Alcatel OS6400-24 User Guide - Page 99
Redundant Management Module Failover Two Switches, Managing OmniSwitch 6400 Series Stacks
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Managing OmniSwitch 6400 Series Stacks Roles Within the Stack Primary Secondary 1 A stack of two OmniSwitch 6400 Series switches is operating normally. The stack consists of a primary module and a secondary module. (The software on both elements in the stack is synchronized.) ! Offline Secondary Offline Primary 2 The primary management module fails or is taken offline (e.g., powered off or rebooted by the user). 3 The switch operating as the secondary management module immediately takes over the primary role. It is at this point essentially operating as a stand-alone switch. Secondary Primary 4 If the switch that previously failed or was taken offline comes back online, it will assume the secondary role in the stack. Redundant Management Module Failover (Two Switches) OmniSwitch 6400 Series Hardware Users Guide April 2011 page 5-5
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