This attribute specifies whether this Bgp instance is a Route
Reflector. If the value of this attribute is true, Bgp redistributes
routes it learns from an IBGP speaker to other IBGP speakers in the
AS. The rule of redistribution depends on the peer type: 1) When a
route is learned from a non-client peer, it is redistributed to all the
client peers within the cluster. 2) When a route is learned from a
client peer, it is redistributed to all the non-client peers and also to
the client peers. If the value of this attribute is false, Bgp does not
redistribute routes it learns from one IBGP speaker to other IBGP
speakers in the AS.