Configuring Switches in a Stack
3-14 Hardware Installation
3. Themanagementelectionprocessusesthefollowingprecedencetoassigna
managementswitch:
a. Previouslyassigned/electedmanagementswitch
b. Managementassignedpriority(values1–15)
c. Hardwarepreferencelevel
d. HighestMACAddress
Recommended Procedures for New and Existing Stacks

Installing a New Stackable System of Up to Eight Switches

Usethefollowingproceduretoinstallanewstackofuptoeightswitchesoutofthebox.
Beforeapplyingpower,makeallphysicalconnectionswiththestackcablesasdescribed
inConnectingStackingCablesonpage 311.
1. Onceallofthestackcableshavebeenconnected,individuallypoweroneachswitch
fromtoptobottom(connectingpowertoaswitchisdescribedinConnectingACand
RPSSYSPoweronpage 316).
Iftheswitchesarepoweredonalmostsimultaneously,thesystemwillautomatically
selectthefirstonethatpowersupastheMasterswitchandtheothersasMember
switches.TheswitchesareassignedunitIDsintheorderthattheybecomefully
operational.
YoucancontroltheunitIDassignmentaccordingtothephysicalpositioninastack.
Whenyoupowerupeachswitchandallowittobecomefullyoperationalbefore
applyingpowertothenextswitch,thefirstonebecomestheManagerandallthenext
switcheswilljointhatstack(regardlessofPriority,FirmwareRevision,orMAC
Address).TheswitchesareassignedunitIDsintheorderthatyoupoweroneach
switch.
2. (Optional)Ifdesired,changethemanagementswitchusingthesetswitch
movemanagementcommandasdescribedintheSecureStackA2ConfigurationGuide.

Important

The following procedures assume that all switches have a clean configuration from manufacturing.
When adding a new switch to an already running stack, it is also assumed that the new switch is
using the same firmware image version as other switches in the stack.
Note: Once switch IDs are assigned, they are persistent and will be retained during a
power cycle to any or all of the switches.