Reference Guide

The range is from 0 to 15.
6. Connect the units using stacking cables.
NOTE: The S4820T does not require special stacking cables. The cables used to connect the data ports are
sufficient.
7. Reload the stack one unit at a time.
EXEC Privilege mode
show system brief
Start with the management unit, then the standby, then each of the members in order of their assigned stack
number (or the position in the stack you want each unit to take).
Allow each unit to completely boot, and verify that the stack manager detects the unit, then power the next unit.
Figure 120. Creating a New S4820T Stack
In the following example, stack unit is the master management unit, stack unit 2is the standby unit. The cables are
connected to each unit.
Configure the stack groups on the units in the following order:
• Configure the first stack group on unit 1: stack-unit 1 stack-group 13
• Configure the stack groups on unit 2: stack-unit 2 stack-group 14 and stack-unit 2 stack-
group 15
• Configure the stack groups on unit 3: stack-unit 3 stack-group 12 and stack-unit 3 stack-
group 13
• Configure the stack groups on unit 4: stack-unit 4 stack-group 13 and stack-unit 4 stack-
group 14
• Configure the final stack-group on unit 1 to complete the stack: stack-unit 1 stack-group 12
When the stack-group configuration is complete, the system prints a syslog for reload.
Example of a Syslog
FTOS#configure
FTOS(conf)#stack-unit 4 stack-group 13
FTOS(conf)#02:39:12: %STKUNIT4-M:CP %IFMGR-6-STACK_PORTS_ADDED: Ports Fo 4/52
have been configured as
stacking ports. Please save and reload for config to take effect
FTOS(conf)#stack-unit 4 stack-group 14
FTOS(conf)#02:39:15: %STKUNIT4-M:CP %IFMGR-6-STACK_PORTS_ADDED: Ports Fo 4/56
have been configured as
stacking ports. Please save and reload for config to take effect
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