What is 2024-01-15_08:49:05.30168 ifno 3 NO gateway ?

2024-01-15_08:32:51.13150  [run_client,3765] NTP update failed... retrying(58)
2024-01-15_08:36:14.29196 (LAN) Unexpected TXQ (0) queue failure: -28
2024-01-15_08:37:34.05730 (LAN) Unexpected TXQ (0) queue failure: -28
2024-01-15_08:41:37.32346 (LAN) Unexpected TXQ (0) queue failure: -28
[devstatus] set shared memory update_ps bit (shared memory:1)
2024-01-15_08:49:04.84686
2024-01-15_08:49:04.84697 Port      UU123456789abc  (U: USB)
2024-01-15_08:49:04.85010 Link      00554032300300  (0: no link,  2: 100M/USBv2, 3: 1G/USBv3,  4: 2.5G,  5: 10G)
2024-01-15_08:49:04.85745 LastLink  --0-----------
[Host OS][update_ps] SendToGuest successful!
2024-01-15_08:49:05.28401 
2024-01-15_08:49:05.28507 BBG_Up ifno=3
2024-01-15_08:49:05.28676 
2024-01-15_08:49:05.28800  dump_backtrace: fp:0x46920150, pc:0x40648604
2024-01-15_08:49:05.29354 Call trace: 0x40648604 0x40773c8c 0x40770764 0x401c09f8 0x400bbc10
2024-01-15_08:49:05.30168 ifno 3 NO gateway =========================================
2024-01-15_08:49:05.30174 ifno 3 NO gateway ?????????????????????????????????????????????????????????
2024-01-15_08:49:05.30176 ifno 3 NO gateway =========================================
2024-01-15_08:49:05.30180 ifno 3 NO gateway =========================================
2024-01-15_08:49:05.30183 ifno 3 NO gateway ?????????????????????????????????????????????????????????
2024-01-15_08:49:05.30185 ifno 3 NO gateway =========================================
2024-01-15_08:49:05.31391 ifno 3 NO gateway =========================================
2024-01-15_08:49:05.31395 ifno 3 NO gateway ?????????????????????????????????????????????????????????
2024-01-15_08:49:05.31397 ifno 3 NO gateway =========================================
[devstatus] set shared memory update_ps bit (shared memory:1)
2024-01-15_08:49:06.32958
2024-01-15_08:49:06.32965 Port      UU123456789abc  (U: USB)
2024-01-15_08:49:06.32989 Link      00054032300300  (0: no link,  2: 100M/USBv2, 3: 1G/USBv3,  4: 2.5G,  5: 10G)
2024-01-15_08:49:06.33717 LastLink  --5-----------
[Host OS][update_ps] SendToGuest successful!
2024-01-15_08:49:06.78564 
2024-01-15_08:49:06.78620 BBG_Down info=3
2024-01-15_08:49:06.78776 
2024-01-15_08:49:06.78912  dump_backtrace: fp:0x46920150, pc:0x40648604
2024-01-15_08:49:06.79534 Call trace: 0x40648604 0x40772084 0x40770cec 0x401c09f8 0x400bbc10
2024-01-15_08:49:06.80420
2024-01-15_08:49:06.80450 BBG_Down ifno=3
2024-01-15_08:49:06.80711 [DPDK][Vlan_handle_entry():70] ACTION_REGISTER/ACTION_UPDATE WAN1 ifno 3 vid 65535 IF_TYPE_ETHERNET/IF_TYPE_VLAN eth_port=5
2024-01-15_08:49:06.80716
[DPDK][Vlan_handle_entry():71] IF_MAC: 14:49:BC:0E:2E:21; GW_MAC: 00:00:00:00:00:00
2024-01-15_08:49:33.24973