[ofa-general] change mtu

[Michael Di Domenico]

On Mon, Aug 17, 2009 at 9:09 AM, Hal Rosenstock<hal.rosenstock at gmail.com> wrote:
>> No i'm not running OpenSM,
>
> And that SM doesn't support cranking the PR MTU down for Tavor communication

Dunno, didn't check... But i shall.  How do i do it in OpenSM?

>>
>> i'd prefer to do this at the machine level
>> if possible rather then the fabric level.
>
> I think the MTUCap of the .ini file would need to be changed in order to get
> the SM to negotiate the link MTU (NeighborMTU) smaller. MTUCap 3 is 1024.