Consistently with draft-ietf-ace-key-groupcomm-18, REQ22 in Appendix A.1 should be updated as follows:
OLD
REQ22 - Specify the communication protocol that the members of the group must use: CoAP [RFC7252], also for group communication [I-D.ietf-core-groupcomm-bis].
NEW
REQ22 - Specify the communication protocol that the members of the group must use (e.g., CoAP for group communication): CoAP [RFC7252], also for group communication [I-D.ietf-core-groupcomm-bis].
Consistently with draft-ietf-ace-key-groupcomm-18, REQ22 in Appendix A.1 should be updated as follows:
OLD
NEW