rrddim_add(st, "RcvbufErrors", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(st, "SndbufErrors", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(st, "RcvbufErrors", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_add(st, "SndbufErrors", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);