e.g.
        isc_sockstatscounter_tcp4open,
        isc_sockstatscounter_tcp4openfail,
        isc_sockstatscounter_tcp4close,
        isc_sockstatscounter_tcp4bindfail,
        isc_sockstatscounter_tcp4connectfail,
        isc_sockstatscounter_tcp4connect,
        isc_sockstatscounter_tcp4acceptfail,
        isc_sockstatscounter_tcp4accept,
        isc_sockstatscounter_tcp4sendfail,
        isc_sockstatscounter_tcp4recvfail,
        isc_sockstatscounter_tcp4active