Allied Telesis AT-S20 - Manual (Page 106)

Statistics: Received and Transmitted Ethernet Frames
6-32
The graph shows the types of frames transmitted by the switch over
a period since the switch’s last reset or since the counters have been
reset to zero. Table 6-4 lists and defines the types of transmitted
frames.
Table 6-4 Transmitted Frames
Frame Type Description
Total Good
Transmits Total frames transmitted by the switch without errors.
Broadcasts Total number of received/transmitted good packets that were directed to
the broadcast address. This does not include multicast packets.
Multicasts The total number of received/transmitted packets that were directed to
the multicast address. This does not include packets directed to the
broadcast address. For the 100 Mbps ports, the counter records the sum of
alignment and code errors (frames received/transmitted with RX/TX error
signal).
Transmits
Deferred Frames whose transmission has been deferred by the switch due to lack of
resources; they are not stored in the buffer and eventually dropped.
Single Collisions A count of successfully transmitted frames on a particular interface for
which transmission is inhibited by exactly one collision.
Multiple
Collisions A count of successfully transmitted frames on a particular interface for
which transmission is inhibited by more than one collision.
Late Collisions Collisions that occur after 64-byte times of the frame had elapsed.
Excessive
Collisions A count of frames for which the first transmission on a particular interface
fails due to excessive collisions.
Carrier Sense
Errors The number of times that the carrier sense condition was lost or never
asserted when attempting to transmit a frame on a particular interface.
The count is incremented at most once per transmission attempt even
though the carrier sense condition fluctuates during a transmission
attempt.
Transmit
Timeouts Number of times the switch has stopped trying to transmit due to
collisions