Managed device
A managed device is a device whose configuration or security state is administered and can be monitored by an organization or management system.
Acing the CCNA Exam: Volume 2 Advanced Networking and Security
A managed device is a network device that exposes operational or configuration information to a network management system through a management protocol.
- How it is used
- Supports centralized monitoring, event notification, and configuration of network devices through SNMP.
- How deep it goes
- Explains MIB variables, agents, message operations, notification behavior, and UDP ports, but not device-specific configuration commands.
- Examples
- Uses router and switch interface status, CPU utilization, temperature, OSPF neighbors, configuration changes, and interface-down traps.
- What you can do after
- Operate SNMP monitoring by reading MIB variables, applying centralized changes, and responding to device-generated event notifications.
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Authorization in Action
A managed device is a device whose security state and configuration are administered and verifiable by an organization.
- How it is used
- Constrains runtime authorization by making organizational device management a baseline requirement for sensitive access.
- How deep it goes
- Explains layered policy evaluation and signed posture verification, but stops short of device-fleet management procedures.
- Examples
- Uses ACME deployment decisions, employee administration, support escalation, and cross-tenant operations as concrete access scenarios.
- What you can do after
- Apply it via ABAC or Cedar policies that require verified organizational device status alongside identity and contextual attributes.
Related concepts
- SNMPpart of · SNMP is an application-layer network management protocol for monitoring and configuring networked devices through a centralized management system.
- management information baseused by · A Management Information Base is a structured collection of managed objects and variables that a network-management protocol can query or modify.
- device posture signalused by · A device posture signal is a signal describing security-relevant properties or assessed state of a device involved in an access request.
- SNMP Set requestconfigured by · An SNMP Set request asks an SNMP agent to change specified management-object values on a managed device.
- SNMP Trapproduces · An SNMP trap is an unsolicited, unacknowledged notification message sent by a managed device to report an event to a network management system.
- attribute-based access controlused by · Attribute-based access control is an authorization model that evaluates subject, resource, action, and contextual attributes against policies to make access decisions.
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