Service Manual

For a parent stack that is split into two child stacks, A and B, each with multiple units:
• If one of the new stacks receives the master and the standby management units, it is unaected by the split.
• If one of the new stacks receives only the master unit, that unit remains the stack manager, and Dell Networking OS elects a
new standby management unit.
• If one of the new stacks receives only the standby unit, it becomes the master unit of the new stack, and Dell Networking OS
elects a new standby unit.
• If one of the new stacks receives neither the master nor the standby management unit, the stack is reset so that a new election
can take place.
S-Series Stacking Conguration Tasks
The following are conguration tasks for the S-Series.
• Assigning Unit Numbers to Units in an S-Series Stack
• Creating a Virtual Stack Unit on an S-Series Stack
• Displaying Information about an S-Series Stack
• Inuencing Management Unit Selection on an S-Series Stack
• Managing Redundancy on an S-Series Stack
• Resetting a Unit on an S-Series Stack
• Recover from Stack Link Flaps
Assigning Unit Numbers to Units in an S-Series Stack
Each unit in the stack has a stack number that is either assigned by you or Dell Networking OS.
units. Units are numbered from 1 to 6. Stack numbers are stored in NVRAM and are preserved upon reload.
• Assign a stack-number to a unit.
EXEC Privilege mode
stack-unit renumber
Renumbering the stack manager triggers the whole stack to reload, as shown in the message below. When the stack comes back
online, the master unit remains the management unit.
Renumbering master unit will reload the stack.
WARNING: Interface configuration for current unit will be lost!
Proceed to renumber [confirm yes/no]: yes
Creating a Virtual Stack Unit on an S-Series Stack
Use virtual stack units to congure ports on the stack before adding a new unit.
• Create a virtual stack unit.
CONFIGURATION mode
stack-unit provision
Displaying Information about an S-Series Stack
To display information about the S-Series stack, use the following command.
• Display for stack-identity, status, and hardware information on every unit in a stack.
EXEC Privilege mode
show system
Refer to the following example.
738
Stacking