Basant Kumar added a comment - 11/Mar/26 6:57 AM Dear Team, We restarted the NEP services yesterday for the KK circle; however, the application is still not coming up. Upon checking the startup logs, we are observing continuous errors related to Level1Link loading. Kindly check and suggest. Please find attached logs. 2026-03-11 09:08:42,605 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-U_ZQ_OOON_SRAN_KPRVI2_ZQ_OOON_SRAN_KPRVI2_KKGGSN6_S1-U_VLAN1499_BestEffort' to IDU piece 'KPRVI2_7B9F001CEF174E7D884984A687961E84' has null From Component 2026-03-11 09:08:42,820 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-U_ZQ_OOON_SRAN_KPRVI2_ZQ_OOON_SRAN_KPRVI2_KK-CIS-NDR-SPG-01_S1-U_VLAN1499_BestEffort' to IDU piece 'KPRVI2_CA2F6BEF9BEB4EA1B6529A348A19C528' has null From Component 2026-03-11 09:08:42,967 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-MME_ZQ_OOON_SRAN_KPRVI2_ZQ_OOON_SRAN_KPRVI2_LNMME-2_S1-MME_VLAN1499_BestEffort' to IDU piece 'KPRVI2_FE5722B2668745568E6B00053AA8B044' has null From Component 2026-03-11 09:08:43,142 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-U_ZQ_OOON_SRAN_KPRVI2_ZQ_OOON_SRAN_KPRVI2_KKGGSN4_S1-U_VLAN1499_BestEffort' to IDU piece 'KPRVI2_138D429A43044002BD50DDC79CD04F96' has null From Component 2026-03-11 09:08:43,292 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-U_OOON_SRAN_GUTHA1_OOON_SRAN_GUTHA1_KKGGSN3_S1-U_VLAN2634_BestEffort' to IDU piece 'KKMWGUTHA1_3D3B7767613F4602AA5688C6E9301203' has null From Component 2026-03-11 09:08:43,432 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-MME_ZQ_OOON_SRAN_KPRVI2_ZQ_OOON_SRAN_KPRVI2_LNMME-10_S1-MME_VLAN1499_BestEffort' to IDU piece 'KPRVI2_F20EB0B4745B43CFA8E13C945EB1F86B' has null From Component 2026-03-11 09:08:43,634 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-U_ZQ_OOON_SRAN_KPRVI2_ZQ_OOON_SRAN_KPRVI2_KK-CIS-WFD-SPG-01_S1-U_VLAN1499_BestEffort' to IDU piece 'KPRVI2_D6AB1807E9CC441581F47C064D5E5404' has null From Component 2026-03-11 09:08:43,781 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-MME_OOON_SRAN_GUTHA1_OOON_SRAN_GUTHA1_LNMME-10_S1-MME_VLAN2634_BestEffort' to IDU piece 'KKMWGUTHA1_8577BFC3A1EE41F392027D27C4698142' has null From Component 2026-03-11 09:08:43,963 ERROR [com.mobinets.nep.npt.model.domain.loader.version.impl.Level1LinkLoaderImpl] (pool-6-thread-3) Level-1Link from Circuit'S1-MME_OOON_SRAN_GUTHA1_OOON_SRAN_GUTHA1_LNMME-1_S1-MME_VLAN2634_BestEffort' to IDU piece 'KKMWGUTHA1_5868F0F5E27246399CFB690CC5CB881F' has null From Componen: 2026-03-10 23:51:02,063 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 801692C5837C433998141CD4274D45A7 com.mobinets.nps.model.network.Circuit S1-MME_KK-LBL4690-1_KK-LBL4690-1_LNMME-10_S1-MME_VLAN3484_BestEffort 2026-03-10 23:52:29,071 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 8E524360E9374557BB5DBC9E6614C0F7 com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_KAPUU3_OOON_SRAN_KAPUU3_MM_BLR845-11_S1-U_VLAN2732_BestEffort 2026-03-10 23:53:55,808 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! FD62AE3E81824E65880C674FBDD7C688 com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_KAPUU3_OOON_SRAN_KAPUU3_MM_BLR845-3_S1-U_VLAN2732_BestEffort 2026-03-10 23:54:40,802 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 67DAAF30C88347F0A376AFF353158275 com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_KAPUU3_OOON_SRAN_KAPUU3_MM_BLR845-6_S1-U_VLAN2732_BestEffort 2026-03-10 23:58:09,907 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 610421E89A9C4765A4D9D83FB11D2F60 com.mobinets.nps.model.network.Circuit S1- Additionally, since the circle was not coming up, we deployed NEP 562 on the KK circle because this level link issue fixed in BR after deploying this patch. After the deployment, the following warnings are continuously appearing in the logs. Kindly check this issue on priority. 2026-03-11 13:39:36,981 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 87944C8D5816495D8 EDC721536996CEB com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_KDKNR1_OOON_SRAN_KDKNR1_MM_BLR845-12_S1-U_VLAN1506_BestEffort 2026-03-11 13:39:52,144 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 0C29E1D05F5244E19 5ECA6ABA61F6AEC com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_SORKN1_OOON_SRAN_SORKN1_MM_BLR845-8_S1-U_VLAN3059_BestEffort 2026-03-11 13:39:55,349 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! C7082654AD5E43738 4F954175ADF3367 com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_BG1231_OOON_SRAN_BG1231_MM_BLR845-8_S1-U_VLAN2800_BestEffort 2026-03-11 13:40:13,293 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 610421E89A9C4765A 4D9D83FB11D2F60 com.mobinets.nps.model.network.Circuit S1-MME_OOON_SRAN_TLEKP1_OOON_SRAN_TLEKP1_LNMME-10_S1-MME_VLAN3108_BestEffort 2026-03-11 13:40:26,608 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 18C7EED11D114C0BA 2102FC315E20D5F com.mobinets.nps.model.network.Circuit S1-U_TBNN_SRAN_BL3819_TBNN_SRAN_BL3819_MM_BLR845-9_S1-U_VLAN2801_BestEffort 2026-03-11 13:40:28,640 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 806AE5410FC94352A 1D91951DA857801 com.mobinets.nps.model.network.Circuit S1-U_TBNN_SRAN_BL4504_TBNN_SRAN_BL4504_MM_BLR845-1_S1-U_VLAN3484_BestEffort 2026-03-11 13:40:37,899 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! F3CB4A3E910042488 EF930BB54A5306A com.mobinets.nps.model.network.Circuit S1-U_TMLN_SRAN_MLR048_TMLN_SRAN_MLR048_KKGGSN2_S1-U_VLAN830_BestEffort 2026-03-11 13:41:10,691 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 88095132DFE94C0B8 81FB8354B2D8E77 com.mobinets.nps.model.network.Circuit S1-MME_OOON_SRAN_TORA10_OOON_SRAN_TORA10_LNMME-7_S1-MME_VLAN2801_BestEffort 2026-03-11 13:42:06,380 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! 6D00B8BA26FE42CEA B2DF382DD6ACAC7 com.mobinets.nps.model.network.Circuit S1-U_OOON_SRAN_BIDRE1_OOON_SRAN_BIDRE1_MM_BLR845-9_S1-U_VLAN3291_BestEffort 2026-03-11 13:42:27,848 WARN [com.mobinets.npt.network.routing.NetworkRoutingManager] (pool-8-thread-1) Level-1-Link Not found!!!!!!!! EF75D2BBA2174B8C8 5E4ABF2213DE712 com.mobinets.nps.model.network.Circuit S1-U_TBNN_SRAN_BL4504_TBNN_SRAN_BL4504_MM_BLR845-8_S1-U_VLAN3484_BestEffort

Srishti Kashyap added a comment - 20/Mar/26 7:38 AM Build 3.7.71.568 released//possible fix:caching links and monitory logs

Srishti Kashyap added a comment - 25/Mar/26 4:22 AM Build 3.7.71.570 is released with monitoring logs

Bessem Manita added a comment - 27/Mar/26 6:15 AM possible fix was released in patch 3.7.71.571

Abir Messaikeh added a comment - 15/Apr/26 9:12 AM applied on PROD and fixed