Alcatel OS6855-24 User Guide - Page 176
Reloading the Primary Management Module In a Stack of Two, If there are only two switches in the stack
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Reloading Switches Managing OmniSwitch 6855 Series Stacks If there are only two switches in the stack, the switch that was reloaded (the former primary) assumes the secondary role when it comes back up. Primary - Slot 1 Secondary - Slot 2 1 In this stack of two OmniSwitches, the slot 1 switch is the primary management module. The slot 2 switch is the secondary. -> reload primary Booting... Primary - Slot 2 2 The user reloads the stack's primary management module by issuing the reload primary command. Any data flow on the primary switch's Ethernet is interrupted. 3 The secondary switch automatically takes over the primary role. Ethernet traffic on slot 2 remains unaffected. Meanwhile the stack has no interim secondary management module as the switch reboots. Secondary - Slot 1 Primary - Slot 2 4 When the rebooted switch comes back up, it assumes the secondary management role within the stack. Reloading the Primary Management Module In a Stack of Two page 7-28 OmniSwitch 6855 Series Hardware Users Guide September 2011