NE40 as PE and builts MPLS/VPN wth remote device. Local CE cannot interconnect remote CE and local CE and NE40 can communicate normally. MPLS/VPN of NE40 is configured correctly and there are public network label and private network label to remote PE. The topology can be seen in the attachment.
Software Version: VRP3.10-2225。
1. Check 32-bit mask public network route to remote PE lookback interface. Two equal cost routes can reach. One link from PE1 (NE40) to P1 is to use L2 feature service board interface of NE40 and connect (L2 feature service board interface does not support MPLS). One link is to use L3 feature service board interface and connect with P2 (L3 feature service supports MPLS). The destination address of TRACERT hop next and its link does not t support MPLS.
2. Adjust 32-bit mask public network route from PE1 (NE40) to loopback interface of PE2 as one route. The path of the next hop is built by L3 feature service board connecting with the interface of P2.
The route from NE40 to remote PE lookback interface address is equal cost route of load balance. One path supports MPLS and the other not. The route from NE40 to remote PE lookback interface address chooses the route not supporting MPLS.