[ofa-general] ***SPAM*** Problem in IB network without Switch

[Jack Morgenstein]

"DOWN" means that you do not have a physical link between the ports.  Check your cables -- they may be bad, or badly inserted.

- Jack 


On Thursday 26 February 2009 08:38, lakshmana swamy wrote:
> 
>  Hi All
> 
>   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.
> 
> 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.
> 
> Operating System  :  Rocks 5.0 (RHEL 5.0)
> OFED : Cisco OFED roll 5.0 (OFED 1.3)
> HCA cards : Mellanox SDR
> 
> Please check the following commands output.
> 
> [root at mattool ~]# ibstatus
> Infiniband device 'mthca0' port 1 status:
>         default gid:     fe80:0000:0000:0000:0002:c901:08cd:13c1
>         base lid:        0x0
>         sm lid:          0x0
>         state:           1: DOWN
>         phys state:      2: Polling
>         rate:            2.5 Gb/sec (1X)
> Infiniband device 'mthca0' port 2 status:
>         default gid:     fe80:0000:0000:0000:0002:c901:08cd:13c2
>         base lid:        0x0
>         sm lid:          0x0
>         state:           1: DOWN
>         phys state:      2: Polling
>         rate:            2.5 Gb/sec (1X)
> 
> [root at mattool ~]# /etc/init.d/openibd status
> 
>   HCA driver loaded
> Configured devices:
> ib0 ib1
> Currently active devices:
> ib0
> ib1
> The following OFED modules are loaded:
>   rdma_ucm
>   qlgc_vnic
>   ib_sdp
>   rdma_cm
>   ib_addr
>   ib_ipoib
>   ib_ipath
>   mlx4_core
>   mlx4_ib
>   ib_mthca
>   ib_uverbs
>   ib_umad
>   ib_sa
>   ib_cm
>   ib_mad
>   ib_core
>   iw_cxgb3
> [root at mattool ~]# 
> 
> 
>  Thanks 
> 
> Laxman
> 
> _________________________________________________________________
> Find a better job. We have plenty. Visit MSN Jobs
> http://www.in.msn.com/jobs