander's CLI. For example, to list the discovered candidates for the above Commander:

Knowing the available switch numbers (SNs) and Candidate MAC addresses, proceed to manually assign a Candidate to be a Member of the stack:

Syntax:

stack member switch-number mac-address mac-addr [ password password-str]

For example, if the switch in the above listing did not have a Manager password and you want to make it a stack Member with an SN of 2, execute the following command:

HP Switch(config)#: stack member 2 mac-address 0060b0-dfla00

The show stack view command then lists the Member added by the above command:

Viewing the stack after adding a new member