This attribute shows the aggregate SVC EIR (for excess traffic
transiting in the network through high priority queue) assigned to
existing SVCs on the interface.
The value of currentAggregateSvcEirHighQ could be greater than
the provisionable value of maximumAggregateSvcEirHighQ if the
value of maximumAggregateSvcEirHighQ has been changed during
the service of this FrUni or unlimitedAggregateEir is set to yes.