Symptom
Backbone IP is getting visible in end customer trace
RP/0/RSP0/CPU0:XR#traceroute 192.168.22.1
Mon Nov 27 06:54:28.544 UTC
Type escape sequence to abort.
Tracing the route to 192.168.22.1
1 192.168.50.1 3 msec 2 msec 2 msec
2 192.168.30.1 2 msec 2 msec 2 msec <<<<< core facing ingress interface BE3
3 192.168.22.1 2 msec * 2 msec
Conditions
Device does not have any interface of egress bundle on ingress LC.
Applicable to 2-stage platforms ASR9K, CRS, NCS6K, XRV9K etc
Workaround
Customer can have atleast one interface of egress bundle in ingress LC as well.
No issue occurs on physical interface
Further Problem Description