If the etsysPolicyRuleProfileIndex is 0 then this field is
read-only and defines the profile ID which will assigned
to frames matching this rule. This is the dynamically assigned
value and may differ from the administratively configured
value.
If the etsysPolicyRuleProfileIndex is not 0 then this field is
read-create and defines the VLAN ID with which to mark a frame
matching this PolicyRule.
Note that three special, otherwise illegal, values of the
etsysPolicyRuleVlan are used in defining the forwarding action.
-1 Indicates that no VLAN or forwarding behavior
modification is desired. A rule will not be matched
against for the purpose of determining a marking
VID if this value is set.
0 Indicates that the default forwarding action
is to drop the packets matching this rule.
4095 Indicates that the default forwarding action
is to forward any packets matching this rule.