3com 6.0.4.6 User Manual

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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.