[ofa-general] [query] addressing the the IB switches using LID.

[Hal Rosenstock]

On Mon, 2007-05-14 at 08:26, Keshetti Mahesh wrote:
>         IB switches are not transparent and every IB switch should get
>         a LID
>         (at least one port of the switch is connected to the subnet).
>         
>         It doesn't matter if the SM is being executed on this switch
>         or not.
> Yes, According to the IB architecture IB switch should get a LID. Just
> out
> of curiosity I want to know whether the IB switch will be addressed
> using LID 
> or not.
> 
> I have mentioned SM here beacuse if the IB switch is running the SM
> then 
> it needs to be reachable using LID by all nodes inorder to answer the
> SA
> queries.

More than this.

>  But in the other case (no SM) I didn't see any situation yet where
> the 
> IB switch will be addressed using the LID assigned to it.

Operationally, it depends on the SM. You would also be relying on
something beyond the spec (so that if the SM changes (such a change
being valid), then things would stop working).

Also, there are some port 0 features which require the LID to be set.

Compliance wise, this is a non compliance (for the switch port 0 not to
have a LID).

-- Hal

> -Mahesh
> 
> 
> 
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