Re: [RPRWG] Topology Discovery Timer.

[Denton Gentry <denny@xxxxxxxxxxxxxxxxxx>]

>     I think there are two implementation to send Topology Discovery
>packet on the ring.  One implemenation is "periodical" and another
>"need basis" (Ex: wrap detection)
> 
>     Should we implement both?  How do you think about this?

  To get to 50 msec protection, topology discovery will have to be
triggered whenever a significant event occurs.
  A topology mechanism which only runs when needed sounds great in
theory, but in practice is likely to be quite fragile. We should
periodically run the topology discovery.