The ServerAlive (Opnum 3) method is used by clients to test the aliveness of the server using a given RPC protocol. If it returns without an error, the server is assumed to be reachable.

 [idempotent] error_status_t ServerAlive(
   [in] handle_t hRpc
 );

hRpc:  This MUST specify an RPC binding handle as specified in [MS-RPCE] section 3.2.2.3.1 .

When processing this call:

• The object resolver MUST NOT check if the client has the permissions to make this call.

• The object resolver MUST return an RPC success code of 0.