Late Collisions
- displays the number of late collisions
that have occurred for this interface since the
network interface supporting software was loaded.
Late collisions may be a symptom of cabling
problems. A late collision is one that occurred 64
bytes or more into the packet.
Late collisions may be an indication that a
segment is longer than allowed by the wiring
specifications. For example, if you are using
10Base-2 wiring, also known as Thinnet, the maximum
segment length is 185 meters.
A station will believe it has control of the
cable segment if it has already transmitted 64
bytes. If another node at the far end of the segment
has not yet seen the packet, and transmits, this
packet will collide with the first transmission
after the first 64 bytes have been sent.
Ensure that your segment length does not
exceed the maximum length allowed.
Because the location of cabling problems can
be very difficult to detect on an Ethernet network,
shorten an Ethernet segment (remove portions of the
network to isolate problems) until the problems are
no longer seen, and then expand the network until
the problem recurs.
OID: 1.3.6.1.2.1.10.7.2.1.8 -
dot3StatsLateCollisions