feth Port Short Events

1.3.6.1.4.1.81.12.6.1.1.1.19

This counter is incremented by one for each CarrierEvent on this port with ActivityDuration less than ShortEventMaxTime. ShortEventMaxTime is 84 bits (21 nibbles). Note: shortEvents may indicate externally generated noise hits which will cause the repeater to transmit Runts to its other ports, or propagate a collision (which may be late) back to the transmitting DTE and damaged frames to the rest of the network. Implementors may wish to consider selecting the ShortEventMaxTime towards the lower end of the allowed tolerance range to accommodate bit losses suffered through physical channel devices not budgeted for within this standard. Note also that clause 27 repeaters do not perform fragment extension as clause 9 repeater does. REFERENCE Reference IEEE Draft Std 802.3u/D4 Rptr Mgt, 30.4.3.1.9, aShortEvents. Reference IETF 100Base-T Repeater MIB, rptr100MonitorPortShortEvents.