ip_notaligned rather high in kstat -n ipstat

Hello group,

we have this shiny new T7-1 server and we noticed that it has a rather high ip_unaligned counter. What is 'ip_noaligned' exactly?

# kstat -n ipstat

module: ip                              instance: 0

name:   ipstat                          class:    net

        conn_in_recvdstaddr             0

        conn_in_recvdstopts             0

        conn_in_recvhoplimit            0

        conn_in_recvhopopts             0

        conn_in_recvif                  1093

        conn_in_recvopts                0

        conn_in_recvpktinfo             0

        conn_in_recvrthdr               0

        conn_in_recvrthdrdstopts        0

        conn_in_recvslla                0

        conn_in_recvtclass              0

        conn_in_recvttl                 0

        conn_in_recvucred               0

        conn_in_timestamp               120257

        crtime                          1293941.78036302

        ip_conn_flputbq                 0

        ip_conn_walk_drain              0

        ip_db_ref                       0

        ip_dce_reclaim_calls            0

        ip_dce_reclaim_deleted          0

        ip_in_sw_cksum                  19455035