This indicates the type (e.g., static or dynamic) of the reverse-direction LSP within this associated tunnel. Just like the forward-leg type field, this tells you whether the return path is manually pinned or dynamically signaled, which matters because a static reverse leg won't automatically move off a degrading path the way a dynamic one can. This associated tunnel's reverse leg might be reported as static, meaning any path change on the return direction requires manual reconfiguration rather than automatic re-signaling.