Hi, I did google on this and found the following link: http://www.mail-archive.com/linux-r...@vger.kernel.org/msg00953.html
As per above link: RDMA CM treats AF_INET6 addresses that are either 0 or prefixed with FF1x:A01B::/32 as MGIDs 1) So, does it mean that mckey works with multicast addresses starting with FF1x:A01B only ? 2) Again, I did some testing and found that if I use multicast address * FF12:A01B:0:0:0:0:0:A* with mckey, then multicast join fails with following error: #mckey -M FF12:A01B:0:0:0:0:0:A -b fe80::202:c903:0:d1e1 mckey: starting server mckey: joining mckey: event: RDMA_CM_EVENT_MULTICAST_ERROR, error: -22 test complete return status 0 mckey fails if "X" bit in "FF1X:A01B: .... ", is 2. For any value of X other than 2, mckey works fine. Can anyone please tell me the reason of this ? Thanks in advance, Vivek On Sat, Mar 6, 2010 at 9:34 PM, Vivek Satpute <vivekonlin...@gmail.com>wrote: > Hi, > > I am new to infiniband technology, so do not have much more exposure of it. > > I have installed OFED-1.5 on my machine. I was trying to run mckey > application > with following *two different multicast groups*. > > mckey -M *FF10:0:0:0:0:0:0:B* -b 10.10.10.1 (receiver) > mckey -M *FF10:0:0:0:0:0:0:C* -b 10.10.10.2 -s (sender) > > Above both multicast groups are different, still data sent by sender is > received > by receiver on another machine. Why it happens ? > > Is there any special format of IPv6 multicast groups for Infiniband ? > > > Thanks in advance, > Vivek. >
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