OSPF issue betwwen PA VM-100 and Cisco 4431

Dzemail — Wed, 22 Nov 2023 15:43:26 GMT

Hello everyon,

I have an strange issue with OSPF, it is working normaly but one or two time in 24 hour palo alto loses its neighbors for 1 to 5 seconds.

I tied to troubleshoot and get message:

**** AUDIT 0x3e01 - 210 (0000) **** I:001d0046 F:00000002
qoamnfsa.c 768 :at 15:58:30, 22 November 2023 (268141554 ms)
OSPF 12 i/f idx 0X00000010 rtr ID 10.2.255.4 IP addr .... neighbor FSM state has deteriorated.
Interface address = IP addr ....
OSPF link category = 1
Is neighbor virtual? = 0
FSM input = QOAM_NBR_SEQ_NUMBER_ERR (10)
Old FSM state = AMB_OSPF_NBR_FULL (8)
New FSM state = AMB_OSPF_NBR_TWO_WAY (4)
FSM action = G (7)
Neighbor friend status = 3
Number of neighbor events = 6
Number of database exchange timeouts = 0

I can't find it anywhere what is this error is FSM input = QOAM_NBR_SEQ_NUMBER_ERR (10)

If anyone knows, I would be grateful.

Best regards

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OSPF issue betwwen PA VM-100 and Cisco 4431