This is tracking the upstream effort needed to deliver the feature request described below.

There are significant RTN_GETLINK calls being made to obtain the carrier state, even during the same poll round.

There is a loop in netdev_linux_run() that should detect changes in interface status (including carrier). We could rely more on the output of that loop and, even if we consider the case of netlink notifications being lost because, reduce the number of times we request that information form the kernel in other places of the code.

See https://docs.google.com/document/d/1pj6V-FeCJpDIIj673k5OQ_y9Xrg7yKBqIOaAKpHd3JA/edit?tab=t.1uosvqog4do7 for more info