in a VPNv4 scenario, I have a PE which is sending 5000 prefixes (I am checking this thru "sh ip bgp..vpnv4 ip address....advertised-routes" command) but when I see on RR where this PE is peered with, I see number of prefixes received using received-routes command , i see 5450 (some extra prefixes) . Any idea what is the reason ?