This object specifies how a MC aggregates learned
prefixes based on traffic type.
'bgp'
The bgp keyword configures aggregation based on entries in
the BGP routing table.
'nonBgp'
The non-bgp keyword configures aggregation based on
static routes.
'prefixLength'
The prefix-length keyword configures aggregation based on the
specified prefix length. The range of values that can be
configured for this argument is a prefix mask from 1 to 32.
If this command is not specified, the default aggregation
is performed based on a /24 prefix length