IKEv2 negotiation failed because no matching IKEv2 proposals were found

The IKEv2 SA is in IN-NEGO status.

<Sysname> display ikev2 sa
Tunnel ID   Local                       Remote                      Status
  ---------------------------------------------------------------------------
  5           123.234.234.124/500         123.234.234.123/500         IN-NEGO
Status:
IN-NEGO: Negotiating, EST: Established, DEL:Deleting

Certain IKEv2 proposal settings are incorrect.

1. Examine the IKEv2 proposal configuration to see whether the two ends have matching IKEv2 proposals.

2. Modify the IKEv2 proposal configuration to make sure the two ends have matching IKEv2 proposals.