[openib-general] IPoIB multicast group creation

[Hal Rosenstock]

On Thu, 2006-03-02 at 00:08, Fabian Tillier wrote:
> On 3/1/06, Sean Hefty <sean.hefty at intel.com> wrote:
> > >For the broadcast group, it depends on the SM having pre-created the
> > >broadcast group.  It only does a join (i.e. component mask doesn't
> > >provide all the settings to create the group) for the broadcast group.
> >
> > This is what I thought.  I just didn't understand why there was code to create
> > new groups.
> 
> That's for IP multicast groups.
> 
> > >Once in the broadcast group, it uses it as a template for all other
> > >groups, which allows it to issue a join with all paramters necessary
> > >to create the group if it doesn't exist already.  I believe the only
> > >field that changes is the MGID.
> >
> > Are the new groups for IP multicast groups?
> 
> Yes, some of which are joined as send-only members, and some as full
> members, depending which path initiates the join.

There's also non members which is supposed to be for IPmc routers but
this is currently not supported.

-- Hal

> 
> - Fab
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