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<br> Hi All<br><br> I have been trying to enable the IPoIB communication between two machines. The machines has been conncted with a Back-to-Back Infiniband Cable since I dont have IB switch. Installation of drivers and IP configuration has been done in both the machines. Subnet manager (opensmd) running on one machine.<br><br>The problem is communication has not been happening through IB."ibstatus" output shows port is in "Down" State in both the machines. What could be the problem, Iam unable to figure out where is the problem.<br><br>Operating System : Rocks 5.0 (RHEL 5.0)<br>OFED : Cisco OFED roll 5.0 (OFED 1.3)<br>HCA cards : Mellanox SDR<br><br>Please check the following commands output.<br><br>[root@mattool ~]# ibstatus<br>Infiniband device 'mthca0' port 1 status:<br> default gid: fe80:0000:0000:0000:0002:c901:08cd:13c1<br> base lid: 0x0<br> sm lid: 0x0<br> state: 1: DOWN<br> phys state: 2: Polling<br> rate: 2.5 Gb/sec (1X)<br>Infiniband device 'mthca0' port 2 status:<br> default gid: fe80:0000:0000:0000:0002:c901:08cd:13c2<br> base lid: 0x0<br> sm lid: 0x0<br> state: 1: DOWN<br> phys state: 2: Polling<br> rate: 2.5 Gb/sec (1X)<br><br>[root@mattool ~]# /etc/init.d/openibd status<br><br> HCA driver loaded<br>Configured devices:<br>ib0 ib1<br>Currently active devices:<br>ib0<br>ib1<br>The following OFED modules are loaded:<br> rdma_ucm<br> qlgc_vnic<br> ib_sdp<br> rdma_cm<br> ib_addr<br> ib_ipoib<br> ib_ipath<br> mlx4_core<br> mlx4_ib<br> ib_mthca<br> ib_uverbs<br> ib_umad<br> ib_sa<br> ib_cm<br> ib_mad<br> ib_core<br> iw_cxgb3<br>[root@mattool ~]# <br><br><br> Thanks <br><br>Laxman<br><br /><hr />Get a view of the world through MSN Video. Some things just cannot be left unseen. <a href='http://video.msn.com/?mkt=en-in' target='_new'>Try it!</a></body>
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