This issue is involved a route reflector (ASR1001x running "universalk9.03.12.00a.S.154-2.s0a-std.SPA.b" code and its 2 RR client PE1 and PE2 (both ASR9010 running IOS XR 5.3.1 with all the necessary SMUs)PE1 received default route through eBGP, adve...