Task 3: Upgrading the software
version and using CNUT
Chapter 2: Configuration and alignment
2-38
pmp-0050 (May 2012)
CNUT functions
The Canopy Network Updater Tool
automatically discovers all network elements
o
executes a UDP command that initiates and terminates the Autoupdate mode within APs. This
command is both secure and convenient:
o
For security, the AP accepts this command from only the IP address that you specify in the
Configuration page of the AP.
o
For convenience, Network Updater automatically sets this Configuration parameter in the APs to the
IP address of the Network Updater server when the server performs any of the update commands.
allows you to choose among updating
o
your entire network.
o
only elements that you select.
o
only network branches that you select.
provides a Script Engine that you can use with any script that
o
you define.
o
Motorola supplies.
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 telnet or 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, with each layer 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.
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.
Summary of Contents for PMP 450
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