85ViewsSystem viewPredefined user rolesnetwork-adminmdc-adminParameterstime: Sets the hello time (in centiseconds) in the range of 100 to 1000 in increments of 100 (as in100, 200, 300).Usage guidelinesHello time is the time interval at which spanning tree devices send configuration BPDUs to maintainthe spanning tree. If a device fails to receive configuration BPDUs within the set period of time, anew spanning tree calculation process is triggered due to timeout.HP recommends not setting the hello time with this command. Instead, you can specify thenetwork diameter of the switched network by using the stp bridge-diameter command and let thespanning tree protocols automatically calculate the optimal settings for the hello timer. If thenetwork diameter uses the default value, the hello timer also uses the default value.Examples# In MSTP mode, set the hello time to 400 centiseconds. system-view[Sysname] stp timer hello 400Related commands• stp bridge-diameter• stp timer forward-delay• stp timer max-agestp timer max-ageUse stp timer max-age to set the max age timer of the device.Use undo stp timer max-age to restore the default.Syntaxstp timer max-age timeundo stp timer max-ageDefaultThe max age is 2000 centiseconds.ViewsSystem viewPredefined user rolesnetwork-adminmdc-admin