Administrator Guide
Enabling Mixed-mode Stacking
On the S4048-ON and S4048T-ON switches, mixed-mode stacking is disabled by default.
To enable mixed-mode stacking on the S4048T-ON or S4048–ON, perform the following steps:
1 In conguration mode, enter the mixed-mode-stacking enable command:
mixed-mode-stacking enable
The following message appears prompting you to conrm the conguration:
Enabling mixed-mode-stacking requires configuration save and reload to operate in compatible
with S4048-ON.
Do you want to reload? Proceed[confirm yes/no]:
2 Enter yes at this prompt and press the return key.
The following message appears prompting you to save the conguration:
System configuration has been modified. Save? [yes/no]:
3 Enter yes again and press the return key.
Important Points to Remember
• You can stack up to six systems.
• You cannot stack one system with other system types.
• You cannot enable stacking and virtual link trunking (VLT) simultaneously on the device. To convert a stacked unit to VLT, see
Reconguring Stacked Switches as VLT.
• Data ports are congured as stacking ports in predened groups of four 10G ports called stack-groups.
• When using the 40G ports, you can congure a single port as a stack port; each 40G port is a stack-group.
• All the ports in a stack-group are placed in stacking mode. Unused ports in that group cannot be used as data ports.
• Stacking on the device is accomplished through front-end user ports on the chassis.
• All stack units must have the same version of Dell Networking OS.
Stacking Installation Tasks
The following are the stacking installation tasks.
• Create a Stack
• Add Units to an Existing Stack
• Split a Stack
Create a Stack
Stacking is enabled on the device using the front end ports.
No conguration is allowed on front end ports used for stacking. Stacking can be made between 10G ports of two units or 40G ports of
two units. The stack links between the two units are grouped into a single LAG.
Stacking
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