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Points to Note When Using the WXR100, WX1200, WX4400, or WX2200 3
backup, refer to the section titled “Backing Up and
Restoring the System” on page 613 of the MSS con-
figuration guide. For details on the procedure for
3WXM, refer to the section titled “Upgrading
3WXM” of the 3WXM Reference Manual.
2 Upgrade 3WXM before upgrading the wireless switch
(MSS). Newer versions of 3WXM are designed to
handle older versions of MSS and will change their
configuration model for switches that are running
older versions of MSS. For example, 3WXM 6.0 can
handle switches running 4.0.x, 4.1.x, 4.2.x, 5.0.x, or
6.0.x. However, older versions of 3WXM are not
designed to manage newer versions of MSS. For
example, 3WXM 4.2 is not designed to manage a
wireless switch running 6.0.
3 After completing a successful upgrade of 3WXM,
upgrade the wireless switch to the same major soft-
ware version. 3Com recommends always running the
same major version of 3WXM and MSS in a produc-
tion environment. For example, 6.0.x.
4 If the CLI of the wireless switch indicates unsaved
configuration changes after completing the upgrade
(indicated with a * in front of the system name on the
CLI), save the configuration using the 'save configura-
tion' command.
5 When upgrading several switches, upgrade one at a
time. After the upgrade has been completed on each
switch, verify that it is operating properly before pro-
ceeding on to the next switch.
6 After the MSS upgrade has been completed, refresh
the switch status in 3WXM. If Network changes are
detected, they should be reviewed carefully before
deciding whether to accept them into 3WXM. Accept
all Network changes before attempting to deploy any
Local changes.
7 After Network changes have been accepted and the
switch status has been refreshed, carefully examine
any remaining Local changes in 3WXM before decid-
ing whether to deploy them to the wireless switch.
8 If you need to downgrade to an older version of MSS,
the system will provide the option to use an automat-
ically archived configuration file that was created
when the system was upgraded. To apply a configura-
tion that is compatible with the older version of MSS,
you may choose to apply this archived configuration
file.
Best Practice When Powering Down a Switch
If a WXR100 or WX1200 is connected to Power Sourc-
ing Equipment (PSE), it is possible for the switch to
remain powered on even when the power cord is
unplugged. PSE can be a dedicated PoE injector or even
another networking switch such as the WX that is capa-
ble of supplying PoE. To ensure that the switch is pow-
ered off, unplug the power cord, then unplug all
Ethernet cables that are connected to other PoE devices.
System Configuration Best Practices
3Com strongly recommends that you use 3Com
Wireless Switch Manager (3WXM) for archiving and
version control of network-wide wireless LAN switch
configurations. 3Com also recommends that you
archive the CLI-based configuration files of individual
WX switches by copying the configurations to a
server.