Preconfiguration
This section explains how to configure units. Units do not necessarily have to be preconfigured in order
to be added to the stack.
General information: All configurations on the stack, except unit numbers, are stored on the
management unit. This means that a stack unit may be replaced with another device of the same type
without having to reconfigure the switch. Unit numbers are stored independently on each switch, so
that after power cycling the stack, the units always come back with the same unit numbers. The unit
type associated with each unit number may be learned by the management unit automatically as the
units are connected or preconfigured by the administrator.
1 Issue the command
member unit-id switchindex
to preconfigure a unit from the config
stack mode. Supported unit types are shown by the
show supported switchtype
command.
•
To display supported switches, use Privileged EXEC mode. Enter the command
show
supported switchtype SID
.
•
To add a new member (see
Adding a Unit to an Operating Stack
on page 29), use Config stack
mode. Enter the command
member unit-id
.
2 Next, configure the unit you just defined with configuration commands, just as if the unit were
physically present.
3 Ports for the preconfigured unit come up in "detached" state and can be seen with the
show port
all
command in Privileged EXEC mode. The detached ports may now be configured for VLAN
membership and any other port-specific configuration.
4 After a unit type is preconfigured for a specific unit number, attaching a unit with a different unit
type for this unit number causes the switch to report an error. The Privileged Exec mode
show
switch
command indicates "config mismatch" for the new unit and the ports on that unit do not
come up. To resolve this situation, you may change the unit number of the mismatched unit, using
the procedure in
on page 30, or delete the preconfigured unit type
using the command
no member unit-id
from the config stack mode.
Getting Started with Stacking
ExtremeSwitching 200 Series: Administration Guide
32
