[j-nsp] stealth bgp vulnerability?

[pramod babu G]

hai,
I have some doubt with Route Server...

if u have A , B, C , D as routers
In Full Mesh
A announces router to B, C, D
In RS
A announce to RS and then RS announces to B, C, D.
Consider that A is having one one route.
Then in the Full Mesh
No of announcements is 3
No of announcement in RS is 4.
Then how is traffic less in Route Server compared to Full Mesh.
I know traffic will be less, i even found from my simulation that traffic
is less in RS. But this doubt i am not able to come up with correct
reason. Do u have any correct reason?