Allied Telesis AT-S29 - Manual (Page 65)

AT-S29 Management Software User’s Guide
65
Displaying Port
Statistics
Use the Port Statistics menu to display key statistics for each port. Overall
statistics on the traffic passing through each port are displayed. This
information can be used to identify potential problems with the switch
(such as a faulty port or unusually heavy loading).
Select the required stack unit, and port or module. The statistics
displayed are indicated in the following figure and table.
Port Statistics : Unit 1 Port I
=============================
EtherLike Counter:
Alignment Errors :0 Late Collisions :0
FCS Errors :0 Excessive Collisions :0
Single Collision Frames :0 Internal MAC Transmit Errors :O
Multiple Collision Frames :O Carrier Sense Errors :0
SQE Test Errors :0 Frames Too Long :0
Deferred Transmissions :0 Internal MAC Receive Errors :0
[Refresh Counters] [Reset Counters]
Use or arrow keys to move. to select.
Parameter Description
Alignment Errors For 10 Mbps ports, this counter records alignment errors (mis-
synchronized data packets). For 100Base-TX ports, this counter
records the sum of alignment errors and code errors (frames received
with rxerror signal).
FCS Errors The number of frames received that are an integral number of octets
in length but do not pass the FCS check.
Single Collision Frames
1
The number of successfully transmitted frames for which
transmission is inhibited by exactly one collision.
Multiple Collision
Frames
1
A count of successfully transmitted frames for which transmission is
inhibited by more that one collision.
SQE Test Errors
1
A count of times that the SQE TEST ERROR message is generated by
the PLS sublayer.
Deferred Transmissions
1
A count of frames for which the first transmission attempt on a
particular interface is delayed because the medium was busy.