***SPAM*** Re: [ofa-general] ***SPAM*** Unable to get IPoIB working

[Hal Rosenstock]

On Mon, Jan 26, 2009 at 3:44 PM, Chuck Hartley <hartlch14 at gmail.com> wrote:
> Forgot to do reply all...
>
> Well, changing the MTU and using datagram mode did not fix things.
>
> I suspect that the problem lies in the difference between what
> ifconfig shows and what the ip command shows.  The fact that ip says
> "NO-CARRIER" and "state DOWN" seems to indicate that the interface is
> not completely functional in the IPoIB world.
>  I don't understand why ip thinks there is no carrier, yet the status
> lights on the HCAs and
> switch are ok and everyone seems to be communicating ok on the
> InfiniBand side of things.
>
> I did some further experimentation and hooked up the other InfiniHost
> HCA to our existing network.  I see the same symptoms there, i.e. "ip
> show device" shows no carrier and the interface state is down.

Do your CA ports show active for port state ?

Is an SM running in your subnet ?

-- Hal

> Does this indicate that there is some problem with IPoIB on Fedora9?
> We are running kernel 2.6.26.6-79.fc9.x86_64.
>
> Is there some IPoIB debug I can turn on somehow?
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