If your static key MACsec configuration involves interoperability with VSP 4900 Series, VSP 8200 Series, VSP 8400 Series, VSP 7200 Series, VSP 7400 Series, 5520 Series (only front panel ports), and VIMs, you might see the following display inconsistencies for MACsec statistics:
one side can show delayed packets on the Ingress side