In the recent update to the Extreme website, the page designers neglected to include links to the Hardware Installation Guide
documentation for ExtremeSwitching and Summit switches. We're aware of the problem and hope to it fixed soon.
In the meantime, you can access the Hardware Installation Guides
by direct link:
for switch models that run on EXOS 21 and above
for switch models that run on EXOS 16 and previous
Note: The general link for documentation is the same as before: https://www.extremenetworks.com/support/documentation/