The corrigendum fixed three errors in Recommendation ITU-T G.698.4 - Multichannel bi-directional DWDM applications with port agnostic single-channel optical interfaces- as follows: "It changed the value of maximum loss difference between HE-to-TE and TE-to-HE in Table 8-1 from NA to 2; "In Clause 10.1.3, it changed the text defining the timers, replacing timer T0 with timer T1; It fixed a formatting error in Table 9-4, moving two rows below the dividing line between two table sections.