public PingRequest(SystemIdentifier system, ServerIdentifier server)
 {
     System = system;
     Server = server;
 }
 public RequestIdentifier(Guid id, SystemIdentifier system)
 {
     Id = id;
     System = system;
 }
 public PingRequest(SystemIdentifier system)
     : this(system, ServerIdentifier.Create())
 {
 }
 protected bool Equals(SystemIdentifier other)
 {
     return string.Equals(Name, other.Name) && Equals(Server, other.Server);
 }