Avocent Network Device SPC420 - Manual (Page 62)

42 DSView 3 Software Installer/User Guide
group with a preemption level of 4 may preempt other level 4 users or user groups, as well as those
with a level 1, 2 or 3 setting.
The preemption levels may be used in the following ways:
• User preemption level - This is the preemption level assigned to a user by a DSView 3 software
administrator or user administrator. If this value is larger than the highest preemption level of
the user group to which the user belongs, the value will be used as the effective user
preemption level.
• Group preemption level - This is the preemption level assigned to user groups to which the
user belongs. If the user is assigned to multiple user groups with different preemption levels,
this will be the preemption level of the user group with the highest level. For example, if a user
belongs to the administrators (level 3) and auditors (level 1) user groups, this value will be
defined as 3. If this value is larger than the highest preemption level of the user, the value will
be used as the effective user preemption level.
• Effective user preemption level - This is the largest value between the user and group
preemption level, and is the actual preemption level that will be recognized by the DSView 3
software when the user attempts to preempt another user’s session. For example, if user
belongs to the auditors group (level 1) but is assigned a user preemption level of 4, the user
will have an effective user preemption level of 4. Although a member of the auditors group,
this user would also be able to preempt the session of a user belonging to the administrators or
appliance administrators user groups.
An administrator or user administrator may also specify an OSCAR graphical user interface
preemption level that is applied to users accessing target devices through the OSCAR interface. See
KVM Switch and Cascade Switch Settings on page 154.
Internet Explorer Considerations
When the Internet Explorer web browser is used, specific settings are required to enable the
DSView 3 software to operate correctly.
• SSL (Secure Sockets Layer) certificates - Used for secure authentication between the DSView
3 software client and DSView 3 software hub server; see Certificates on page 46.
Table 4.2: User and User Group Preemption Levels
Preemption Level Description
4
The default preemption level for a new local user of a KVM switch or serial console
appliance.
3
The default preemption level for the DSView 3 software administrator and appliance
administrator user groups.
2 The default preemption level for the user administrator user group.
1 The default preemption level for the users and auditors groups.