User's Manual

Table Of Contents
PMP 450 Operations Guide
Script Engine
pmp-0049 (September 2012)
3-57
Network Element Groups
With the Canopy Network Updater Tool, you can identify element groups composed of network
elements that you select. Identifying these element groups
organizes the display of elements (for example, by region or by AP cluster).
allows you to
o perform an operation on all elements in the group simultaneously.
o set group-level defaults for FTP password access and SNMP Community String (defaults that
can be overridden in an individual element when necessary).
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:
Set Autoupdate Address on APs
Set SNMP Accessibility
Reset Unit