If you are getting a full AutoSupport from your nodes, I believe the data you want is in the cdb-net-port.xml and cdb-net-vifs.xml files. If you're looking for LIF information, it's in the network-interface.xml file.
Note that AutoSupport is sent on a per-node basis, not cluster. So each node will only report it's own data, and all of them together equates to the cluster.
If this post resolved your issue, please help others by selecting ACCEPT AS SOLUTION or adding a KUDO.