Summary

Corrigendum 4 to Recommendation ITU-T G.998.4 (2010) covers the following functionalities:

error-free throughput (EFTR) (corrigendum)

near-end defects leftr and seftr (corrigendum)

SID counter and TS at OLR transition (corrigendum)

inconsistency between Recommendation ITU-T G.998.4 and its Amendment 1 (corrigendum).