System information

Stacking PowerConnect 10G Switches: M8024-k, 8024, 8024F
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5. Continue this process to identify all Unit numbers in the switch.
Note: If the show logging command is full, it can be saved off to another location then cleared for
easier reading. Also if the log is not needed, it can be cleared as well prior to creating the link events.
6. To now identify which unit is the stack Master and which ones are members, go to System >
Stack Management > Stack Summary.
Note that in this example Unit 1 is the Master (Mgmt Sw) and Unit 3 is the Standby (Oper Stby)ready to
take over as Master in the event the Master fails.
Note: If the stack consists of M8024-k modular switches in an M1000e chassis, the CMC will also show
the fabric (A1, A2, B1, B2, C1, or C2) in which the Master is located.
Removing the Physical Switch Unit from the Stack
Before removing a physical unit from a stack, the administrator will need to prepare ports on the other
stack member units to receive the cables and traffic that will be redirected to them from the member
unit being removed. Consider all LAGs, VLANs, STP, ACLs, security, etc., that will need to be
configured on the new ports in order to accept cables, establish links, and begin to forward traffic. It
is highly recommended to not continue until these things have been considered and proper
preparations are made.
 Do not remove or re-route stacking cables until prompted in the last step below.
 Do not remove or re-route stacking cables until prompted in the last step below. Disconnect all
other links on the stack member to be removed and re-route the traffic that was going through
this unit so it now goes through the ports that were prepared on the remaining stack unit
members.
 Only after re-routing the traffic through the remaining stack units, remove both stacking cables
from the switch to be removed. Discard one of these two cables and connect the other to
complete the stack loop as shown in Figure 17 and Figure 18.