[openib-general] some IB multicast sendonly thoughts
eitan at mellanox.co.il
Tue Jan 16 07:53:50 PST 2007
Or Gerlitz wrote:
> Eitan Zahavi wrote:
>> Or Gerlitz wrote:
>>> OK, assuming my setup consists of:
>>> +1 IB node doing only multicast TX on a group
>>> +2 an IB/Ethernet gateway
>>> 3+ Eth node doing only multicast RX on the equiv mac (forget manytoone)
>>> The gateway design is to register for SA MGID IN/OUT traps and when it
>>> gets MGID IN it joins the the mgroup as ***NonMember** etc
>> GW needs to listen on IGMP on the Eth port...
> this was fast... thanks for jumping on it.
> So you are saying that the GW **has** to listen on IGMP at the Eth side
> and **has** to do IB SA join in the only way that forces the SA to
> create the group --> FullMember ?
> If indeed, this is kind of bad,
I find it very reasonable
> I find the approach of the GW being
> "transparent" to the SA in the sense that it does not cause mgroup
> create/destroy nor mgroup ref count inc/dec much more robust, so you are
> saying its not feasible with the IB spec.
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