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CheetahSwitch Workgroup-4508
Displaying Port Statistics
Port 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). The values displayed have been
accumulated since the last system reboot.
The statistics displayed are indicated in the following figure and table.
CheetahSwitch Workgroup - 4508
Port Statistics : Port 1
EtherLike Counter:
Alignment Errors :0 Late Collisions :0
FCS Errors :0 Excessive Collisions :0
Single Collision Frames :0 Internal MAC Transmit Errors:0
Multiple Collision Frames:0 Carrier Sense Errors :0
SQE Test Errors :0 Frames Too Long :0
Deffered Transmissions :0 Internal MAC Receive Errors :0
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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.
Excessive Collisions
1
The number of frames for which transmission failed due to excessive
collisions.
Internal Mac Transmit Errors
1
The number of frames for which transmission failed due to an
internal MAC sublayer transmit error.