This attribute indicates the type of OMCI statistics threshold data. 1 eth 2 ces 3 gem port 4 bridge port For eth, there are 19 threshold data as follows: fcs-err value1 excessive-collision value2 late-collision value3 too-long value4 rx-buf-overflow value5 tx-buf-overflow value6 single-collision value7 multi-collisions value8 sqe value9 deferred-tx value10 internal-mac-tx-err value11 internal-mac-rx-err value12 carrier-sense-err value13 alignment-err value14 pppoe-filtered value15 drop-events value16 undersize value17 fragments value18 jabbers value19 For ces, there are 10 threshold data as follows: down-missing value1 down-reordered value2 down-misordered value3 down-buffer-underrun-overrun value4 down-malformed value5 down-stray value6 down-remote-loss value7 down-es value8 down-ses value9 down-uas value10 For gem port, there are 3 threshold data as follows: lost-packets value1 misinserted-packets value2 impaired-blocks value3 For bridge port, there are 3 threshold data as follows: delay-exceeded-discard value1 mtu-exceeded-discard value2 received-and-discarded value3