Force10 Networks Force10 TeraScale E-Series E1200i - Manual (Page 89)

Installing and Maintaining the E1200i System 89
SFMs and Alarms
The number of SFMs present in the system when it boots determines the level of alarms sent when a tenth
(redundant) SFM is removed or fails. At boot time, if ten SFMs are present and functioning, the E1200i
system issues no alarms. However, if one SFM fails or is removed, the system sends a minor alarm stating
that nine SFMs are present. The system requires eight functioning SFMs to pass traffic.
At boot time, if eight SFMs are present and functioning, the E1200i system issues no alarms. The system
issues no alarms if an SFM is added to the system; however, if the number of functioning SFMs changes
from nine to eight, the system sends a minor alarm event. The system always triggers a major alarm when
the number of working SFMs reaches seven.