Specifies the mode of default administrative weight
assignment for PNNI interfaces. When this value is set
to `uniform', by default the administrative weight of
each PNNI interface is set to 5040, as defined in the
ATM Forum PNNI 1.0 Specification. When this value is
set to `linespeed', by default the administrative weight
is set based on the linespeed or maximum cell rate of
the interface.
In the absence of other constraints, the `uniform' mode
causes PNNI routing to minimize the number of hops.
Basing administrative weight on linespeed allows path
selection to prefer paths along higher bandwidth
interfaces.