3.1.4.10 Connecting to a RunspacePool
After a client disconnects from a RunspacePool, that same RunspacePool can be reconnected to by the previous client session or by a new client session. When a previous client reconnects, the server session recognizes it based on the client's wsmv:SessionId element (see [MS-WSMV] section 3.1.4.1.37). When a new client session connects to the RunspacePool, the client and server exchange messages to negotiate a new session identifier.