[ofa-general] Re: [RFC] the never ending search for SA scalability

[Hal Rosenstock]

On 8/13/07, Sean Hefty <mshefty at ichips.intel.com> wrote:
> > If all you want is to answer a query with the redirect to the source
> > LID, it's probably quite easy to extend opensm in this way.
>
> It's not quite that simple.  The actual data eventually needs to come
> from the master SA, so opensm can't simply redirect every query.
>
> I believe as soon as the master SA becomes involved in the redirection,
> it would need to run some distributed SA protocol.  The master SA would
> need to know that the requested data can be found at the redirected
> location.

Also, when there are multiple SAs available, it would "need" some
basis (e.g. policy) on which to base its redirection ("nearest"
"approx equal distributed load" SA).

> - Sean
>