Alcatel OS6400-48 Hardware User's Manual page 126

Reloading Switches
If there are only two switches in the stack, the switch that was reloaded (the former secondary) resumes
the secondary role when it comes back up.
Primary - Slot 1
Secondary - Slot 2
-> reload secondary
Primary - Slot 1
Booting...
Primary - Slot 1
Secondary - Slot 2
Reloading the Secondary Management Module In a Stack of Two
page 6-28
Managing OmniSwitch 6400 Series Stacks
1
In this stack of two OmniSwitch 6400 Series switches, the slot 1
switch is the primary management module. The slot 2 switch is
the secondary.
2
The user reloads the stack's secondary management module by
issuing the reload secondary command. Any data flow on the
secondary switch's Ethernet is interrupted.
3 As the secondary switch reboots, the primary management mod-
ule continues to operate without interruption. Meanwhile the
stack has no interim secondary management module as the switch
reboots.
4 When the rebooted switch comes back up, it assumes the secondary
management role within the stack.
OmniSwitch 6400 Series Hardware Users Guide July 2010