Check_MK Werk 2444: lnx_if: now able to detect interfaces which "break" during runtime

ID: 2444 Title: lnx_if: now able to detect interfaces which "break" during runtime Component: Checks & Agents Level: 1 Class: New Feature Version: 1.2.7i4 Previously the check <i>lnx_if</i> used the output of the <i>ethtool</i> command to determine if an interface is up or down. There was a fallback in case <i>ethtool</i> was not available, or did not report valid data at all (happens on broken interfaces). However, these fallback could not detect interfaces which break during runtime. The linux agent now reports additional information collected with the <i>ip link</i> command. In case the ethtool information is missing the <i>lnx_if</i> check will now use the data from <i>ip link</i> instead.