Definition - What does Protocol mean?
In a BDSM relationship, protocol is used to describe rules and behaviors that govern the BDSM relationship. Due to the different power dynamics in a BDSM relationship, there are different sets of protocols and honorifics that are required. This enforced behavior defines the interpersonal dynamic and rituals that take place in the relationship.
Kinkly explains Protocol
In a BDSM relationship, protocols are used to define the behavior and hierarchy between partners. For example, a submissive may be unable to sit in certain areas and must refer to his partner as Mistress.