This is a Counter64 value representing the timeout associated with this authenticated user's session on the Stormshield firewall, though the MIB source itself provides only the terse label "Timeout" without further elaboration on its exact units or counting behavior. Administrators would likely use it to gauge how much longer, or how much time has elapsed, before this user's authenticated session expires and requires re-authentication. Given the sparse documentation, an admin encountering an unusually high or low value here would need to consult Stormshield's own product documentation to interpret its exact meaning, but could still use relative changes in this value to infer a session nearing expiration.