NFS cross-mounting and IP labels

To enable NFS cross-mounting, each cluster node might act as an NFS client. Each of these nodes must have a valid route to the service IP label of the NFS server node. That is, to enable NFS cross-mounting, an IP label must exist on the client nodes, and this IP label must be configured on the same subnet as the service IP label of the NFS server node.

If the NFS client nodes have service IP labels on the same network, this is not an issue. However, in certain cluster configurations, you need to create a valid route.