The value of the object tSapIngressLspExpFC specifies the
forwarding class or the sub forwarding class to be used to
classify all the traffic that matches the specific Lsp Exp
value i.e. tSapIngressLspExpValue.
Specification of a sub forwarding class is also allowed. The
format of a sub forwarding class is the concatenation of the
base forwarding class and a sub class identifier in the form
base-fc-name[.sub-fc-name]
To reference a sub forwarding class, the mapping of the sub
forwarding class should be existing in this QoS policy.
Unless tSapIngressLspExpFC is specified explicitly, this match
will be ignored for classification purposes.