The value of vRtrInetAggrAggregatorIPAddr specifies the
aggregator's IP address.
When vRtrInetAggrAggregatorAS is set to non zero, and
vRtrInetAggrAggregatorIPAddr is set to non-zero,
the supplied ASN and IP address will be used for the
aggregator path attributes.
When vRtrInetAggrAggregatorIPAddr is not set, the aggregate
routes ASN & Router-ID will be used for the aggregator
path attributes.