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| Chapter 6: Video Viewer | 76 | |
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| Table 6.1: Video session types (Continued) |
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| Session types Icons | Description |
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| Scanning | You can monitor up to 16 target devices in thumbnail view. No status indicator |
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| icon is visible for a scan mode session. |
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Using Preemption
Preemption provides a means for users with sufficient privilege to take control of a target device from another user with lesser or equal privilege.
All users sharing the connection that is being preempted are warned, unless the target device is connected to a KVM switch. If the primary user has the corresponding access rights, they can reject the preemption.
Table 6.2 outlines the preemption scenarios and detailed scenarios in which preemption requests can be rejected.
Table 6.2: Preemption scenarios
Current user | Preempted by | Preemption can be rejected |
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User | Local user | No |
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User | User administrator | No |
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User | KVM switch administrator | No |
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KVM switch administrator | Local user | Yes |
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KVM switch administrator | KVM switch administrator | Yes |
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User administrator | Local user | No |
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User administrator | User administrator | Yes |
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User administrator | KVM switch administrator | No |
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Local user | User administrator | Yes |
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Local user | KVM switch administrator | Yes |
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Preemption of a user by an administrator
If an administrator attempts to access a target device being accessed by a user, a message requests that the administrator wait while the user is informed the session will be preempted. The user cannot reject the preemption request and will be disconnected. If the target device is attached to a KVM switch, the user will not be warned. The time period given before disconnection is defined by the Video session preemption timeout setting in the Global - Sessions category.
