In a standard Refresh present phase, the provider sends no cookie since it is only listing the entries that existed as of the time in the cookie the consumer sent. In this case the consumer only needs to check entryCSNs against its last sent cookie.
In a standard Refresh present phase, the provider sends no cookie since it is only listing the entries that existed as of the time in the cookie the consumer sent. In this case the consumer only needs to check entryCSNs against its last sent cookie.