Alcatel OS6400-48 Hardware User Guide - Page 132

Takeover Behavior In a Stack of Two, If there are only two switches in the stack

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Changing the Secondary Module to Primary Managing OmniSwitch 6400 Series Stacks If there are only two switches in the stack, the former primary switch resumes the secondary role when it comes back up following the takeover. Primary - Slot 1 Secondary - Slot 2 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. -> takeover Booting... Primary - Slot 2 2 A takeover is initiated by the user; the primary management module is automatically reloaded. Any data flow on the primary switch's Ethernet is interrupted. 3 The secondary switch 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 former primary switch comes back up, it assumes the secondary management role within the stack. Takeover Behavior In a Stack of Two page 6-34 OmniSwitch 6400 Series Hardware Users Guide July 2010

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Changing the Secondary Module to Primary
Managing OmniSwitch 6400 Series Stacks
page 6-34
OmniSwitch 6400 Series Hardware Users Guide
July 2010
If there are only two switches in the stack, the former primary switch resumes the secondary role when it
comes back up following the takeover.
Takeover Behavior In a Stack of Two
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.
A takeover is initiated by the user; the primary management
module is automatically reloaded. Any data flow on the primary
switch’s Ethernet is interrupted.
The secondary switch 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.
1
2
3
-> takeover
Primary - Slot 1
Secondary - Slot 2
When the former primary switch comes back up, it assumes the
secondary management role within the stack.
4
Booting...
Primary - Slot 2
Secondary - Slot 1
Primary - Slot 2