Ethernet Probe Order 2006-01-05 - By John Reiser
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Ed Wilts wrote:
>>https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=121860
>
>
> Really, this enhancement request should be closed since the
> functionality has been there for a long time...
No, the request should be kept open, because the most sensible way
is not there yet today. Utilizing HWADDR takes painful, per-system,
custom effort. A default of ascending interface number is simple
to understand, simple to implement, and takes care of requried
predecessors automatically.
> Probing the interfaces in any order is as wrong for Ethernet cards as it
> is for disk drives.
Not so. Probe them with a default order which gives significantly
higher performance with no penalties. The builtin chipset interface
bypasses PCI contention by going directly to the memory controller,
which is worth a lot.
It's why we have labels for disk volumes and HWADDR
> settings in the ifcfg sripts.
Again, administering HWADDR is painful and slow, particularly when
ascending PCI order is so easy to deal with.
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