Comment 7 for bug 1686287

Same fabric label was allocated to two VRF.
This results in issue as MPLS label is not pointing to one of the BUM tree.
Say there are tow VRF v1 and v2 using label x. So if v1 programs x and then v2 updates same label, label will point to v2 bum tree and not v1. Hence all bum in v1 gets dropped.

Label in question(from core):
$1 = (AgentPath *) 0x7fd5d44e0760
(gdb) p $1->label_
$2 = 129229