[ofa-general] ibnetdiscover

[Hal Rosenstock]

On 8/7/07, Bernd Schubert <bs at q-leap.de> wrote:
> Hi,
>
> I two questions about ibnetdiscover.
>
> 1) How reliable is it? Here in our testing lab ibnetdiscover works fine,
> detects the proper names of the two infiniband switches and all connected
> client cards. On a customer system it doesn't work that well. I know the
> client is connected to an MTS2400 switch, but ibnetdiscover detects a
> MT47396. The MTS2400 is connected to MTS1400 switch, but again ibnetdiscover
> believs it is again a MT47396. Any idea whats going on?

Where is MT47396 being displayed ? ibnetdiscover displays the
NodeDescription and perhaps that is not set properly on those
switches. You can verify this with smpquery nodedesc.

>
> 2) ibnetdiscover also can't detect everything on the very same customer
> system, it shows this error
>
> ibwarn: [30449] handle_port: NodeInfo on DR path 0,1,12,21,16,1 failed,
> skipping port
>
> Does this mean port 1 of the last switch failed?

It means that the peer port of port 1's SMA failed to respond to the
SubnGet NodeInfo. What is connected there and what state is it in ?

> I'm also not sure about the pathes, IMHO the man page of ibnetdiscover should
> give one more example, so
>
>
>
>       -D      use directed path address arguments. The path
>               is a comma separated list of out ports.
>               Examples:
>               "0"             # self port
>               "0,1,2,1,4"     # out via port 1, then 2, ...
>
>
> "out via port 1, then out via port 2, then out via port 1, ..."
>
> or
>
> "out via port 1, then in port 2, then out via port 1, ..."
>
>
> You see what I mean?

It's the former. It's the out port on each hop along the path.

-- Hal

>
>
> Thanks in advance,
> Bernd
>
> --
> Bernd Schubert
> Q-Leap Networks GmbH
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