MSR2600 OSPF 100 Neighbor flapping

MSR2600OSPF状态经常changed from FULL to DOWN导致与MSR3600断开

检查设备日志如下：

%Aug 9 14:45:54:098 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/5/OSPF_NBR_CHG: OSPF 100 Neighbor 172.20.118.1(GigabitEthernet0/0) changed from FULL to INIT. %Aug 9 14:46:47:379 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/5/OSPF_NBR_CHG: OSPF 100 Neighbor 172.20.118.1(GigabitEthernet0/0) changed from LOADING to FULL. %Aug 9 14:48:04:098 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/5/OSPF_NBR_CHG: OSPF 100 Neighbor 172.20.118.1(GigabitEthernet0/0) changed from FULL to INIT. %Aug 9 14:53:51:511 2022 Tsz-Ching-Lorry_910046605_MSR2600 NTP/5/NTP_SOURCE_LOST: Lost synchronization with NTP server with IP address 172.20.0.2. %Aug 9 14:54:49:510 2022 Tsz-Ching-Lorry_910046605_MSR2600 NTP/5/NTP_LEAP_CHANGE: System Leap Indicator changed from 3 to 0 after clock update. %Aug 9 14:54:49:511 2022 Tsz-Ching-Lorry_910046605_MSR2600 NTP/5/NTP_STRATUM_CHANGE: System stratum changed from 16 to 8 after clock update. %Aug 9 15:12:14:349 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/6/OSPF_LAST_NBR_DOWN: OSPF 100 Last neighbor down event: Router ID: 200.1.100.254 Local address: 172.20.118.2 Remote address: 172.20.118.1 Reason: DeadInterval timer expired. %Aug 9 15:12:14:349 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/5/OSPF_NBR_CHG: OSPF 100 Neighbor 172.20.118.1(GigabitEthernet0/0) changed from INIT to DOWN. %Aug 9 15:25:24:349 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/6/OSPF_LAST_NBR_DOWN: OSPF 100 Last neighbor down event: Router ID: 200.1.100.254 Local address: 172.20.118.2 Remote address: 172.20.118.1 Reason: DeadInterval timer expired. %Aug 9 15:25:24:349 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/5/OSPF_NBR_CHG: OSPF 100 Neighbor 172.20.118.1(GigabitEthernet0/0) changed from INIT to DOWN. %Aug 9 15:36:33:169 2022 Tsz-Ching-Lorry_910046605_MSR2600 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet0/0 changed to down. %Aug 9 15:36:33:169 2022 Tsz-Ching-Lorry_910046605_MSR2600 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet0/0 changed to down. %Aug 9 15:37:05:169 2022 Tsz-Ching-Lorry_910046605_MSR2600 IFNET/3/PHY_UPDOWN: Physical state on the interface GigabitEthernet0/0 changed to up. %Aug 9 15:37:05:172 2022 Tsz-Ching-Lorry_910046605_MSR2600 IFNET/5/LINK_UPDOWN: Line protocol state on the interface GigabitEthernet0/0 changed to up. %Aug 9 15:39:19:119 2022 Tsz-Ching-Lorry_910046605_MSR2600 OSPF/5/OSPF_NBR_CHG: OSPF 100 Neighbor 172.20.118.1(GigabitEthernet0/0) changed from LOADING to FULL.

G0/0信息如下：

GigabitEthernet0/0 Current state: UP Line protocol state: UP Description: To_WAN_CSW-HG-HCFB_910045622_MSR3600_G0/0.618 Bandwidth: 100000 kbps Maximum transmission unit: 1500 Internet address: 172.20.118.2/30 (Primary) IP packet frame type: Ethernet II, hardware address: 5098-b884-7836 IPv6 packet frame type: Ethernet II, hardware address: 5098-b884-7836 Media type: Twisted pair, loopback: Not set, promiscuous mode: Not set 100Mbps-speed mode, full-duplex mode Link speed type is force link, link duplex type is force link Flow-control: Disabled Port priority: 0 Output queue - Urgent queuing: Size/Length/Discards 0/1024/0 Output queue - Protocol queuing: Size/Length/Discards 0/500/0 Output queue - FIFO queuing: Size/Length/Discards 0/75/0 Last link flapping: 0 hours 21 minutes 12 seconds Last clearing of counters: Never Current system time:2022-08-10 10:24:58 GMT+8+08:00:00 Last time when physical state changed to up:2022-08-10 10:03:46 GMT+8+08:00:00 Last time when physical state changed to down:2022-08-10 10:03:35 GMT+8+08:00:00 Peak input rate: 154750 bytes/sec, at 2022-06-10 13:17:15 Peak output rate: 62562 bytes/sec, at 2022-06-10 13:17:15 Last 300 second input: 136 packets/sec 9685 bytes/sec 0% Last 300 second output: 191 packets/sec 8666 bytes/sec 0% Input (total): 825392856 packets, 3740391194 bytes - unicasts, - broadcasts, - multicasts, - pauses Input (normal): - packets, - bytes 824680340 unicasts, 148 broadcasts, 712368 multicasts, 0 pauses Input: 43 input errors, 3 runts, 0 giants, - throttles 40 CRC, 3 frame, - overruns, 53 aborts - ignored, - parity errors Output (total): 1314227616 packets, 1344945198999 bytes - unicasts, - broadcasts, - multicasts, - pauses Output (normal): 1314227616 packets, 1344945198999 bytes 1313393290 unicasts, 60717 broadcasts, 773609 multicasts, 0 pauses Output: 0 output errors, - underruns, - buffer failures 0 aborts, 0 deferred, 0 collisions, 0 late collisions - lost carrier, - no carrier

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