11-25-2025 01:21 AM
Hi @T.XuanDung ,
When you restart the device-server process (debug software restart process device-server) on a PAN device, there’s no fixed “hard” time for how long it will take — it depends on the device model, current load, active sessions, HA state, etc. But some guidance and expected behaviour are documented:
According to this knowledgebase article about the “devsrvr” (device-server) process, when you restart it there will be temporary impact to certain management-plane functions (config push to dataplane, URL filtering requests, etc). The article doesn’t quote a specific duration, but implies it’s “quick” in the context of just the process restart (not a full reboot).
It should be quicker than a restart of the management-server process (mgmtsrvr), which usually takes a couple of minutes.
I’d recommend the following when you plan to restart device-server:
Inform stakeholders: explain management-plane impact (not data-plane forwarding) but things like config pushes / logs / URL-filtering may be temporarily impacted.
Choose a maintenance window or off‐peak time.
After issuing debug software restart process device-server, monitor to confirm when the process is running again.
In HA mode: Consider failing over or pausing Preemptive mode.
Hope this helps,
Kim.
