The ExtremeXOS core image (.xos) file contains the executable code that runs on the switch and is preinstalled at the factory. An ExtremeXOS module image (.xmod) supplements the core image. Note that the version number of the core image and the module must match. As new versions of this image are released, you should upgrade both the software and modular packages running on your system.
On BlackDiamond 8800 series switches with two MSMs installed, you can upgrade the images without taking the switch out of service. Known as a hitless upgrade, this method of downloading and installing a new image minimizes network interruption, reduces the amount of traffic lost, and maintains switch operation. For more information, see Understanding Hitless Upgrade--Modular Switches Only. For information about installing a new firmware image on a BlackDiamond 8800 series switch, see Upgrading the Firmware.
To find and install image files:
If you do not have an eSupport account, you can request one with the Request Web Login link.
Note
You can also download release notes from the eSupport site. The ExtremeXOS Release Notes will always have the most current download and install instructions.Note
Due to additional functionality and new platforms added in ExtremeXOS 15.6.1, the summitX .xos image is too large to be installed on Summit X480 switches. There is a new .xos image, summitX480-15.6.xx.yy.xos, which is to be used for Summit X480 and stacks that include one or more Summit X480 switches. This image unbundles operational diagnostics to provide an image that can be installed to Summit X480. There is a new xmod, summitX480-15.6.xx.yy-diagnostics.xmod, which can be used to update the operational diagnostics image to X480 and stacks that include X480 switches.
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