Creating Traffic Policies that regulate control plane traffic from BGP peers by writing the list of BGP peer addresses statically in a field-set is error prone and difficult to update. Selecting only internal or external peers requires additional care. This feature automatically populates a field-set with IPv4 or IPv6 prefixes corresponding to iBGP or eBGP peers. This can be used instead of “protocol neighbors bgp” (see "Support for CPU traffic policy" ) where only a particular peer type is needed, or to replace complicated manual field-set updates.