Displaying Port Statistics - Enterasys VH-2402S Management Manual

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.
Select the required stack unit, and port or module. The statistics displayed
are indicated in the following figure and table.
EtherLike Counter:
Alignment Errors
FCS Errors
Single Collision Frames :0
Multiple Collision Frames :0
SQE Test Errors
Deffered Transmissions :0
[Refresh Statistics]
[Reset Counters]
<OK> <PREV UNIT> <NEXT UNIT> <PREV PORT> <NEXT PORT>
Parameter
Alignment Errors
FCS Errors
Single Collision
Frames*
Multiple Collision
Frames*
SQE Test Errors*
Deferred
Transmissions*
Late Collisions
Excessive Collisions* The number of frames for which transmission failed due to
9033645-01
Vertical Horizon Local Management -- VH-2402S
Port Statistics : Unit 1 Port 1
:0
:0
:0
Use <TAB> or arrow keys to move. <Enter> to select.
Figure 2-46. Port Statistics
Description
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).
The number of frames received that are an integral number of
octets in length but do not pass the FCS check.
The number of successfully transmitted frames for which
transmission is inhibited by exactly one collision.
A count of successfully transmitted frames for which transmission
is inhibited by more that one collision.
A count of times that the SQE TEST ERROR message is
generated by the PLS sublayer.
A count of frames for which the first transmission attempt on a
particular interface is delayed because the medium was busy.
The number of times that a collision is detected later than 512 bit-
times into the transmission of a packet.
excessive collisions.
Late Collisions
Excessive Collisions
Internal MAC Transmit Errors:0
Carrier Sense Errors
Frames Too Long
Internal MAC Receive Errors :0
Show port : 1
[Show]
:0
:0
:0
:0
VH-2402S User Interface 59