The Signal Packet Capture tool can potentially cause a Link Detection Group (LDG) failure due to how the tool manipulates the NIC and associated NP rules. To avoid this, Ribbon recommends to increase the LDG timer values. Additionally, you can increase the LDG's threshold value to 2 (default) so that even if an echo response is delayed and the link monitor fails, the LDG does not go into a failed state and attempt to trigger a switchover upon an initial failure.
Signaling Packet Capture Tool tip
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