[dvblast-devel] [PATCH] Improved preserve original TS ID

[Christophe Massiot]

On Wed, Sep 30, 2009, Marian Ďurkovič wrote:

>   I was always wondering what are the reasons for rewriting TSID. Do you need to
> have it unique for each IP stream for some administrative or technical reason?

Yep exactly.

> Anyway, if this is the goal, then rewriting TSID with SID does not actually
> help. There are multiple transponders using the same SID numbering scheme, so I
> definitely have multiple IP streams using the same SID. When the original TSID
> is preserved, at least the triplet {ONID, TSID, SID} is always unique. However,
> when SID is copied to TSID, the difference is lost.

Indeed but the probability is a bit lower.

>   Thus I believe that keeping the original TSID has clear benefits and therefore
> I haven't made it optional in my patch. But if there are other requirements, we
> should certainly go for a new CLI switch - however the open questions are what
> should be the default and whether rewriting TSID with SID satisfies the intended
> purpose.

The current behaviour could indeed become optional.

-- 
Christophe Massiot.