Amendment 2 to Recommendation ITU-T G.8275.1 (2020) provides the following updates: -Clarify the setting of frequencyTraceable for T-GM and T-BC -Add details on the use of IEEE 1588-2019 -Clarification on some procedures -Add new appendix “Considerations in an environment of more than two PTP ports on a single PTP communication path when using transparent clocks and multicast addressing”