6-8
Stack Management for the 3500, 3500yl, 6200yl and 6600 Switches     
Configuring Stack Management
Options for Configuring a Commander and Candidates.  Depending on 
how Commander and Candidate switches are configured, Candidates can join 
a stack either automatically or by a Commander manually adding (“pulling”) 
them into the stack. In the default configuration, a Candidate joins only when 
manually pulled by a Commander. You can reconfigure a Commander to 
automatically pull in Candidates that are in the default stacking configura-
tion. You can also reconfigure a Candidate switch to either “push” itself into 
a particular Commander’s stack, convert the Candidate to a Commander (for 
a stack that does not already have a Commander), or to operate as a stand-
alone switch without stacking.  The following table shows your control 
options for adding Members to a stack.
Table 6-3. Stacking Configuration Guide
The easiest way to automatically create a stack is to:
1. Configure a switch as a Commander.
2. Configure IP addressing and a stack name on the Commander.
3. Set the Commander’s 
Auto Grab parameter to Yes.
4. Connect Candidate switches (in their factory default configuration) to 
the network.
This approach automatically creates a stack of up to 16 switches (including 
the Commander). However this replaces manual control with an automatic 
process that may bring switches into the stack that you did not intend to 
include. With the Commander’s Auto Grab parameter set to Yes, any switch 
conforming to all four of the following factors automatically becomes a stack 
Member:
Join Method
1
Commander 
(IP Addressing Required)
Candidate 
(IP Addressing Optional)
Auto Grab Auto Join Passwords
Automatically add Candidate to Stack   
(Causes the first 15 eligible, discovered 
switches in the subnet to automatically join 
a stack.)
Yes
Yes
 (default) No (default)
*
Manually add Candidate to Stack
(Prevent automatic joining of switches you 
don’t want in the stack)
No (default) Yes (default) Optional
*
Yes No
Optional
*
Yes
Yes
 (default) or No Configured
Prevent a switch from being a Candidate
N/A Disabled
Optional
*
The Commander’s Manager and Operator passwords propagate to the candidate when it joins the stack.