I have 2 PE routers (loopback ip: 172.18.255.101 and 172.18.255.102) which are connected to 2 P routers respectively. In one of the LAN interface between the 2 PE routers, I have HSRP running with VIP 172.18.94.99. This particular LAN interface doesn't attached to any VRF. This LAN subnet is not advertised to the MPLS network as well. HOwever, I received the below message in the P routers where these 2 PE routers connected to. What could be the reason causing this ?
%TAGCON-3-DUP_ADDR_RCVD: Duplicate Address 172.18.94.99 advertised by peer 172.18.255.102:0 is already bound to 172.18.255.101:0
%TAGCON-3-TDPID: peer 172.18.255.102:0, TDP Id/Addr mapping problem (rcvd TDP address PIE, bind failed)