Ira, The IPv6 SNM consolidation option in OpenSM currently collapses the SNM groups down to 1 group aliased group. However, in a heterogeneous network, not all ports will be able to meet certain group parameters (MTU, rate). This has been discussed on the list before. My current read of the code indicates that these joins would be rejected. Is that right ? If so, my question is why not allow them to create and join with their original real multicast group for this case ? The downside would be that if there were a lot of ports like this, then the consolidation would reduce the number of groups but maybe not enough. So would we then want an additional option for doing this (and what the default should be) ? One cut on the default would be to keep it the same as now but does that really matter ? Ideally, those additional SNM groups would be collapsed too. I think that aspect was dealt with in Jason's approach to this in a thread entitled "IPv6 and IPoIB scalability issue": http://lists.openfabrics.org/pipermail/general/2006-November/029621.html in which he proposed an MGID range for collapsing IPv6 SNM groups.
Also, have you tried IPv6 SNM consolidation with multiple partitions ? I may have more on this aspect later. -- Hal _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
