Summit WM3000 Series Controller System Reference Guide 39
Upgrading the Controller Image
The controller ships with a factory installed firmware image with the full feature functionality described
in this reference guide. However, Extreme Networks periodically releases controller firmware that
includes enhancements or resolutions to known issues. Verify your current controller firmware version
with the latest version available from the Extreme Networks Web site before determining if your system
requires an upgrade.
Auto Installation
The controller auto install function can be configured manually or using a DHCP server. When
configuring auto installation using DHCP, the server requires the definition of a vendor class and four
sub-options under option 43 namely:
● Option 186 - defines the tftp/ftp server and ftp username, password information
● Option 187 - defines the firmware path and file name
● Option 188 - defines the config path and file name
● Option 190 - defines the cluster config path and file name.
The individual features (config, cluster-config and image) can be enabled separately using the CLI,
SNMP or Web UI. If a feature is disabled, it is skipped when auto install is triggered.
For manual configuration (where the URLs for the configuration and image files are not supplied by
DHCP), the URLs can be specified using the CLI, SNMP or Applet. Use the CLI to define the expected
firmware image version. If the image version is not specified, the controller will derive it from the
header of the firmware image file.
Configuration files are tracked by their MD5 checksum. Configuration files are tracked by their
contents. If a file is renamed its contents remain the same and the file will not be reloaded.
The requested image file version (if any) is checked against the current version before any attempt is
made to load it. If the requested version is the same as the running version, no action is taken. If the
image file version (embedded in the file header) does not match the expected version, no further action
is taken. If the version has not been specified, the image file header is compared to the local version. If
they are the same, no action is taken.
Once the system has been operating for ten minutes, Auto Install is disabled, though it may still be reconfigured.
This is to prevent the system from attempting to re-install each time a DHCP lease is renewed.
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