[openib-general] IPoIB Loading and Starting

Hal Rosenstock halr at voltaire.com
Mon Sep 27 10:06:52 PDT 2004


On Mon, 2004-09-27 at 12:23, Roland Dreier wrote:
> In any case this seems rather ugly,
> since the only way to get a list of IPoIB multicast groups seems to be
> to query for _all_ multicast groups, filter for those that match the
> IPoIB GID format, and then attempt to join to find out which can be
> used on each local port.

Yes, it is ugly but that would be the tradeoff against manual
configuration.

In terms of "all multicast groups", this would be "all multicast groups"
for the PKeys configured on this port. In the SA GetTable, the PKey
could be wildcarded and the SA would only return those groups for PKeys
which are configured for the port. In any case, as this could change
over time, either the multicast group traps need monitoring or this
needs to be polled.

In terms of IPoIB GID format, this would check for the IPv4 or IPv6
signature depending on the IP interface type. 

-- Hal




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