D-Link DGS-3100 User Manual page 37

DGS-3100 Series Gigabit Stackable Managed Switch User Manual
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A running stacking member group is added to an existing stack, assuming each one of the stack groups has an
elected Stack Master. The total of existing stacking members and new stacking members exceeds the maximum
allowed number of stacking members in a stack, which is 6 stacking members:
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Master Detection and Master Election processes determine the master out of one of two combined stacking
groups.
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When switches are added to a running stack, the Unit ID Allocation and Duplicate ID Conflict Resolution
process detects an error if too many switches are present in the stack, and no changes are to stacking members
that originally belonged to the group managed by the newly elected master. The original switches retain their
ID assignments and configurations. The stacking members that originally belonged to the group managed by
the Stack Master that lost the Master Election process are shut down.
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