[RFC4328] and [RFC7139] provide the extensions to Generalized Multi-Protocol Label Switching (GMPLS) signaling to control the full set of OTN features including ODU0, ODU1, ODU2, ODU3, ODU4, ODU2e and ODUflex. However, these specifications do not cover the additional signal types ODU1e, ODU3e1, and ODU3e2 mentioned in [G.Sup43]. This draft provides GMPLS signaling extensions for these additional signal types.