Call-home

The call-home procedure in network management refers to a feature where a network device initiates a connection to a management server instead of waiting to be contacted. This is particularly useful for devices behind firewalls or NATs, where inbound connections might be blocked. The device “calls home” to the management server, establishing a secure session over which configurations and updates can be sent. This mechanism enhances security and simplifies the management of devices that may not have a fixed IP address or are deployed in remote locations. Call-home is commonly used in protocols like NETCONF to ensure devices remain manageable even in restrictive network environments.

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