netmon

Overview ¶

Package netmon is responsible for monitoring network link and IP address changes via netlink and publishing them as pubsub events.

It starts after nmon and waits for node.StatusData.GetByNode(t.localhost) to return a non-nil and non-zero value before starting the netlink listener.

The netlink monitor subscribes to RTMGRP_LINK, RTMGRP_IPV4_IFADDR, and RTMGRP_IPV6_IFADDR groups to receive real-time notifications of link and address changes, equivalent to "ip monitor link address label".