If the etsysPolicyRuleProfileIndex is 0 then this field is
read-create and defines the profile ID which the managing
entity desires assigned to frames matching this rule. This
is the administrative value and may differ from the
dynamically assigned active value.
If the etsysPolicyRuleProfileIndex is not 0 then this field is
The CoS with which to mark a frame matching this
PolicyRule.
Note that one special, otherwise illegal, values of the
etsysPolicyRuleCoS are used in defining the forwarding
action.
-1 Indicates that no CoS or forwarding behavior
modification is desired. A rule will not be
matched against for the purpose of determining
a CoS if this value is set.