Symptom
'show tech-support mpls ldp' or 'show mpls ldp structs nbr-db' causes mpls_ldp process to crash.
Conditions
This defect only exists in IOS-XR R3.8.0.
For this defect to occur, there must be config 'mpls ldp neighbor x.x.x.x password disable'.
Workaround
Do not configure a global password using "mpls ldp neighbor password xxx" with individual "mpls ldp neighbor x.x.x.x password disable". Instead, explicitly configure a password for each and every MPLS LDP neighbor and avoid use of the "mpls ldp neighbor x.x.x. password disable" configuration.
Further Problem Description