[openib-general] IPoIB and lid change

[Grant Grundler]

On Fri, Feb 10, 2006 at 11:05:34AM -0500, Hal Rosenstock wrote:
> > Hi, Roland!
> > One issue we have with IPoIB is that IPoIB may cache a remote node path
> > for a long time. Remote LID may get changed e.g. if the SM is changed,
> > and IPoIB might lose connectivity.

I wonder if this is why when I reload the IB drivers on one node
I sometimes have to reload them on other nodes too. Otherwise
ping over IPoIB doesn't work.

> The remote LID may get changed for other reasons too without an SM
> change (SM merge of 2 separate subnets). How can this be handled ?

Isn't this just another case of the SM changing for one of the subnets?

grant