Allied Telesis AT-S29 - Manual (Page 114)

Web-based Management
114
Port Statistics
Use the Port Statistics menu to display Etherlike or RMON statistics for
any port in the stack. Select the required stack unit, and port or module.
The statistics displayed are indicated in the following figure and table.
Etherlike
Statistics
Etherlike Statistics display key statistics from the Ethernet-like MIB for
each port. Error 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). Values
displayed have been accumulated since the last system reboot.
Port Number: 1
Alignment Errors Late Collisions
FCS Errors
Single Collision Frames
Multiple Collision Frames
SQE Test Errors
Deferred Transmissions
0
0
0
0
0
0
Excessive Collisions
Internal MAC Transmit Errors
Carrier Sense Errors
Frames Too Long
Internal MAC Receive Errors
0
0
0
0
0
0
Etherlike Statistics
Parameter Description
Alignment Errors For 10 Mbps ports, this counter records alignment errors (mis-
synchronized data packets). For 100 Mbps 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.
Late Collisions The number of times that a collision is detected later than 512 bit-times
into the transmission of a packet.