User guide

500
pmp-0229 (Mar 2013)
Script Engine Using the Canopy Network Updater
Tool (CNUT)
o set group-level defaults for telnet or ftp password access and SNMP Community String
(defaults that can be overridden in an individual element when necessary).
If you have both FSK and OFDM modules in your network, then you must either ensure that they
all run Release 9.4.2 or that you select these two types of modules into separate element groups
because they are not running on the same software.
Network Layers
A typical network contains multiple layers of elements, each layer lying farther from the Point of
Presence. For example, SMs are behind an AP and thus, in this context, at a lower layer than the
AP. Correctly portraying these layers in Network Updater is essential so that Network Updater can
perform radio and AP cluster upgrades in an appropriate order.
IMPORTANT!
Correct layer information ensures that Network Updater does not command an
AP that is behind another AP/SM pair (such as in a remote AP installation) to
perform an upgrade at the same time as the SM that is feeding the AP. If this
occurs, then the remote AP loses network connection during the upgrade (when
the SM in front of the AP completes its upgrade and reboots).
Script Engine
Script Engine is the capability in Network Updater that executes any user-defined script against
any network element or element group. This capability is useful for network management,
especially for scripts that you repetitively execute across your network.
The Autodiscovery capability in Network Updater finds all of your network elements.
This comprehensive discovery
• ensures that, when you intend to execute a script against all elements, the script is indeed
executed against all elements.
• maintains master lists of elements (element groups) against which you selectively execute
scripts.
The following scripts are included with CNUT:
• AP Data Import from BAM
• AP Data Export to BAM
• Set Autoupdate Address on APs
• Set SNMP Accessibility
• Reset Unit