Amendment 1 to ITU-T Recommendation G.8261/Y.1361 (2008) : - Align the recommendation to the new G.826x document structure by moving the definitions into G.8260 - Defines the EEC Interface network jitter limits - Clarifies some aspects related to reduced synchronous Ethernet function and to the EEC network limits - Clarifies several aspects related to Appendix VI, Measurement guidelines for packet based methods