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WGSW-1602 16-Port Fast Ethernet Switch with 2 GbE slotsChapter 5 Software Upgrade Procedure
The application software is field upgradable. The upgrade procedure and the required equipment is described in the following section.
Note that once the system is up, it is controlled by an executing application image residing in the flash memory. No software upgrade is possible during this mode. The upgrade can only be done when the system is resetting. To initiate this sequence, the user must set the boot mode configuration parameter to Boot from Net during normal operation, and then perform a reset. When the Boot-from-NET option is set, Bootstrap can start the system with an image residing on a TFTP server on the network. In such a setup, a console terminal is connected to the console port, and a TFTP server in the network is connected to one of the Ethernet ports. A network can be as simple as an Ethernet Hub.
The upgrade procedure is as follow:
Note that the previous image in the flash will not be replaced by the new image using this option. The image in the flash will be over-written if Boot from Net and Saved option is selected.
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