3.2.1.1.2 Version 2 Notification Port Event Filters
For each version 2 notification port, the client maintains a list of event filters that have been registered with the port. This information includes the following:
The combination of object type (section 2.2.2.11) and filter flags (section 2.2.2.13 through 2.2.2.21) indicating one or more types of event indications that MUST be queued to the port.
A 32-bit integer context value that is returned to the client when an event indication is retrieved.
The cluster object context handle associated with the event filter, as specified in ApiAddNotifyV2 (section 3.1.4.2.137) for protocol version 3.
The latest state sequence number associated with an event filter that is specific to a resource, group, node, cluster network, or cluster network interface cluster object.