Users Guide

Usage
Information
● To form a mixed-mode stack, use only the 40G ports between the range 49 to 54.
● You cannot form a mixed-mode stack using the 10G ports. Because, the 10G ports on the S4048T are
copper ports; where as, the 10G ports on the S4048-ON are SFP ports.
● It is mandatory to enable mixed-mode stacking on the S4048-ON and S4048T-ON switches before
joining a mixed-mode stack.
● Stack election is based on the priority or the MAC address of the stack units as in homogenous
stacking. The stack-unit with the highest priority or MAC address is chosen as the master.
● TDR is a feature that is supported only on the S4048T-ON but not on the S4048-ON. If TDR is
configured on the S4048T-ON, then mixed-mode stacking can be enabled only on the S4048T-ON
switches.
● The hardware watchdog command is enabled only when the S4048T-ON act as master. As a single
image runs on both the S4048T-ON as well as the S4048–ON, the hardware watchdog command
is retained on the S4048-ON also. However, this command remains ineffective and does not perform
any function when the S4048-ON acts as master.
● When the S4048T-ON is the master and mixed-mode stacking is disabled, the S4048-ON remains in
the card problem state due to type mismatch.
● When the S4048-ON is the master and mixed-mode stacking is disabled, the S4048T-ON remains in
the card problem state due to type mismatch.
After you issue this command. the following message appears prompting you to confirm the configuration:
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]:
To make the S4048T-ON work like the S4048–ON, enter yes at this prompt and press the return key.
The following message appears prompting you to save the configuration:
System configuration has been modified. Save? [yes/no]:
Enter yes again and press the return key.
Example
(S4048T-ON)
Dell#conf t
Dell(conf)#mixed-mode-stacking enable
Enabling Mixed-mode stacking requires config save and reload to operate
in Compatible to S4048.
Do you want to reload? Proceed[confirm yes/no]:yes
System configuration has been modified. Save? [yes/no]: yes
!
Apr 10 19:16:38: %STKUNIT2-M:CP %FILEMGR-5-FILESAVED: Copied running-
config to startup-config in flash by default
Apr 10 19:16:39: %STKUNIT2-M:CP %CHMGR-5-RELOAD: User request to reload
the chassis
syncing disks... 4 1 done
unmounting file systems...
unmounting /f10/flash (/dev/wd0e)...
unmounting /f10/ConfD/db (mfs:479)...
unmounting /usr/pkg (/dev/wd0i)...
unmounting /boot (/dev/wd0b)...
unmounting /usr (mfs:29)...
unmounting /force10 (mfs:24)...
unmounting /lib (mfs:21)...
unmounting /f10 (mfs:18)...
unmounting /tmp (mfs:9)...
unmounting /kern (kernfs)...
unmounting / (/dev/md0a)... done
rebooting...
Dell#conf t
Dell(conf)#no mixed-mode-stacking enable
Disabling Mixed-mode stacking requires a config save and reload to
operate back as S4048T.
Stacking
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