[openib-general] Connectivity

[Hal Rosenstock]

Hi Sean,

On Thu, 2005-09-01 at 15:46, Sean Hubbell wrote:
> Hello,
> 
>  I have a few question that I would like to ask and possible get some 
> help. Again, I am trying to get my ib0 interface up and running using 
> opensm and IPoIB. I have this working on my local host, but when I want 
> to go over the network to one of the other nodes, this does not work. So 
> I would like to ask the following question to assist me in debugging:
> 
> 1) How does one find out what the LID is for a given node and is LID 0 
> the localhost LID?

ibstat or ibstatus

> 2) How does one find out what the guid is for a given node?

Same

> 3) What are the best practices on debugging either IPoIB and/or opensm?

There's a FAQ for IPoIB (http://www.openib.org/docs/ipoib_faq.txt).
Running opensm with -V shows more of what is going on. The log
(/var/log/osm.log) usually shows what is going on.

-- Hal