On Thursday 16 June 2005 13:32, Manu Abraham wrote: > Johannes Stezenbach wrote: > > On Thu, Jun 16, 2005 at 02:10:10PM +0400, Manu Abraham wrote: > >>Is service_id supposed to be unique in a bouquet too ? or is it only in > >>a transponder ? > > > > ETSI TR 101 211 says (4.1.1 Network Information Table (NIT) information): > > > > "The SI uses two labels related to the concept of a delivery system, > > namely the network_id and the original_network_id. > > The latter is intended to support the unique identification of a > > service, contained in a TS, even if that TS has been > > transferred to another delivery system than the delivery system where it > > originated. A TS can be uniquely referenced > > through the path original_network_id/transport_stream_id. > > A service can be uniquely referenced through the path > > original_network_id/transport_stream_id/service_id. The > > network_id, thus, is not part of this path. > > Are there any cases that you or somebody else has seen Original Network > ID not to exist or the same like the case seen with service_id as Andrew > and Christopher stated ... I'll see if I can find that channel again - but it was over a year ago. > I believe TS_ID also would be unique in that case to be referenced in > hierarchial manner.. I definitely remember some multiplexes with the same TS_ID. Care to guess which satellite cluster? :)
