Assembling a Switch Stack
29
Auto Stack Number Assignment
During the stack formation process, a unique stack-unit number is assigned if
the same number is assigned to more than one switch. After assignment is
complete, each switch saves its stack-unit number. To view stack-unit
numbers, enter the
show system
command.
Dell Networking OS Version Checking
Following the stack-unit number assignment, the Master Switch performs a
consistency check to make sure that all switches in the stack are running the
same Dell Networking OS version.
If the Master Switch determines that all switches are not running the same
Dell Networking OS version, the ports on switches with the incorrect version
are disabled.
To download the required Dell Networking OS image from the Master Switch
and reload a member switch so that it joins the stack, enter the following
command in EXEC Privilege mode:
Dell# upgrade system stack-unit
unit-number
partition
Where
stack-unit
unit-number
identifies the switch whose Dell Networking
OS version needs to be upgraded;
partition
identifies the partition on the
Master Switch from which the Dell Networking OS image boots up. For
example:
Dell# upgrade system stack-unit 3 a:
To display the boot partition used on the Master Switch, enter the
show
version
command.
To ensure that a stack unit boots from partition a:, enter the commands:
Dell# configure
Dell(conf)# boot system stack-uni
t
unit-number
primary system
a:
Dell(conf)# end
Dell# write memory
Dell# power-cycle stack-unit
unit-number
NOTE:
When you stack an MXL 10/40GbE Switch, booting is supported only from
flash memory; it is not supported over the network via an IP address.
NOTE:
To upgrade all switches in a stack with the same Dell Networking OS
version in a specified partition, enter the following command in EXEC Privilege
mode:
Dell# upgrade system {ftp: | tftp:} partition
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