On Sat, Dec 28, 2013 at 6:08 AM, Gandalf Corvotempesta <gandalf.corvotempe...@gmail.com> wrote: > > Hi, > i'm trying to configure a redundant IPoIB network. > Obviously, IB switches doesn't talk IP and so doesn't have STP support. > > How can I interconnect two different switches with multiple cables and > avoid loops? > > For example: > http://pastebin.com/raw.php?i=w8ySRibG > > To have a fully redundant network, I have to interconnect switch1 and > switch2 at least with 2 cables and enable STP to avoit loops > > Is OpenSM smart enough to detect a multiple link and shutdown one port > automatically (doing the same as STP) ?
Infiniband uses a switched fabric topology, so regular Ethernet STP topology rules do not apply. In this scenario here each link, direct or via the interconnects to the other switch, would just be an alternate path to the target. If I recall correctly, running OpenSM only binds to one port, so this is why you'd technically want those links between the switches to have a single fabric. Of course, losing the link to that port also means you will have no subnet manager, so you might want to consider having it running on one more host as well.. -Gennadiy -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
