Hi All, In FRR 7.2, I am seeing interface command Failures as below. This is happening randomly. Once system goes in to this state, failure happens for all interfaces. Is this a known issue ? Is there any fix for this ? dut4(config)# interface Vlan2 % Configuration failed: validation error. Please check the logs for more details. dut4(config)# interface Ethernet0 % Configuration failed: validation error. Please check the logs for more details. dut4(config)# interface Ethernet0 % Configuration failed: validation error. Please check the logs for more details. dut4(config)# interface Vlan2 % Configuration failed: validation error. Please check the logs for more details. dut4(config)# Not much logs generated, except below. Call to if_lookup_by_name_all_vrf(ifname) Fails leading to below error root@dut4:/# tail -f /var/log/frr/myfrr.log 2020/01/06 04:21:37 ZEBRA: lib_interface_destroy: only inactive interfaces can be deleted 2020/01/06 04:21:37 ZEBRA: [EC 100663331] nb_callback_configuration: error processing configuration change: error [validation error] event [validate] operation [destroy] xpath [/frr-interface:lib/interface[name='Ethernet32'][vrf='default']] 2020/01/06 04:21:37 ZEBRA: [EC 100663337] nb_candidate_commit_prepare: failed to validate candidate configuration 2020/01/06 04:22:24 ZEBRA: lib_interface_destroy: only inactive interfaces can be deleted 2020/01/06 04:22:24 ZEBRA: [EC 100663331] nb_callback_configuration: error processing configuration change: error [validation error] event [validate] operation [destroy] xpath [/frr-interface:lib/interface[name='Ethernet32'][vrf='default']] 2020/01/06 04:22:24 ZEBRA: [EC 100663337] nb_candidate_commit_prepare: failed to validate candidate configuration Regards Naveen